RESUMO
Gastrointestinal stromal tumor is rare digestive tract mesenchymal tumor, most often in the wall of the stomach. It is a benign neoplasm, but it can become malignant if not treated. We report a case of gastrointestinal stromal tumor that was discovered after abdominal ultrasonography during staging of a patient with primary cutaneous amelanotic melanoma. Mutation in the tyrosine kinase receptor could explain the development of two types of tumors in the same patient.
Assuntos
Neoplasias Gastrointestinais/diagnóstico , Tumores do Estroma Gastrointestinal/diagnóstico , Melanoma Amelanótico/diagnóstico , Neoplasias Primárias Múltiplas/diagnóstico , Neoplasias Cutâneas/diagnóstico , Biópsia , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Tomografia por Raios XRESUMO
Abstract: Gastrointestinal stromal tumor is rare digestive tract mesenchymal tumor, most often in the wall of the stomach. It is a benign neoplasm, but it can become malignant if not treated. We report a case of gastrointestinal stromal tumor that was discovered after abdominal ultrasonography during staging of a patient with primary cutaneous amelanotic melanoma. Mutation in the tyrosine kinase receptor could explain the development of two types of tumors in the same patient.
Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Cutâneas/diagnóstico , Melanoma Amelanótico/diagnóstico , Tumores do Estroma Gastrointestinal/diagnóstico , Neoplasias Gastrointestinais/diagnóstico , Neoplasias Primárias Múltiplas/diagnóstico , Biópsia , Imuno-Histoquímica , Tomografia por Raios XRESUMO
Proliferating pilomatricoma is proliferative, rare tumor variant of pilomatricoma. It is a benign neoplasm of hair matrix that can have potentially involve local recurrence. We report the case of a 60-year-old man who presented an asymptomatic nodule on the scalp. Histological exam demonstrated a basaloid epithelium at the periphery, filled with eosinophilic cornified material containing shadow cells. The tumor was excised and there was no evidence of recurrence one year later.
Assuntos
Doenças do Cabelo/patologia , Pilomatrixoma/patologia , Neoplasias Cutâneas/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Pele/patologia , Resultado do Tratamento , Carga TumoralRESUMO
Proliferating pilomatricoma is proliferative, rare tumor variant of pilomatricoma. It is a benign neoplasm of hair matrix that can have potentially involve local recurrence. We report the case of a 60-year-old man who presented an asymptomatic nodule on the scalp. Histological exam demonstrated a basaloid epithelium at the periphery, filled with eosinophilic cornified material containing shadow cells. The tumor was excised and there was no evidence of recurrence one year later.
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