Kidney tumor - cysts, children, adult benign

Home Chapter Home Jobs Conferences Fellowships Books

Kidney tumor - cysts, children, adult benign

Benign (usually) adult tumors

Perineurioma

Reviewers: Mandolin Ziadie, M.D. (see Reviewers page)
Revised: 1 March 2012, last major update February 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

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

● Rare and benign tumor of perineurial cells

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

● 7 year old girl (Gen Diagn Pathol 1997;143:75)
● 26 year old man (Ann Pathol 2002;22:476)
● 66 year old woman (Arch Pathol Lab Med 1993;117:654)

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

● Storiform proliferation of delicate spindle cells with elongated processes
● No long fascicles, no ectatic vessels

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

Perineurioma: site unspecified

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

● EMA, type 4 collagen, GLUT1 and claudin1

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

● S100

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

● Low grade fibromyxoid sarcoma: focal to diffuse whirling, heavily collagenized stroma with abrupt transition to myxoid areas, often epithelioid areas, large collagen rosettes and infiltration of adjacent tissue
● Schwannoma: long fascicles, ectatic blood vessels, S100+, EMA- and type 4 collagen-

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

Ref Updated: 2/17/12

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).