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Papillary carcinoma pathology outlines

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Thyroid gland - Papillary thyroid carcinoma. Predominant form of thyroid carcinoma, accounting for 80 - 93% in contemporary series (IARC: CI5 Cancer Incidence in Five Continents [Accessed 30 September 2019]) There is a growing number of papillary thyroid carcinoma in the last 15 - 20 years due to increasing recognition of thyroid nodules on imaging (ultrasound and CT), sometimes referred as. 44 year old man with intracystic papillary carcinoma in a male as a rare presentation of breast cancer (J Med Case Rep 2009;3:13) 58 year old woman with solid variant of a pure intracystic papillary carcinoma of the breast (Eur J Gynaecol Oncol 2008;29:545) 64 year old man with intracystic invasive papillary carcinoma of the male breast with analyses of loss of heterozygosity on chromosome 16q. The utility of pax-2 and renal cell carcinoma marker immunohistochemistry in distinguishing papillary renal cell carcinoma from nonrenal cell neoplasms with papillary features. Appl Immunohistochem Mol Morphol. 2010 Dec;18(6):494-8

Myoepithelial cells often cannot be demonstrated around the outside of papillary DCIS; however, papillary DCIS is not clinically an invasive carcinoma Invasion, when it occurs, is typically low grade infiltrating ductal or very rarely invasive papillary Ovary - High grade serous carcinoma. 13 year old girl and 69 year old woman with normal sized ovarian carcinoma syndrome (Horm Mol Biol Clin Investig 2018;35:1) 22, 35 and 47 year old women with low grade serous neoplasms of the ovary with transformation to high grade carcinomas (Int J Gynecol Pathol 2012;31:423) 51 year old woman with high grade serous ovarian cancer 3 years after bilateral. Intracystic papillary carcinoma of the breast - Libre Pathology Intracystic papillary carcinoma of the breast Intracystic papillary carcinoma of the breast, also known as encapsulated papillary carcinoma of the breast (abbreviated EPC), is an uncommon type of breast cancer with a very good prognosis Thyroid tissue lateral to the jugular vein (often referred to as lateral aberrant thyroid tissue) is generally considered metastatic thyroid carcinoma (papillary thyroid carcinoma) even if it looks benign. This dictum is disputed. The level VI and VII lymph nodes are medial to the jugular Papillary thyroid carcinoma (PTC) is the most common malignancy of the thyroid, contributing to over 70% of thyroid cancers. 1 These tumors are diagnosed using characteristic nuclear morphology; however, within the classification of papillary thyroid carcinoma, there exist several distinct architectural and cytologic subtypes

Papillary lesions of the breast are a heterogeneous group of neoplasms, which includes benign intraductal papilloma (IDP) as well as papilloma with atypia (atypical papilloma) and ductal carcinoma in situ (DCIS), papillary DCIS, and variants of papillary carcinoma Solid papillary carcinoma of the breast is a rare entity with distinctive clinicopathological features and excellent prognosis and should be distinguished from conventional breast carcinoma to avoid over-treatment Papillary lesions with low ISUP grade must be >1.5 cm to be called carcinoma; smaller lesions (<=1.5 cm) with low ISUP grade are called papillary adenomas. †. Mnemonic HIP: h ighly vascular, i nterstitial foam cells, p apillae. Note: † The diagnostic size cut-off in the 2004 WHO GU (blue) book was 0.5 cm. DDx

Papillary carcinoma of the breast: diagnostic agreement and management implications Recognition of PC as a malignant entity (in situ or invasive) is high, but concordance of its classification into in-situ and invasive disease is low. Histological features that can define invasion in PC should be better defined Papillary thyroid carcinoma (PTC) is a common malignancy with multiple variants, some of which are rarely encountered in routine surgical pathology practice. PTC with exuberant nodular fasciitis-like stroma or PTC with fibromatosis-like stroma is one such variant Primary peritoneal serous papillary carcinoma (PPSPC) is a rare primary tumor of the peritoneum that found predominantly in elderly and post-menopausal women. The aim of our study is to review the clinical and pathologic information of 22 patients, and then try to summarize clinical behavior and pat Background: Warthin-like papillary carcinoma of thyroid is characterized by distinct papillary formations lined by tumor cells with oncocytic cytoplasm, nuclear features of papillary carcinoma, and brisk lymphoplasmacytic infiltrates in the papillary stalks. This tumor derives its name from its close resemblance to Warthin tumor of major salivary glands

