Teaching Cases

History

Well here is the first SCSA dermoscopy dirty dozen as proposed recently on the blog. This shows the creativity, hard work and imagination of Dr Greg Canning and I have put it up here as the inaugural Teaching Case on his behalf. The images,text and the art work are all his ideas.

The 1967 original “Dirty Dozen” starred Lee Marvin, and revolved around a major who conscripts twelve condemned soldier prisoners for a dangerous mission in WWII. Who suggested such a title for this anyway?

No such danger lurking here (or is there?)

12 lesions from day to day practice on which to offer an opinion, only half of which I diagnosed correctly prior to histology. It should be interesting to see what the majority think!

This quiz can be taken in it's original survey format at Survey Monkey or you can just follow the outline of this Teaching Case.
CASE 1. Lesion back, 15 yr old female with type 1 skin and already considerable damage (elastosis and freckling)on exposed areas.  Would you consider Banal compound nevus, Clear cell acanthoma, Amelanotic melanoma,Basal cell carcinoma or Other?

Question: What is your clinical diagnosis?

Answer: This was a halo nevus. The paler area around the nevus should have given this away.

Question: What is your dermatoscopic diagnosis?

Answer: The vessels might lead you to a diagnosis of basal cell carcinoma but it was a benign nevus with some inflammation from the regression process taking place.

Question: What might the histology show?

Answer: It depends on your clinical or dermatoscopic choice above but Histology was Halo Nevus with "regression in the naevus, and there is associated ingrowth of small blood vessels.

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