Dermatoscopy: A multicolored lesion on the forehead-Quiz Answer.

Below find the answer to the quiz by Şenel presented in the previous issue of Dermatology Practical & Conceptual (http:dx.doi.org/10.5826/dpc0403a14).

Diagnosis: Pigmented basal cell carcinoma.

Discussion

Basal cell carcinoma (BCC) is the most frequent type of skin cancer in humans. Non-pigmented BCCs are much more prevalent than pigmented BCCs. Sometimes it could be difficult to distinguish a pigmented BCC from a melanoma [1]. Menzies et al. suggested a dermatoscopic method with a sensitivity of 93% and a specificity of 89% for diagnosing pigmented BCCs (See Table) [2,3].

TABLE.

Dermatoscopic criteria for pigmented BCCs (adapted) [2,3].

Negative feature: Absence of pigmented network
+	At least one of the following:
	Focal ulceration
	Spoke wheel-like areas
	Leaf-like areas or structureless areas in the periphery lesion
	Multiple blue-gray globules
	Large blue-gray ovoid nests
	Linear and arborizing vessels

The correct answer to the Dermatoscopy quiz in the April 2014 issue (http://dx.doi.org/10.5826/dpc.0403a14) is pigmented basal cell carcinoma

Congratulations to Dr. Urmi Khanna, who was the first to send us the correct answer!