Intraductal papillary carcinoma, also known as papillary DCIS and noninvasive papillary carcinoma, is distinguished by the complete or near-complete absence of myoepithelial cells in the papillary fronds of the intraductal neoplastic proliferation. 16 Nipple discharge or a palpable mass may be the presenting symptom, depending on the location and size of the lesion. 1 Abstract Solid variant of papillary thyroid carcinoma (SVPTC) is a rare morphological variant of papillary thyroid carcinoma (PTC). SVPTC is histologically characterized by predominant solid, trabecular and insular nests of tumor cells while cytological features of PTC such as nuclear grooves and nuclear inclusions are preserved Encapsulated papillary carcinoma (EPC) is a rare entity of breast cancer accounting for approximately 1-2% of all breast tumours. There are no evidence-based guidelines for the treatment of EPC.From the database of the National Centre of Pathology. Papillary renal cell carcinoma, or PRCC, is a type of kidney cancer. The kidneys work by removing waste products from the blood. Papillary renal cell carcinoma is a cancer of the tubes that filter those waste products from the blood. There are two types of papillary renal cell carcinoma Visual survey of surgical pathology with 11131 high-quality images of benign and malignant neoplasms & related entities. Focused Papillary Carcinoma with stained slides of pathology. Follow us: 11131 Images : Last Website Update : Jun 9, 2021. Papillary Carcinoma High Quality Pathology Images of Breast: Breast Carcinomas of Papillary Carcinoma

Papillary Breast Cancer Diagnosis. Papillary breast cancer is a very rare type of invasive ductal breast cancer that accounts for fewer than 1% of all breast cancers. The name comes from finger-like projections, or papules, which are seen when the cells are looked at under the microscope.. Many papillary tumors are benign High grade papillary urothelial carcinoma. Frequent branching of fibrovascular cores Frequent fusing of papillae; Lining epithelium is disordered, lacking maturation and polarity. Umbrella cells usually absent Department of Pathology Stanford University School of Medicine Stanford CA 94305-5342 An invasive papillary carcinoma usually has a well-defined border and is made up of small, finger-like projections. Often it is grade 2, or moderate grade, on a scale of 1 to 3 — with grade 1 describing cancer cells that look and behave somewhat like normal, healthy breast cells, and grade 3 describing very abnormal, fast-growing cancer cells. Background: The tall cell variant of papillary thyroid carcinoma is an aggressive subtype that generally presents as a large tumor in the advanced stage; however, little is known about the tall cell variant of microcarcinoma (tumors measuring <1 cm). In this study, we compare the tall cell variant of microcarcinoma (microTCV) with classic papillary microcarcinomas to examine the hypothesis. (While non-invasive papillary urothelial neoplasms are technically also in situ, they are not referred to as carcinoma in situ) Diagnostic Criteria. The only clearly significant and reproducible distinction is between carcinoma in situ (CIS) and lesions that fall short of malignanc

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  1. 2.1 Subtypes of DCIS. 2.1.1 Solid ductal carcinoma in situ. 2.1.2 Cribriform ductal carcinoma in situ. 2.1.3 Papillary ductal carcinoma in situ. 2.1.4 Micropapillary ductal carcinoma in situ. 2.2 Grading DCIS. 2.3 Size criteria for low-grade DCIS. 2.4 Micrometastasis in DCIS. 3 See also
  2. Pathology and genetics of tumors of the Urinary System and Male Genital Organs. IARC Press: Lyon 2004. Cox R, Epstein JI. Large nested variant of urothelial carcinoma: 23 cases mimicking von Brunn nests and inverted growth pattern of noninvasive papillary urothelial carcinoma. Am J Surg Pathol. 2011 Sep;35(9):1337-42
  3. a propria (common) Subtypes. subtype of urothelial carcinoma

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Definition. Carcinoma of the kidney exhibiting papillary architecture with oncocytic lining cells; Diagnostic Criteria. Note: it is not presently clear if oncocytic papillary renal cell carcinoma is an independent type of carcinoma or if it represents a subtype of papillary renal cell carcinoma (PRCC). Limited data available on behavio Benign renal cortical neoplasm with papillary/tubular pattern measuring ≤1.5 cm; Diagnostic Criteria. Among renal cell neoplasms, the term adenoma is reserved for those with a papillary or tubular pattern. No equivalent benign lesion is recognized for clear cell, chromophobe, collecting duct or medullary carcinomas Papillary carcinoma thyroid (PTC) is the most common differentiated malignancy of thyroid gland. Depending on the different histopathological patterns, cell types and clinical features different variants of papillary carcinoma thyroid have been described NOEL WEIDNER, Farnaz Hasteh, in Modern Surgical Pathology (Second Edition), 2009. CLINICAL FEATURES. Papillary carcinoma has been associated with a relatively favorable prognosis in many studies; even in women with axillary node metastases. 145 This may reflect the inclusion of many preinvasive, in situ, and intracystic papillary carcinomas in the various series

