Case Number : Case 1802 - 25 April - Dr Uma Sundram Posted By: Guest

To mark it only being 8 months to Christmas, here is Dr Uma Sundram's Spot Diagnosis Case for you to unwrap.

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The lesion is not fully excised so as we always remark we should be cautious on the report. I see an entirely dermal melanocytic proliferation with symmetrical silhouette, degenerative changes and angiectatic vessels. There is a banal nevus component at the periphery of the lesion and a central crowded more proliferative zone of spindle cells richly pigmented, without clear mitoses that matures in the deep portion. I find it hard to classify but I think I would call this a combined nevus banal and cellular blue/DPN. I ultimately favor benign based on the pictures alone.

Favoring benign, mostly combined

Agree, favor benign, combined (cellular blue+ congenital)

Favour benign, combined naevus banal intradermal + DPN

Dermal congenital nevus, with giant cells

Melanocytic nevus with phenotypic heterogeneity.

Yes. Agree. There is a phenotypic heterogeneity: a plexiform Spitz component in the central area.

On 25/04/2017 at 15:22, Raul Perret said:

The lesion is not fully excised so as we always remark we should be cautious on the report. I see an entirely dermal melanocytic proliferation with symmetrical silhouette, degenerative changes and angiectatic vessels. There is a banal nevus component at the periphery of the lesion and a central crowded more proliferative zone of spindle cells richly pigmented, without clear mitoses that matures in the deep portion. I find it hard to classify but I think I would call this a combined nevus banal and cellular blue/DPN. I ultimately favor benign based on the pictures alone.

Agree

Combined nevus.