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小儿肝母细胞瘤(HB)是发生于婴儿和儿童的肝脏恶性肿瘤,较为少见,且易于误诊。本文对20例HB的手术切除标本进行临床病理分析,为临床诊治HB提供依据。1.病理检查:据肉眼观察,本组瘤体为圆形、椭圆形分叶状块型或巨块型,有的呈多结节型。直径2.5～20cm。切面呈灰白色或灰黄色,多数肿瘤与周围组织分界清楚,有假包膜及出血坏死灶。据显微镜检查。根据瘤细胞的分化程度及有无间叶成分,其可分为以下四型:①未分化型:瘤细胞小,分化最幼稚,核圆形,染色深,可见病理性核分裂相。有少量胞浆。呈弥漫或散在排列,有菊形团或
Pediatric hepatoblastoma (HB) is a liver malignancy that occurs in infants and children and is rare and misdiagnosed. In this paper, 20 cases of HB resected specimens for clinicopathological analysis, provide a basis for the clinical diagnosis and treatment of HB. 1. Pathological examination: According to the naked eye observation, the tumor of this group is round, oval lobular block or bulky block, and some showed multiple nodular. Diameter of 2.5 ~ 20cm. Section was gray or gray, most of the tumor and the surrounding tissue clear boundaries, there are fake capsule and hemorrhagic necrosis. According to microscopic examination. According to the degree of tumor cell differentiation and the presence or absence of leaf components, which can be divided into the following four types: ① undifferentiated type: small tumor cells, the most naive differentiation, nuclear round, deep staining, visible pathological mitotic. A small amount of cytoplasm. Was diffuse or scattered arrangement, there are daisy-shaped or