In the United States, thyroid carcinoma comprises about 1% of all cancers and accounts for 0.2% of cancer deaths. 1, 2 Most of these cancers are of the papillary type. This is the most common. AP110 Bladder Biopsy Pathology - Part 1 3 Mahul B. Amin, MD, FCAP Papillary Neoplasm of Low Malignant Potential Papillary Carcinoma, Low grade Papillary Carcinoma, High grade INVASIVE NEOPLASMS Lamina Propria Invasion Muscularis Propria (Detrusor Muscle) Invasion *May include cases formerly diagnosed as mild dysplasi Papillary thyroid carcinoma. Serous carcinoma. Somatostatinoma, duodenal. Papillary renal cell carcinoma. Anaplastic Meningioma. Mesothelioma. Memory device PSaMMoma: Papillary (thyroid, renal), Serous (ovary), Meningioma, Mesothelioma. Isolated psammoma bodies in smears or aspirates are an unreliable predictor of papillary carcinoma

Pathology Outlines - Papillary thyroid carcinoma overvie

Pathology Outlines - Papillary carcinoma - invasive

Pathology Outlines - Encapsulated papillary carcinom

Primary peritoneal carcinoma has a prognosis that overlaps with, or is the same as, tubal/ovarian carcinomas of similar histologic grade. This is reflected in the latest American Joint Commission on Cancer and International Federation of Gynecology and Obstetrics staging systems, which now have a unified staging scheme for ovarian, tubal, and peritoneal carcinomas Tall cell variant (TCV) is an aggressive form of papillary thyroid carcinoma (PTC), usually associated with higher local recurrence and distant metastasis. Such scanning is an inexact process, and subjectivity plays a large role. The tall cell variant of thyroid papillary carcinoma differs from classic papillary carcinoma in its more aggressive. Pathology Papillary Carcinoma. Papillary carcinoma is an unencapsulated tumor with papillary and follicular structures that is characterized by changes in cell nuclei, such as overlap of the nuclei, large nuclei, a ground glass appearance, longitudinal nuclear grooves, and invaginations of the cytoplasm into the nuclei. Recognized histologic. The stroma is denser and more cellular than with basal cell carcinoma, and there is often focal stromal cracking (Figure 2, arrow). Often pronounced bulbar differentiation may be seen, emulating the follicular bulb and papilla; these structures have been referred to as papillary mesenchymal bodies. (Figure 3, arrow). Trichoepithelioma pathology Papillary carcinoma of the breast, also known as intraductal papillary carcinoma, is a rare type of breast cancer that accounts for only 0.5% of all new cases of invasive breast cancers. 1  It is defined by finger-like projections called papules, which can be seen when cells are examined under a microscope

Overlying mucosa is normal or may have papillary component; Frequently involves ureteral orifices ; Aggresive, invasive carcinomas in spite of bland cytology; Robert V Rouse MD Department of Pathology Stanford University School of Medicine Stanford CA 94305-5342 . Original posting/updates: 10/20/1 Papillary urothelial carcinoma is a type of bladder cancer. It starts in urothelial cells in the bladder lining. Urothelial cells also line the urethra, ureters, and other parts of the urinary tract Papillary SCC should be histopathologically delineated from other rare variants of SCC with papillary features including verrucous and condylomatous carcinoma and the recently recognized (squamo-)transitional cell carcinoma of the uterine cervix. We report three cases of papillary SCC (FIGO stages IB, IV, and IVB) in postmenopausal women

