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Fig. 3 | Diagnostic Pathology

Fig. 3

From: ARID1A deficient undifferentiated spindle cell and rhabdoid sarcoma of the prostate: report of a unique case with emphasis on diagnostic implications

Fig. 3

Histologic characteristics of ARID1A deficient undifferentiated spindle cell and rhabdoid sarcoma of the prostate. (a) Lower magnification showing a densely cellular, solid and lobulated tumor with an overall pushed but multifocal infiltrating border (as indicated by arrow). (b, c) The tumor cells were mainly mildly atypical, oval to spindle-shaped cells, arranging in sheets and fascicles or herringbone-like patterns within edematous to myxoid, vascularized stroma. (d) Areas of storiform, whirling or morular structures are noted. (e) Groups of discohesive rhabdoid tumor cells (as indicated by arrows) and (f) multifocal geographic necroses (as indicated by asterisks) are evident

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Diagnostic Pathology

ISSN: 1746-1596

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