Home   Chapter Home   Jobs   Conferences   Fellowships   Books



Advertisement

Kidney tumor - cysts, children, adult benign

Benign (usually) adult tumors

Lipoma


Reviewers: Mandolin Ziadie, M.D. (see Reviewers page)
Revised: 10 December 2014, last major update January 2012
Copyright: (c) 2003-2014, PathologyOutlines.com, Inc.

General
=========================================================================

● Extremely rare; usually incidental

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

● Most commonly diagnosed in middle-age women

Case reports
=========================================================================

● 42 year old woman with huge retroperitoneal mass (Br J Radiol 2006;79:e148)
● 71 year old man (Kaohsiung J Med Sci 2005;21:383)

Gross images
=========================================================================



Parapelvic lipomatosis


Tumor appears to arise in hilar adipose tissue

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

● Well circumscribed tumor of benign adipocytes

Micro images
=========================================================================



Cortical tumor projects beneath the renal capsule

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

Angiomyolipoma: usually vascular and smooth muscle components; positive for melanocytic markers
Pelvic lipomatosis: associated with renal atrophy and hydronephrosis but not primarily a kidney lesion
● Atypical lipomatous tumor of retroperitoneum: large tumor with hyperchromatic atypical nuclei

End of Kidney tumor - cysts, children, adult benign > Benign (usually) adult tumors > Lipoma


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).