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Difference between revisions of "Granular cell tumour"
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| Micro = cells with abundant eosinophilic granular cytoplasm (granules ~ 1-3 micrometers, poorly demarcated on LM), +/-[[pseudoepitheliomatous hyperplasia]] | | Micro = cells with abundant eosinophilic granular cytoplasm (granules ~ 1-3 micrometers, poorly demarcated on LM), +/-[[pseudoepitheliomatous hyperplasia]] | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = [[squamous cell carcinoma]], [[oncocytoma]], adjacent ulcer | | LMDDx = [[squamous cell carcinoma]], [[oncocytoma]], adjacent ulcer, [[xanthoma]], [[melanocytic nevus]] with neurotization | ||
| Stains = PAS +ve | | Stains = PAS +ve | ||
| IHC = S-100 +ve, CD68 +ve (cytoplasmic), vimentin +ve (membranous), calretinin +ve (usually) | | IHC = S-100 +ve, CD68 +ve (cytoplasmic), vimentin +ve (membranous), calretinin +ve (usually) | ||
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*[[Oncocytoma]]. | *[[Oncocytoma]]. | ||
*[[Melanocytic nevus]] with neurotization. | *[[Melanocytic nevus]] with neurotization. | ||
*[[Xanthoma]]. | |||
==Special stains== | ==Special stains== | ||