Multislice Spiral CT Features in Gastric Heterotopic Pancreas / 中国医学影像学杂志

ABSTRACT

PurposeTo evaluate multislice spiral CT (MSCT) imaging features of gastric heterotopic pancreas.Materials and Methods MSCT features in 15 patients with pathology confirmed gastric heterotopic pancreas were retrospectively reviewed, including location, shape and border, size, CT value of gastric heterotopic pancreas and the normal pancreas.Results Twelve lesions were located in the gastric antrum, 11 were in the greater curvature. Intraluminal growth was found in 11 cases. 10 lesions were ill-defined. The mean longitudinal diameter (LD)/short diameter (SD) of the lesion was 1.89. The measurement showed high agreement with 0.99 ICC of LD and 0.98 ICC of SD. All lesions showed homogeneous and continuous enhancement, of which 4 cases showed surface dimpling. The plain and the portal vein phase CT values of gastric heterotopic pancreas and the normal pancreas had no significant differences (t=0.402 and—1.050, P>0.05), while the arterial phase CT value between gastric heterotopic pancreas and the normal pancreas were significantly different (t=3.13,P<0.05).Conclusion Gastric heterotopic pancreas demonstrates typical imaging features on MSCT which are helpful in the diagnosis and differential diagnosis.