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RHABDOMYOSARCOMA

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RHABDOMYOSARCOMA

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    1. RHABDOMYOSARCOMA Dr. Michelle Ghert Osama Alshaya(PGY2) 2008/08/06

    2. Outline

    17. PLEOMORPHIC RMS involve biceps muscle: Only you can see soft tissue unclear mass

    18. MRI T1 MRI show mild hyperintense with isointense soft tissue tumor involving left gluteus medius muscle

    19. 51-year-old man with pleomorphic rhabdomyosarcoma of right thigh

    25. Spindle cell subtype has small round blue cells and separated by myxoid like matrix, cross striation seen under special stain .

    26. Poor Differentiated Embryonal RMS difficult to distinguish from other small round blue cell tumors(Ewing, PNET)

    27. Botryoid cell subtype dense rhabdomyoplast subepithelial layer

    28. Alveolar subtype(classic type) small round cell floating in pseudo-alveolar space represent fibrovascular septae

    29. Pleomorphic RMS spindle shape cells (wrist watches)

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