Our study identifies the presence of shiny white to red areas, SFTs and "erosions" as main dermoscopic criteria of superficial BCC. Other dermoscopic features, such as leaf-like areas, arborizing telangiectasias, blue-gray globules and large blue-gray ovoid nests, are not strongly associated with the diagnosis of superficial BCC but they are useful in the differential diagnosis from other pigmented and nonpigmented skin lesions.

No abstract

Dermatofibroma (DF) is a common benign fibrohistiocytic lesion which presents with a wide variety of clinicopathological features. Generally, the clinical diagnosis is easy, but differentiating it from other cutaneous tumors could be difficult in atypical cases and rare variants. We may find at least four different histopathological variants of DF; more than one of which may be present in a single tumor. Hemosiderotic DF is a variant composed of numerous small vessels, extravasated erythrocytes, and intra- and extracellular hemosiderotic deposits. The differential diagnosis may comprise melanoma as well as other melanocytic and nonmelanocytic tumors. We report the case of a 38-year-old man who presented with a hemosiderotic DF on the abdomen.

We describe a 31-year-old woman with an asymptomatic solitary red plaque on the back which measured 2 × 1 cm. The patient reported that it had been growing for a few months. Upon dermoscopic examination, multiple well-demarcated red globules were seen. At the periphery a fine pigment network was present. The lesion was excised and examined histopathologically. The specimen showed proliferation of irregular branching venules with inconspicuous lumina. The tumor cells lacked cellular atypia. Microvenular hemangioma is a rare, slowly growing, benign vascular tumor. It usually presents on the trunk or the extremities of young to middle-aged adults. Microvenular hemangioma is a benign vascular tumor with distinct dermoscopic and histopathological features which enable it to be distinguished from other vascular neoplasms.

We report the case of a 13-year-old girl with a 7 mm plaque on the trunk. The mother of the patient reported that the lesion developed at the age of 3 and it was characterized by a slow growth. In 2003 a dermoscopic examination was executed and a diagnosis of dermical nevus was made. On examination at our department, a red-pinkish plaque with two small areas of ulceration was found on the anterior part of the trunk. At dermoscopic examination we observed vascular pattern with linear-irregular vessels, multiple blue-gray dots, blue-gray ovoid nests, and ulceration. A diagnosis of basal cell carcinoma was made and confirmed by histopathologic examination. The histopathologic specimen showed nests or lobules of basalioid cells associated with a surrounding loose fibromucinous stroma; two patterns were observed: adenoid-cystic and fibroepithelial. Some fibroepithelioma of Pinkus-like areas were present, where the fibrovascular stroma was very abundant with an arborizing network of long, thin cords of basaliod cells that extended downward from the epidermis and created a fenestrating pattern. The lesion was surgically excised. Basal cell carcinoma occurs rarely in children and is most often associated with an underlying condition that predisposes patients to the development of malignancy that was not present in our case.