Difference between revisions of "Melanocytic lesions"

Melanocytic lesions (view source)

228 bytes removed , 00:41, 17 October 2011

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 ===Microscopic===
-Features:<ref>need ref</ref>
+Features:
 *Symmetrical lesion.
-*"Matures" with depth - less cellular, less atypia.
+*"Matures" with depth
-*No destruction of surrounding structures.
+**Less cellular with depth
+**Less nuclear atypia with depth.
+**Smaller cells with depth.
 *Only in dermis '''key feature'''.
 **Otherwise it is something else, e.g. ''dermal nevus'', ''junctional nevus''.
+*Rare mitoses (superficial).
-===Microscopic===
+**No deep mitoses.
-*Basaloid cells mixed with squamous cells.
+*No destruction of surrounding structures.
-*Keratin-filled invaginations.
+*No nucleoli.
-*Horn cysts - intraepidermal, brown globule-like structures.
-**Melanocytes at the dermoepidermal junction.<ref>URL: [http://emedicine.medscape.com/article/1059477-overview http://emedicine.medscape.com/article/1059477-overview].</ref>
 ==Spitz nevus==