The majority of high-grade papillary urothelial carcinomas become invasive (approximately 80%) and can spread to adjacent organs or give distant metastases (lung, liver, bone, brain, etc.). Urothelial carcinoma in-situ (CIS): In contrast to papillary carcinomas, CIS is a flat high-grade cancer that is difficult to visualize in cystoscopy. CIS. Papillary urothelial carcinoma is a form of bladder cancer. It develops within a type of cell in the inner lining of the bladder, ureters, and lower kidneys. The bladder is a muscular organ in the. Solid papillary carcinoma (SPC) of the breast is defined as a distinctive form of papillary carcinoma characterized by closely apposed expansive, cellular nodules. This uncommon tumor frequently demonstrates neuroendocrine differentiation. SPCs are staged as in situ tumors, except those that exhibit jagged borders within desmoplastic stroma, or if accompanied by conventional invasive. Posted on December 30, 2020 Author pathologyoutlinesblog Categories Images of the Week Tags bone, Chondromyxoid fibroma, increta and percreta, MDM2, micro images, microscopic images, Papillary thyroid carcinoma, pathology, pathology images, Pathology Outlines, pathologyoutlines, pathologyoutlines.com, Placenta accreta, Stains Leave a comment on.

Papillary Renal Cell Carcinoma - Surgical Pathology Criteri

Papillary Ductal Carcinoma In Situ of the Breast

Progression to invasive urothelial cancer is believed to occur via 2 molecular pathways: hyperplasia/papillary (70-80%) and flat/dysplasia (20-30%) pathways, both are associated with chr. 9 losses at initiation. Majority in flat pathway progress to invasive carcinoma , and is associated with abnormalities in p53 and Rb genes.; Hyperplasia pathway is associated with HRAS and EGFR mutations, and. Liang Cheng, David G. Bostwick, in Urologic Surgical Pathology (Second Edition), 2008 Papillary urothelial neoplasm of low malignant potential (PUNLMP) PUNLMP is a low-grade urothelial tumor with a papillary architecture and a purported low incidence of recurrence and progression. 140,141,143,165,167-169 This lesion is histologically defined by the WHO (2004) classification system as a. Follicular thyroid carcinoma is being diagnosed less and less frequently despite the increasing incidence of well-differentiated thyroid carcinomas everywhere. This review will discuss the reasons.

Pathology Outlines - High grade serous carcinom

Papillary thyroid carcinoma is the most common thyroid cancer. About 80% of all thyroid cancers cases are papillary thyroid cancer. 1 . Most commonly, papillary thyroid cancers are totally asymptomatic. However, the most common symptom is a mass in the neck. Papillary carcinoma typically arises as a solid, irregular or cystic mass that comes. Central lymph node metastasis of unilateral papillary thyroid carcinoma: patterns and factors predictive of nodal metastasis, morbidity, and recurrence. Ann Surg Oncol . 2011 Aug. 18(8):2245-50. Clinical. age 60-70s. lymph node mets likely. life expectancy 6 months. arises from preexisting carcinoma, usually papillary Solid variant is a rare and poorly characterized variant of papillary thyroid carcinoma. In this study we analyzed 20 primary cases of the solid variant of papillary carcinoma found in a series of 756 papillary carcinomas operated at the Mayo Clinic between 1962 and 1989. The criteria for classification included predominantly (>70%) solid growth pattern of primary tumor, retention of cytologic.

Intracystic papillary carcinoma of the - Libre Patholog

T1 Tumor invades subepithelial connective tissue. High grade papillary urothelial carcinoma, with early invasion, showing single cells and irregularly shaped nests of tumor cells infiltrating the underlying stroma ( T1 ). To detect subepithelial invasion, scroll through all areas of subepithelial connective tissue Solid papillary carcinoma is an uncommon lesion that affects primarily elderly women, with a mean age of 72 years in one series.1,2,4 However, occasionally this tumor can affect patients younger than 50 years.6,7 Rarely, SPC can occur in male patients.6 Nearly 95% of cases are unilateral, and the majority of tumors arise in the central area of the breast.1,8 There are no specific clinical. The immunohistochemical profiles (cytokeratin-7 and -20) and the detection of human papillomavirus 16 support its close relationship to conventional squamous cell carcinoma. The lesion is compared to previously reported cases of papillary transitional cell carcinoma of the vagina and papillary squamotransitional cell carcinoma of the cervix

