Home   Chapter Home   Jobs   Conferences   Fellowships   Books



Advertisement

Bladder

Urothelial carcinoma-invasive

Lymphoma-like carcinoma


Reviewers: Nat Pernick, M.D., PathologyOutlines.com, Inc. (see Reviewers page)
Revised: 3 July 2011, last major update June 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.

Definition
=========================================================================

● First described in 1991 (Am J Surg Pathol 1991;15:569)
● Very few cases have been reported

Epidemiology
=========================================================================

● 80% male; age range 61-76 years

Micro description
=========================================================================

● Single, malignant cells in loose or myxoid stroma resembling lymphoma, particularly at biopsy
● Usually areas of high grade urothelial carcinoma
● Often prominent lymphoid infiltrate (usually T cells)

Positive stains
=========================================================================

● CK7; variable CK20

Negative stains
=========================================================================

Epithelial cells: lymphoid markers

Differential diagnosis
=========================================================================

Lymphoepithelioma-like carcinoma: tumor cells appear in syncytium, not as single cells
Lymphoma: no urothelial carcinoma component; positive for lymphoid markers and negative for keratin
Plasmacytoma: associated with myeloma, plasmacytoid cells with abundant cytoplasm and eccentric nuclei, often binucleated forms, no classic urothelial carcinoma, CD38+, CD138+, negative for keratin

End of Bladder > Urothelial carcinoma-invasive > Lymphoma-like carcinoma


This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.

All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at copyrightPathOut@gmail.com with any questions (click here for other contact information).