Daniela Burguêz, Resident Physician in Orthopedics and Traumatology at Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Sector of Orthopedics and
Traumatology, Porto Alegre, province of Rio Grande do Sul, Brazil; Tel: 55 (51) 98466-8212,
Intravascular papillary endothelial hyperplasia or Masson’s tumor is a rare benign vascular pathology. It mainly aff ects lower limbs and is not related to the gender or age of the patients. Evaluation by clinical history and imaging exams can be confused with other soft tissue tumors. The purpose of this article is to describe a case attended at a university hospital in Porto Alegre, Brazil. In the present study, the authors report a case of a 54-year-old male patient with the presence of nodulation on the back of the right foot. After inconclusive biopsy, the treatment of choice was surgical resection of the tumor with free margins. Anatomopathological study of the surgical specimen was compatible with Masson’s tumor. A 6-month follow-up did not show any recurrence of the lesion. With this case, the authors wish to highlight this pathology among the diff erential diagnoses for soft tissue tumors.
Introduction
An intravascular papillary endothelial hyperplasia or Masson’s tumor is an uncommon benign vascular pathology. Since 1923, when Pierre Masson ????irst described this tumor, several articles have tried to de????ine its origin. Although several cases are related to pre-existing vascular injuries or a history of trauma, their etiology is unknown. Assessing the clinical history and imaging tests, it is dif????icult to differentiate it from malignant neoplasms, especially angiosarcoma. In most cases, complete resection of the lesion is necessary, and provides treatment and de????initive diagnosis of Masson’s tumor. The aim of this article is to describe a case of intravascular papillary endothelial hyperplasia treated at a university hospital in Porto Alegre and highlight the disease as a differential diagnosis for skin and subcutaneous tissue tumors that, clinically, may present similarly to malignant tumors.
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