Small round cell tumorが疑われた乳児耳下部石灰化上皮腫例

Abstract

Small round cell tumors are histopathologically characterized by proliferation of small, round, relatively undifferentiated cells. Small round cell tumors are generally malignant tumors, such as Ewing’s sarcoma, peripheral neuroectodermal tumor, rhabdomyosarcoma, synovial sarcoma, non-Hodgkin’s lymphoma, and Wilms’ tumor. Histopathological examination is usually to make a definitive diagnosis of this type of tumor.