Anus and perianal area
Reviewer: Nat Pernick, M.D. (see Reviewers page)
Revised: 16 April 2013, last major update April 2005
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
● In perianal region of children and infants
● Undifferentiated small round blue cell tumor
● May have multinucleated tumor cells
Electron microscopy description
● Evidence of muscle differentiation
End of Anus and perianal area > Other malignancies > Embryonal rhabdomyosarcoma
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