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Fig. 4 | Diagnostic Pathology

Fig. 4

From: Embryonal rhabdomyosarcoma arising from the uterine corpus in a postmenopausal female: a surgical case challenging the genuine diagnosis on a cytology specimen

Fig. 4

Microscopic examination of the resected embryonal rhabdomyosarcoma arising from the uterine corpus. a The viable polypoid lesions were composed predominantly of a diffusely cellular and solid proliferation of highly atypical spindle-shaped cells arranged focally in bundles. Bar = 50 μm. b On high-power view, there were many admixed characteristic rhabdomyoblasts having abundant densely eosinophilic, and round (left) to tadpole- or strap-shaped (right) cytoplasm. Bar = 25 μm. c In addition, these atypical cells sometimes contained distinct cross-striations (left). Phosphotungstic acid-hematoxylin (PTAH) staining (right) was able to clearly reveal these cross-striations (arrowheads). Bar = 25 μm. d On the other hand, the neoplastic foci partly coexisted with cellular primitive small blue round to oval cells Bar = 50 μm

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Diagnostic Pathology

ISSN: 1746-1596

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