Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, College of Medicine and School of Medical Technology, Chang Gung University, Taoyuan, Taiwan.
Clin Radiol. 2010 Mar;65(3):223-9. doi: 10.1016/j.crad.2009.11.010. Epub 2010 Jan 20.
To document the computed tomography (CT) and magnetic resonance imaging (MRI) features of acinar cell carcinoma of the pancreas and to correlate them with pathological findings to determine the unique imaging manifestations of this rare subtype tumour of the pancreas.
From January 1986 to August 2008, six patients (five men and one woman, mean age 61.3 years) with histologically proven acinar cell carcinoma of the pancreas underwent CT (n=6) and MRI (n=4) examinations. The imaging features of each tumour were documented and compared with pathological findings.
The tumours were distributed in the head (n=4), body (n=1), and tail (n=1) of the pancreas. Four masses (67%) were uniformly or partially well-defined with thin, enhancing capsules. Central cystic components were found in five tumours (83%). Two tumours (33%) exhibited intratumoural haemorrhage, and one tumour (17%) had amorphous intratumoural calcification. In both CT and MRI, the tumours enhanced less than the adjacent normal pancreatic parenchyma. The signal intensity on MRI was predominantly T1 hypointense and T2 iso- to hyperintense.
Acinar cell carcinoma of the pancreas has distinct imaging features, and both CT and MRI are useful and complementary imaging methods.
描述胰腺腺泡细胞癌的计算机断层扫描（CT）和磁共振成像（MRI）特征，并将其与病理结果相关联，以确定这种胰腺罕见亚型肿瘤的独特影像学表现。
从 1986 年 1 月至 2008 年 8 月，6 名经组织学证实的胰腺腺泡细胞癌患者（5 名男性，1 名女性，平均年龄 61.3 岁）接受了 CT（n=6）和 MRI（n=4）检查。记录每个肿瘤的影像学特征，并与病理结果进行比较。
肿瘤分布在胰腺的头部（n=4）、体部（n=1）和尾部（n=1）。4 个肿块（67%）具有均匀或部分清晰的薄增强包膜。5 个肿瘤中有中央囊性成分（83%）。2 个肿瘤（33%）表现为肿瘤内出血，1 个肿瘤（17%）有不定形肿瘤内钙化。在 CT 和 MRI 上，肿瘤的增强程度均低于相邻的正常胰腺实质。MRI 上的信号强度主要为 T1 低信号和 T2 等至高信号。
胰腺腺泡细胞癌具有独特的影像学特征，CT 和 MRI 都是有用且互补的影像学方法。
