ABSTRACT
Melanocytic tumors including Spitz nevus and early melanoma, intraepidermal carcinoma, and clear cell acanthoma may show dotted vessels as the only dermoscopic vascular pattern. The clue to differentiating between these different entities lays, however, in the arrangement of vessels. The differential diagnosis between superficial basal cell carcinoma and early amelanotic or hypomelanotic melanoma may be challenging. The clinical and dermoscopic diagnosis of pyogenic granuloma should always be confirmed by histopathology. A common hallmark of malignant neoplasms is the presence of polymorphous vessels. Although dermoscopy often does not allow the differentiation between different types of malignant tumors, it aids in recognizing vascular polymorphism, which in consequence aids the correct management. More commonly, small amounts of pigment can be seen in hypomela-notic melanoma. Although nodular basal cell carcinoma is generally submitted for histopathological examination, the urgency of appointment would differ between basal cell carcinoma and nodular melanoma.
