Davey M S, Cohen M D
Department of Radiology, James Whitcomb Riley Hospital for Children, Indiana University Medical Center, Indianapolis 46202-5200, USA.
Radiol Clin North Am. 1996 Jul;34(4):717-42.
Gastrointestinal malignancies in children are a rare and diverse group of neoplasms. Presenting signs and symptoms are nonspecific, but age at presentation and the presence of an elevated serum alpha-fetoprotein can provide helpful clues in tailoring a differential diagnosis. The role of imaging is to localize and characterize the tumor and define resectability. Plain films, ultrasound, and CT scans are the primary modalities employed, with MR imaging utilized in equivocal cases.
儿童胃肠道恶性肿瘤是一组罕见且多样的肿瘤。其呈现的体征和症状不具特异性，但发病年龄以及血清甲胎蛋白升高的情况可为制定鉴别诊断提供有用线索。影像学检查的作用是对肿瘤进行定位和特征描述，并确定其可切除性。平片、超声和CT扫描是主要的检查方式，在诊断不明确的病例中则使用磁共振成像。
