RESUMO
BACKGROUND: Germ cell tumors are tumors composed of tissues derived from more than one of the three germinal layers. They are more common in the testes and ovaries, but can present in many different regions in the midline, including the sacral region, retroperitoneum, mediastinum, and brain. Testicular germ cell tumors generally metastasize to the retroperitoneum, lungs, and brain; metastases to soft tissue are very rare. CASE PRESENTATION: Here we describe a case of a single soft-tissue mass in the thigh of a 27-year-old man, with histology showing areas of mature teratoma tissues derived from the ectodermal and mesodermal lineages, and areas of immature teratoma tissue composed of small undifferentiated cells, with primitive neuroectodermal differentiation foci forming neuroepithelial elements - thus classified as immature teratoma. The patient had no other clinical or radiological evidence of involvement, besides the lymph nodes. CONCLUSION: The case presented suggests a rare and unexpected primary immature teratoma of the thigh.
Assuntos
Neoplasias de Tecidos Moles/patologia , Teratoma/patologia , Adulto , Biomarcadores Tumorais/análise , Biópsia , Diferenciação Celular , Linhagem da Célula , Evolução Fatal , Humanos , Imuno-Histoquímica , Masculino , Recidiva Local de Neoplasia , Neoplasias de Tecidos Moles/química , Neoplasias de Tecidos Moles/cirurgia , Teratoma/química , Teratoma/secundário , Teratoma/cirurgia , Coxa da Perna , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
A 13-year-old boy presented congenital, raised, yellowish colored plaques with fibroelastic consistency, which were velvety in appearance, alopecic, with clearly defined limits and sulci or well-marked meandering invaginations, a cerebriform appearance on the upper part of the right ear, accompanied by alopecia in the temporomandibular region-parietal. The lesion was asymptomatic. Histopathologic examination revealed acanthosis, hyperkeratosis, papillomatosis and follicular plugging in the epidermis. The upper dermis showed underdeveloped hair follicles with sebaceous glands, consistent with sebaceous nevus. There were no skeletal, cardiological, ophthalmological or neuropsychomotor changes; nor were there any records of relevant pathologies in the family history. The patient complained of his appearance, experiencing aesthetic and social issues. Following a diagnosis of cerebriform nevus sebaceous, complete excision was performed with excellent aesthetic results.
Assuntos
Neoplasias de Cabeça e Pescoço/patologia , Nevo/patologia , Couro Cabeludo/patologia , Neoplasias das Glândulas Sebáceas/patologia , Neoplasias Cutâneas/patologia , Adolescente , Folículo Piloso/patologia , Humanos , Masculino , Glândulas Sebáceas/patologiaRESUMO
Abstract A 13-year-old boy presented congenital, raised, yellowish colored plaques with fibroelastic consistency, which were velvety in appearance, alopecic, with clearly defined limits and sulci or well-marked meandering invaginations, a cerebriform appearance on the upper part of the right ear, accompanied by alopecia in the temporomandibular region-parietal. The lesion was asymptomatic. Histopathologic examination revealed acanthosis, hyperkeratosis, papillomatosis and follicular plugging in the epidermis. The upper dermis showed underdeveloped hair follicles with sebaceous glands, consistent with sebaceous nevus. There were no skeletal, cardiological, ophthalmological or neuropsychomotor changes; nor were there any records of relevant pathologies in the family history. The patient complained of his appearance, experiencing aesthetic and social issues. Following a diagnosis of cerebriform nevus sebaceous, complete excision was performed with excellent aesthetic results.
Assuntos
Humanos , Masculino , Adolescente , Couro Cabeludo/patologia , Neoplasias das Glândulas Sebáceas/patologia , Neoplasias Cutâneas/patologia , Neoplasias de Cabeça e Pescoço/patologia , Nevo/patologia , Glândulas Sebáceas/patologia , Folículo Piloso/patologiaRESUMO
A 13-year-old boy presented congenital, raised, yellowish colored plaques with fibroelastic consistency, which were velvety in appearance, alopecic, with clearly defined limits and sulci or well-marked meandering invaginations, a cerebriform appearance on the upper part of the right ear, accompanied by alopecia in the temporomandibular region-parietal. The lesion was asymptomatic. Histopathologic examination revealed acanthosis, hyperkeratosis, papillomatosis and follicular plugging in the epidermis. The upper dermis showed underdeveloped hair follicles with sebaceous glands, consistent with sebaceous nevus. There were no skeletal, cardiological, ophthalmological or neuropsychomotor changes; nor were there any records of relevant pathologies in the family history. The patient complained of his appearance, experiencing aesthetic and social issues. Following a diagnosis of cerebriform nevus sebaceous, complete excision was performed with excellent aesthetic results.
.Assuntos
Adolescente , Humanos , Masculino , Neoplasias de Cabeça e Pescoço/patologia , Nevo/patologia , Couro Cabeludo/patologia , Neoplasias das Glândulas Sebáceas/patologia , Neoplasias Cutâneas/patologia , Folículo Piloso/patologia , Glândulas Sebáceas/patologiaRESUMO
Plasma cell cheilitis is an extremely rare disease, characterized by erythematous-violaceous, ulcerated and asymptomatic plaques, which evolve slowly. The histological characteristics include dermal infiltrate composed of mature plasmocytes. We report a case of Plasma cell angular cheilitis in a 58-year-old male, localized in the lateral oral commissure.