Embryonal rhabdomyosarcoma

Testis and epididymis
Spermatic cord tumors
Embryonal rhabdomyosarcoma

Author: Rafael Jimenez, M.D. (see Authors page)

Revised: 25 May 2017, last major update March 2012

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PubMed Search: Embryonal rhabdomyosarcoma spermatic cord

Table of Contents

Definition / general | Gross description | Microscopic (histologic) description | Positive stains

Cite this page: Embryonal rhabdomyosarcoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/testisembryonalrhabdo.html. Accessed July 15th, 2017.

Definition / general

Most common childhood malignant tumor of spermatic cord
Peak age is 9 years
80% overall survival

Gross description

Fleshy grayish white to pinkish tan mass, 4 - 6 cm and may be mucoid

Microscopic (histologic) description

Small cells with hyperchromatic nuclei, minimal cytoplasm as well as cells with rims of eosinophilic cytoplasm and spindle cells with cytoplasmic tails and variable cross striations
Myxoid or collagenous stroma

Positive stains

Desmin, muscle specific actin and myoglobin