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Embryonal rhabdomyosarcoma of the middle ear
Author(s) -
Hosoda Syun,
Suzuki Harumi,
Kawabe Yoshitaka,
Watanabe Yoshihiko,
Isojima Genzo
Publication year - 1971
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(197104)27:4<943::aid-cncr2820270429>3.0.co;2-3
Subject(s) - embryonal rhabdomyosarcoma , rhabdomyosarcoma , pathology , medicine , middle ear , anatomy , sarcoma
A case of embryonal rhabdomyosarcoma of the middle ear is reported with a very limited number of strap‐shaped cells showing cross striation and a fair number of forms intermediate between large anaplastic cells and differentiated neoplastic rhabdomyoblasts. Electron microscopic observations confirmed that the intermediate forms of the tumor cells were malignant rhabdomyoblasts synthesizing cytoplasmic myofibrils at various stages of differentiation during the tumor growth. The present case is considered to be a moderately differentiated type of embryonal rhabdomyosarcoma.