RESUMO
Superficial acral fibromyxoma (SAFM) is a rare soft tissue tumor most often located in the ungual region of the fingers and toes. This tumor was first described in 2001, and since then very few cases have been reported. We present the case of a 35-year-old male with a SAFM located in the toe, with involvement of the nail and erosion of the distal phalanx. The lesion was surgically removed, and the histopathological study confirmed the diagnosis of SAFM. The differential diagnosis must be established with other myxoid tumors and with those lesions showing a predilection for the distal portions of the limbs. After 2 years, the patient remains disease free, with no disability of any kind.
Assuntos
Fibroma/diagnóstico , Doenças do Pé/diagnóstico , Dedos do Pé , Adulto , Antígenos CD34/metabolismo , Diagnóstico Diferencial , Fibroma/metabolismo , Fibroma/patologia , Fibroma/cirurgia , Doenças do Pé/metabolismo , Doenças do Pé/patologia , Doenças do Pé/cirurgia , Humanos , Imuno-Histoquímica , MasculinoRESUMO
Presentation of a case of small intestine primary angiosarcoma in a 70-year-old male. There is question of an extremely rare tumor in the gastrointestinal tract. Its symptomatology is similar to that of other tumors in the small intestine. An immunohistochemical study is usually essential for its anatomopathological diagnosis. The diagnosis is generally arrived at in its advanced stages, and that makes for a bad prognosis. The bibliography has been revised from this case on.
Assuntos
Hemangiossarcoma/patologia , Neoplasias do Íleo/patologia , Idoso , Hemangiossarcoma/diagnóstico por imagem , Hemangiossarcoma/cirurgia , Humanos , Neoplasias do Íleo/diagnóstico por imagem , Neoplasias do Íleo/cirurgia , Masculino , RadiografiaRESUMO
The participation of the perineurial cell in peripheral nerve tumors is the subject of much debate. The case of a 75-year-old female with a soft tissue tumor on her left shoulder is presented. The tumor had histological, ultrastructural, and immunohistochemical characteristics of a pure perineurial cell neoplasm. Ultrastructurally, distinctive ribosome-lamella complexes were found in the cytoplasm of the perineurial cells. This may be the first time that these structures have been described in perineurioma.
Assuntos
Membranas Intracelulares/ultraestrutura , Neurilemoma/ultraestrutura , Neurofibrilas/ultraestrutura , Neoplasias do Sistema Nervoso Periférico/ultraestrutura , Ribossomos/ultraestrutura , Idoso , Feminino , Humanos , Articulação do Ombro/ultraestruturaRESUMO
An unusual case of mediastinal synovial sarcoma with secondary invasion of the oesophagus simulating an intra-oesophageal mass is reported. The location and radiological appearance of this tumour are exceptional, and, to the authors' knowledge, have not been reported previously.