RESUMO
The Koebner phenomenon, described by Koebner in 1876, represents the appearance of isomorphic skin lesions on the unaffected skin of patients suffering from certain skin diseases. The mechanism of the Koebner phenomenon is not yet clear, but cytokines such as basic fibroblast growth factor may be involved. Several types of injury can trigger the Koebner phenomenon, such as irritation, physical injury, surgical wound, and sunburn or radiation therapy. We report a case of recurrent Koebner phenomenon in psoriasis in a 27-year-old man, which developed after several skin grafts.
Assuntos
Adulto , Humanos , Citocinas , Fator 2 de Crescimento de Fibroblastos , Complicações Intraoperatórias , Psoríase , Dermatopatias , Pele , Queimadura Solar , Transplantes , Ferimentos e LesõesRESUMO
Segmental neurofibromatosis is a rare skin disorder characterized by neurofibromas and/or cafe-au-lait spots, limited to one dermatome of the body1. This disorder was first described by Gammel2 in 1931. The neurofibromas of segmental neurofibromatosis are commonly occupied by either a thoracic or a cervical dermatome and are unilateral, occuring more often on the right side than the left in young adults. According to Korean Dermatologic literature, 11 cases of segmental neurofibromatosis were reported. Among them, 7 cases showed unilateral involvement and 4 cases showed bilateral dermatomal involvement. We report a case of segmental neurofibromatosis which developed in a 76-year-old female. The skin lesions were situated on the left parietal scalp of the C2 dermatome, and had not been previously reported. We recommended surgical excision, but the patient refused further treatment.
Assuntos
Idoso , Feminino , Humanos , Adulto Jovem , Manchas Café com Leite , Neurofibroma , Neurofibromatoses , Neurofibromatose 1 , Rabeprazol , Couro Cabeludo , PeleRESUMO
Hibernoma is a rare slowly growing painless subcutaneous neoplasm, and predominates in the scapular and interscapular region, mediastinum, and upper thorax. Microscopically, hibernomas display a distinct lobular pattern and are composed of cells with varying degrees of differentiation, ranging from uniform, round to ovoid, granular eosinophilic cells to multivacuolated cells with multiple, small lipid droplets and centrally placed nuclei. We report a case of hibernoma occurred on the right scapular region in a 33-year-old man.