Papillary thyroid carcinoma - Libre Patholog

Invasive papillary carcinoma is an unusual variant of mammary carcinoma with an infiltrative growth pattern composed of neoplastic ductal cells arranged around stromal papillary cores (Figures 12, a through d, and 13, a through d). 140 Invasive papillary carcinoma is associated with a florid, reactive desmoplastic stroma and shares a propensity. Papillary carcinoma, the most common malignant tumor of the thyroid gland, has a very broad morphologic spectrum.1 In 1991, Albores-Saavedra et al2 described 17 cases of a macrofollicular variant of an encapsulated papillary carcinoma of the thyroid, which can be easily confused with nodular goiter or benign follicular adenoma. According to the definition given by these authors, the. Carcinoma Includes papillary, follicular, anaplastic, poorly differentiated, and medullary cancers Use of this protocol is also not required for pathology reviews performed at a second institution (ie, secondary consultation, second opinion, or review of outside case at second institution) High recurrent rate of multicentric papillary thyroid carcinoma. Ann Surg Oncol 2009; 16:2609. Leboulleux S, Rubino C, Baudin E, et al. Prognostic factors for persistent or recurrent disease of papillary thyroid carcinoma with neck lymph node metastases and/or tumor extension beyond the thyroid capsule at initial diagnosis

Variants of Papillary Thyroid Carcinoma (Microcarcinoma

Hashimoto's thyroiditis (HT) is the most common autoimmune thyroid disease and the most common cause of hypothyroidism. This condition was first described in 1912 by Hakaru Hashimoto, a Japanese surgeon and pathologist ().The pathology is characterized by diffuse lymphocyte infiltration, fibrosis, and parenchymal atrophy Papillary lesions 1. Verrucal-Papillary Lesions 2. Verrucal-Papillary Lesions • Reactive lesions: • • • • • Papillary hyperplasia Condyloma Latum Squamous Papilloma Condyloma Acuminatum Focal epithelial hyperplasia • Neoplasms: • Keratoacanthoma • Verrucous carcinoma • Unknown etiology: • Pyostomatitis vegetans • Verruciform xanthoma Verrucous leukoplaki

Pathology Outlines - Papillary thyroid carcinoma overview

Papillary lesions of the breast with and without atypical ductal hyperplasia: can we accurately predict benign behavior from core needle biopsy?. Am J Clin Pathol. 2004 Sep. 122(3):440-3. . Wang H, Tsang P, D'Cruz C, Clarke K. Follow-up of breast papillary lesion on core needle biopsy: experience in African-American population histology of renal medullary carcinoma, chromophobe RCC, and urothelial carcinoma (UC) have been reported in patients bearing sickle cell anemia.8,9 A fusion of ALK gene on chro- mosome 2p23 and other genes including Vinculin (VCR) gene on chromosome 10q22.2, Tropomyosin 3 (TPM3) gene on chromosome 1q23 and EML4 gene on chromosome 2p21 has been identified to date.8-10 Immunohistochemically. A low-power view of a left lobe follicular nodule with small focus of papillary carcinoma (box) is shown in panel E. F, High-power view of papillary carcinoma shown in panel E. Pathology findings Each of the thyroid specimens from the four siblings showed nodular hyperplasia, with multiple discrete, well-circumscribed, and occasionally.

Papillary Lesions of the Breast: A Practical Approach to

  1. Invasive papillary carcinoma. Invasive papillary carcinoma is a type of breast cancer that shows an extensive papillary pattern of growth. It has a better prognosis than other, more common types of breast cancer. Treatment for invasive papillary carcinoma includes surgery, hormonal therapy, radiation and chemotherapy. Your final pathology repor
  2. ent nodule. Cervical lymph nodes may be palpable in 30% patients, while 3 to 5 % patients may present with hoarseness, difficulty in breathing or difficulty in swallowing
  3. WebPathology is a free educational resource with 11131 high quality pathology images of benign and malignant neoplasms and related entities. Papillary Carcinoma. Papillary Carcinoma. 18 slides. Mar 2016 Infiltrating Ductal Carcinoma. Infiltrating Ductal Carcinoma
  4. Papillary renal cell carcinoma (PRCC) is a type of cancer that occurs in the kidneys. It accounts for about 10-15% of all renal cell carcinomas. R enal cell carcinoma s are a type of kidney cancer that develop in the lining of very small tubes (tubules) in the kidney. The term papillary describes the finger-like projections that can be found in most of the tumors
  5. The papillary adenoma pathology outlines colorectal cancer therapy effects papilloma pharyngeal the followings: enamel decalcification white spot lesions, papillary adenoma pathology outlines incipiensperiodontal problems, root resorption, TMD disorders, allergy. Because of their common 6-fluorosubtituent on the quinolone ring, fluroquinolones.
  6. carcinoma and its morphological variants (squamous cell carcinoma, adenocarcinoma, Mϋllerian carcinoma, neuroendocrine carcinoma, and sarcomatoid carcinoma)# # This protocol is recommended for reporting noninvasive urothelial tumors (papillary and flat), but it is not required for accreditation purposes
  7. Pathology It is histologically identical to serous papillary carcinoma of the ovary 7. PSPCP is believed to originate from either peritoneal mesothelial cells with müllerian differentiation or nests of ovarian tissue remnants within the peritoneum. Markers. Serum CA-125 levels may be elevated 3-4. Radiographic features C

