[Retronychias]. / Rétronychies.

Retronychia usually affects young female (between 20 and 30 years old). It starts with the disruption of the longitudinal growth of the nail, because of a microtraumatic insult. Others diagnostic criteria: proximal nail plate rose upward proximal nailfold, pachyonychia and dyschromia, paronychia. Management consists of total nail avulsion.

[Superficial angiomyxoma: report of four cases, including two subungueal tumors]. / Angiomyxome superficiel: a propos de quatre cas, dont deux lésions sous-unguéales.

We report four cases of superficial angiomyxomas, including two cutaneous tumors and two subungueal tumors. Histological analysis revealed a recently described tumor, so called superficial angiomyxoma. This is a myxoid paucicellular tumor lobulated and poorly circumbscribed, containing numerous small blood vessels surrounded by a mixed inflammatory cell infiltrate with notable neutrophils. Those tumors are positive for CD34. The differential diagnosis includes myxoid neurothecoma, myxoid neurofibroma and, for ungueal tumors, superficial acral fibromyxoma.