Intravascular endothelial hyperplasia, or Masson’s tumor, is a benign vascular lesion with no well-defined pathogenesis. The response to vascular damage is believed to be one of the main reasons for its development. It is a typically painless injury, solitary, with slow evolution. This report aims to describe a case of Masson’s tumor in an unusual place, the hallux nail matrix, and discuss its main characteristics.

Keywords: Hyperplasia; Hallux; Endothelium, Vascular.

The incidence of stoma complications ranges from 20-70%. Pseudoverrucous Epitheliomatous Hyperplasia (PEH) is a rare complication of the peristomal skin of unknown incidence, without protocol treatment, and with a significant impact on the patient's quality of life. There are numerous ways to treat peristomal lesions, mostly outpatient care. We report a case of peristomal PEH in which surgical intervention was performed using the shaving technique with very satisfactory aesthetic and functional results.

Keywords: Ileostomy; Colostomy; Hyperplasia