An atypical pigmented lesion

An atypical pigmented lesion

BACKGROUND The dermatoscopic features of facial lentigo maligna (LM), facial lentigo maligna melanoma (LMM) and acral lentiginous melanoma (ALM) have been well described. This is the first description of the dermatoscopic appearance of a clinical series of cutaneous non-facial non-acral lentiginous growth pattern melanomas. OBJECTIVE To describe the dermatoscopic features of a series of cutan...

An atypical pigmented lesion—Answer

An atypical pigmented lesion of the nose

A 56-year-old Caucasian woman, with skin phototype III, presented with an asymptomatic, slow-growing, gray-black plaque on her nose. The lesion had appeared almost 6 months prior, was 10 × 5 mm in size and presented with a paler, raised and scaly central area (Figure 1). This area could be hardly differentiated from ulceration, however, that was excluded on histology. Dermatoscopy with a non-co...

An atypical pigmented lesion on the nose—Answer

PCSCC is a variant of invasive squamous cell carcinoma, with less than 20 cases reported, to our knowledge, in the English literature [1,2]. PCSCC had been more often reported to occur in the oral mucosa and conjunctiva [3]. Pigmentation is probably due to cytokines secreted by tumoral cells that stimulate melanocytes to produce melanin [4]. In some cases, PCSCC may be the malignant progression...

An irregular pigmented lesion on the back

An 87-year-old woman with a history of multiple basal cell carcinomas presented to a follow-up visit referring a pigmented, slowly growing lesion on her right scapula that had been present for one year. Physical examination revealed an irregular 12 x 5 mm well circumscribed pigmented lesion with an elevated keratotic surface (Figure 1). The dermoscopic evaluation revealed a multicomponent patte...