Difference between revisions of "Melanocytic lesions"

Melanocytic lesions (view source)

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 ====Intradermal melanocytic nevus====
-<pre>
+{{Main|Intradermal nevus}}
-SKIN LESION, BACK, PUNCH BIOPSY:
-- BENIGN INTRADERMAL NEVUS.
-</pre>
-=====Adipocytes present=====
-<pre>
-SKIN LESION, BACK, PUNCH BIOPSY:
-- BENIGN INTRADERMAL NEVUS WITH MATURE ADIPOCYTES.
-</pre>
-=====Clinically suspicious=====
-<pre>
-SKIN LESION, LEFT UPPER ARM, PUNCH BIOPSY:
-- BENIGN INTRADERMAL NEVUS, INCOMPLETELY EXCISED.
-COMMENT:
-HMB-45 marks very rare superficial cells. Ki-67 staining does not show apparent melanocyte
-staining. MITF marks the melanocytes and demonstrates maturation of the melanocytes with depth.
-</pre>
-=====Micro=====
-The sections show melanocytes in the dermis separated from the epidermis by a Grenz zone.  The lesion is symmetrical in its architecture and pigment distribution.  Superficially, melanocytes are in nests.  Melanocytes mature with depth. No mitotic activity is appreciated.
-The lesion is completely excised in the plane of section.
-======IDN with congenital features======
-The sections show melanocytes in the dermis separated from the epidermis by a Grenz
-zone. The lesion is symmetrical in its architecture. Superficially, melanocytes are in
-nests. Melanocytes mature with depth and track along adnexal structures.  No mitotic
-activity is appreciated. The lesion is incompletely excised in the plane of section.
 ==Congenital-pattern nevus==