Abstract
We report here a rare case of adenocarcinoma arising from segmental adenomyomatosis of the gallbladder itself. CT images showed segmental annular wall thickening of the gallbladder body with regional lymph node enlargement, which could not exclude adenomyomatosis associated with malignancy. Therefore, we performed MRI and PET/CT for further evaluation. T2 weighted MRI revealed multiple tiny intramural cystic lesions in the focal wall thickening of the gallbladder, suggesting adenomyomatosis. However, PET/CT showed increased activity in the lesion of the gallbladder and regional lymph node, suggesting malignancy, which was pathologically confirmed as adenocarcinoma arising from adenomyomatosis.
저자들은 담낭의 분절형 선근종증 자체에서 발생한 매우 드문 선암의 증례를 보고한다. CT 소견에서 담낭 벽의 국소비후와 국소림프절의 종대를 보여 악성종양을 배제하기 어려워, MR 영상과 PET/CT를 시행하였다. T2 강조 MRI에서 국소비후된 담낭 벽 내 선근종증을 시사하는 미세한 낭성 병변들이 발견되었으나, PET/CT에서는 병변부위와 국소림프절에 양성반응을 보여 악성종양이 의심되었고, 병리소견에서 선근종증에서 발생한 선암으로 확진되었다.