Summary. A symmetrical deforming cutaneous sporotrichosis with verrucous lesions on both hands and of long Clinical duration is reported. The difficulties in making an etiological diagnosis are considered. Zusammenfassung. Es wird der Fall einer symmetrischen Sporotrichose mit ausgedehnten, deformierenden, verrukosen Veranderungen an beiden Händen mit langem Verlauf beschrieben. Es wird besonders auf die Schwierigkeiten einge‐gangen, eine ätiologische Diagnose zu stellen. cutaneous manifestations with lymphangitic satellite lesions and sometimes verrucous skin alterations were seen. Single, localized skin nodules or ulcers were occasionally found. Involvement of mucosae and of extracutaneous sites was not observed in the cases of sporotrichosis we examined. The unusual and extensive skin lesions and the difficulties of clinical diagnosis were motives to report this case.

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Histiocytic sarcomas are rare neoplasms with poor prognosis originating from histiocytic or dendritic cell clones and associated with haematological malignancies such as acute or chronic leukemias and lymphomas. We describe a case of a patient who developed a disseminated and extensive mucocutaneous histiocytic sarcoma during remission.