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Difference between revisions of "Peripheral nerve sheath tumours"
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Peripheral nerve sheath tumours (view source)
Revision as of 15:47, 1 June 2012
, 15:47, 1 June 2012→Malignant triton tumour: expand... add IHC, EM
(→Malignant triton tumour: expand... add IHC, EM) |
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# Schwann cell tumour characteristics. | # Schwann cell tumour characteristics. | ||
# Rhabdomyoblasts. | # Rhabdomyoblasts. | ||
#* Eosinophilic cytoplasm. | |||
#* +/-Cross-striations. | |||
DDx: | DDx: | ||
*[[Malignant peripheral nerve sheath tumour]]. | *[[Malignant peripheral nerve sheath tumour]]. | ||
*[[Adult fibrosarcoma]]. | |||
*[[Synovial sarcoma]]. | |||
===IHC=== | |||
Features: | |||
*S100 +ve/-ve -- usu. focal if positive.<ref name=pmid17149968/> | |||
*Leu-7 +ve/-ve. | |||
*Myelin basic protein +ve/-ve. | |||
Rhabdomyoblastic differentiation:<ref name=pmid17149968/> | |||
*Desmin. | |||
*Actin. | |||
*Myogenin. | |||
===EM=== | |||
*+/-Sarcomeres.<ref name=pmid17149968/> | |||
==Morton neuroma== | ==Morton neuroma== | ||