Kaposiform hemangioendothelioma is a rare, locally aggressive vascular neoplasm that mainly occurs during childhood. the tumor is often located on the skin but may be deeper. The development of KHE in adults is very rare, and its evolution towards KMP is exceptional. The KMP is defined as the combination of a deep thrombocytopenia and a vascular tumor, usually a KHE or a tuftted angioma. It is a life threatening pathology, because of the major risk of bleeding, and compression of vital structure. A multidisciplinary approach to treatment has to be employed.

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Les lipomes sous-cutanés sont des tumeurs, très fréquentes qui siègent préférentiellement au niveau du cou et du tronc. Cependant, d´autres localisations peuvent se voir, bien qu´elles soient rares et inhabituelles, et le médecin doit penser au lipome, devant toutes tuméfactions sous cutanées y siégeant. Les auteurs rapportent 3 cas de localisations rares des lipomes, tout en détaillant le diagnostic et le traitement dont ces patients ont bénéficié. Ces localisations sont la première commissure interdigitale de la main, le doigt de pied et le canthus externe de l´œil.

Background : Solitary fibrous tumours rare spindle cell neoplasms, initially regarded as occurring exclusively within the thoracic cavity with a pleural origin. We report an unusual and rare case, of solitary fibrous tumor of the skin. Whose evolution has been marked by several recurrences after surgical excision Case Report: 49 year old man, with a dorsolumbar cutaneous tumor.