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Difference between revisions of "Soft tissue lesions"
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→Tumours of uncertain differentiation: +ASPS
(→Desmoplastic small round cell tumour: tweak DDx) |
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| Line 350: | Line 350: | ||
=Tumours of uncertain differentiation= | =Tumours of uncertain differentiation= | ||
==Alveolar soft part sarcoma== | |||
*Abbreviated ''ASPS''. | |||
===General=== | |||
*Adolescents/young adults. | |||
*Children -- classically location: base of tongue and orbit. | |||
===Microscopic=== | |||
Features:<ref name=Ref_WMSP627>{{Ref WMSP|627}}</ref> | |||
*Arranged in nest/separated by thin septa; vaguely resembles alveoli (at low power). | |||
*Abundant eosinophilic cytoplasm | |||
*An eccentric nucleus. | |||
Images: | |||
===Molecular=== | |||
t(X;17). | |||
==Desmoplastic small round cell tumour== | ==Desmoplastic small round cell tumour== | ||
*Abbreviated ''DSRCT''. | *Abbreviated ''DSRCT''. | ||