[The subcutaneous mucormycosis due to Lichtheimia corymbifera: A case report in an immunocompetent child]. / Les mucormycoses sous-cutanées àLichtheimia corymbifera : à propos d'un cas chez un enfant immunocompétent.

Mucormycosis due to Lichtheimia (ex Absidia) corymbifera is a rare fungal infection, occurring most often in an environment of immune deficiency, rarely in an immunocompetent patient. It comes in different clinical forms, frequently misleading, hence the interest of a pathological and mycological examination that allows the diagnosis of certainty. The management of this condition should be introduced early because it affects the functional prognosis of the patient. In this study, the authors report a case of mucormycosis in a 10-year-old child, and with clinical immunocompetent less severe than the cases reported in the literature.

[Congenital vascular leiomyosarcoma]. / Léiomyosarcome vasculaire congénital.

INTRODUCTION: Vascular leiomyosarcoma is a conjunctive tumor which develops in the smooth muscle cells of vessel walls. Proximal vascular leiomyosarcoma involving the large vessels and peripheral vascular leiomyosarcoma which develops in the vascular pedicles of the limbs and subcutaneous vessels are distinguished. OBSERVATION: We report the case of a 6-year-old child who presented from birth a peripheral vascular leiomyosarcoma. The immunohistochimic study revealed tumor cell expression vimentin, SMA and desmine. In spite of wide surgical resection with associated chemotherapy, the child's clinical status deteriorated. DISCUSSION: Vascular leiomyosarcoma is a rare tumor occurring exceptionally in children. Prognosis depends on the presence of local recurrence and metastatic spread.