Solid papillary carcinoma of the breast: A special entity

Surgical Pathology Cancer Case Summary . four major types; papillary thyroid carcinoma, follicular thyroid carcinoma, anaplastic thyroid carcinoma, and medullary thyroid carcinoma. Most (95%) patients remain disease-free at four years, similar to classical PTC outcomes, suggesting that oncocytic variant may not represent a more aggressive variant s regarded as clinically inconsequential, whereas papillary in situ carcinomas have been largely considered a type of invasive adenocarcinoma under the heading of papillary adenocarcinomas. In this study, 123 GB cases that have a well-defined exophytic preinvasive neoplasm measuring ≥1 cm were analyzed. The patients were predominantly female (F/M=2:1) with a mean age of 61 y and a. Papillary carcinoma (PTC) is the most common form of well-differentiated thyroid cancer, and the most common form of thyroid cancer to result from exposure to radiation. Papillary carcinoma appears as an irregular solid or cystic mass or nodule in a normal thyroid parenchyma Medullary Carcinoma. Medullary carcinomas make up less than 5% of all breast carcinomas. They share a number of features with BRCA-1 associated breast cancers, including - relatively young age at diagnosis, lympho-plasmacytic infiltrate, high-grade morphology, triple-negative phenotype, and p53 mutations. Among breast cancers arising in BRCA-1. Understanding Your Pathology Report: Ductal Carcinoma In Situ (DCIS) When your breast was biopsied, the samples taken were studied under the microscope by a specialized doctor with many years of training called a pathologist.The pathologist sends your doctor a report that gives a diagnosis for each sample taken

Papillary renal cell carcinoma - Libre Patholog

But the type of TCC that occurs in the bladder -- transitional cell carcinoma-- is the most common kind of bladder cancer. Transitional cell carcinoma can be either low grade or high grade. If it. Papillary thyroid carcinoma (PTC) is the most common malignancy in the thyroid, representing up to 80% of all thyroid carcinomas. Tumors are classified by size as either less than 1 cm (microscopic PTC, often referred to as incidental) or more than 1 cm (clinically significant PTC)

Pathology Outlines - Papillary carcinoma - tall cell variantInverted papillary urothelial carcinoma pathology outlines

Renal papillary necrosis is a condition where there is death of the renal papillae. These papillae can be necrosed either partially or completely. The area where the collecting duct enters the kidneys are the renal papillae and these are the areas where the urine flows into the ureters [2, 4, 6, 7] The incidence rates according to RCC histologic subtypes are 5-13% for clear cell renal cell carcinoma (CCRCC), 2-7% for papillary RCC, 9-13% for chromophobe RCC, and 11-26% for unclassified RCC. Sarcomatoid differentiation also occurs in around 29% of carcinomas of the collecting duct of Bellini Introduction. Papillary carcinoma (PC) is a histologic subtype of breast carcinoma characterized by a malignant proliferation of epithelial cells supported by arborescent fibrovascular cores ().Papillary carcinomas can be invasive or noninvasive (papillary ductal carcinoma in-situ [DCIS]) and can exist in localized, mass-forming variants such as encapsulated papillary carcinoma (EPC) and solid. Undifferentiated carcinoma. Carcinoma with lymphoid stroma. Hepatoid carcinoma. Adenocarcinoma with enteroblastic differentiation. Adenocarcinoma of fundic gland type. Micropapillary adenocarcinoma *JGCA, Japanese Gastric Cancer Association {978-4-307-20375-3}. **Table prepared in collaboration with Prof. Ryoji Kushima, Japa Micropapillary carcinoma (MPC) of urinary tract is an uncommon variant of urothelial carcinoma with significant diagnostic and prognostic implications. Though MPC shows characteristic microscopic features, there exists interobserver variability and also it needs to be differentiated from the metastasis from other organs. The prognosis is generally poor, depending on the proportion of the.