Difference between revisions of "Eccrine spiradenoma"

Eccrine spiradenoma (view source)

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 **These two tumors are very closely related and overlap.
 **Many tumors have areas of both spiradenoma and cylindroma.
-**The lobules of cylindroma are more consistently discrete and surrounded by prominent hyaline material.
+**The lobules of cylindroma are
+***more consistently discrete,
+***show more a more consistent arrangement of the light and dark cells and are
+***surrounded by prominent hyaline material.
 **Individual lobules of cylindroma fit together like pieces of a puzzle.
+**Lobules of spiradenoma
+***may run together and fuse,
+***may not have a prominent hyaline surround and
+***may show more disorganization and mixing of the two cell types
 *[[Trichoepithelioma]].
+**Trichoepithelioma will show
+***attempts at hair bulbs,
+***areas with more eosinophilic cytoplasm and
+***characteristic peritumoral stroma
 *[[Glomus tumour]], hemangioma or hemangiopericytoma (vascular spiradenomas).
 **The location often speaks against glomus tumour.