Nevus Oligemicus on the Breasts: A Report of 2 Cases

Nevus oligemicus: a case series

“…Secondarily, vasodilatation occurs in the superficial vascular plexus, provoking erythema 1,2 . Vascular motor function tests in both involved and normal skin are not altered, indicating a functional nature of this entity 1–3 …”

“…Continuous pressure, as the exerted by the belt over abdominal lesions, has also been considered as a causal factor. However, nevus oligemicus did not resolve with weight loss or pressure suppression 3 Table 1. shows all previous reported cases, the profession of the affected patients and the potential triggering factors in each case if any.…”

“…Pale after pressure occurs and there are not ischaemic signs on the adjacent skin. The temperature is at least 2°C minus than in the peripheral normal skin, which could be evidenced with a contact themometer 1–3 . These patches are usually asymptomatic.…”

“…Diagnosis should be made on clinical basis 2,3 . Histological examination reveals dilated papillary dermal capillaries, without increases or decreases in the number of normal vessels 2,3 . Nevertheless, skin biopsy is not necessary for the diagnosis 1 .…”

“…Differential diagnosis should include inflammatory erythemas (cellulitis, erysipela), capillary malformations, angiomas, erythrocyanosis, perniosis, livedo reticularis, livedo racemosa and fixed drug eruption. Skin temperature and clinical evolution could guide to the correct diagnosis 2,3 …”