Rao P M, Wittenberg J, Lawrason J N
Department of Radiology, Massachusetts General Hospital, Boston 02114, USA.
Radiology. 1997 Sep;204(3):713-7. doi: 10.1148/radiology.204.3.9280248.
To determine the changes in the computed tomographic (CT) appearance of primary epiploic appendagitis.
Clinical records and CT scans were reviewed in 10 patients who were initially suspected of having diverticulitis or appendicitis but were later determined to have primary epiploic appendagitis. The scans were obtained at the time of presentation and at follow-up 1-84 weeks later.
Initial CT characteristics included mean size of 14 x 21 mm, oval (n = 9) or round (n = 1) shape, mean attenuation of -53 HU, visceral (n = 10) or parietal (n = 7) peritoneal thickening, periappendageal fat stranding (n = 10), adjacent bowel wall thickening (n = 4) or compression (n = 2), and central high-attenuating dot (n = 2). Follow-up CT characteristics included residual abnormality (n = 9); mean size of 10 x 15 mm; oval (n = 6), round (n = 2), or indistinct (n = 1) shape; mean attenuation of -68 HU; visceral (n = 5) or parietal (n = 3) peritoneal thickening; periappendageal fat stranding (n = 1); and central high-attenuating dot (n = 1). CT characteristics of the remnant lesion included smaller lesion with fat attenuation (n = 6), nugget with soft-tissue attenuation (n = 2), and nondescript fat stranding (n = 1).
Awareness of the CT appearance of acute and healing primary epiploic appendagitis may help in the differential diagnosis of pericolonic abnormality.
确定原发性网膜附件炎的计算机断层扫描（CT）表现变化。
回顾了10例最初怀疑患有憩室炎或阑尾炎但后来确诊为原发性网膜附件炎患者的临床记录和CT扫描结果。扫描在就诊时及1 - 84周后的随访时进行。
初始CT特征包括平均大小为14×21 mm，椭圆形（n = 9）或圆形（n = 1），平均衰减值为 - 53 HU，脏层腹膜（n = 10）或壁层腹膜（n = 7）增厚，附件周围脂肪条索状影（n = 10），相邻肠壁增厚（n = 4）或受压（n = 2），以及中央高密度点状影（n = 2）。随访CT特征包括残留异常（n = 9）；平均大小为10×15 mm；椭圆形（n = 6）、圆形（n = 2）或边界不清（n = 1）；平均衰减值为 - 68 HU；脏层腹膜（n = 5）或壁层腹膜（n = 3）增厚；附件周围脂肪条索状影（n = 1）；以及中央高密度点状影（n = 1）。残留病变的CT特征包括脂肪衰减的较小病变（n = 6）、软组织衰减的小结节（n = 2）和不明确的脂肪条索状影（n = 1）。
了解急性和愈合期原发性网膜附件炎的CT表现可能有助于结肠周围异常的鉴别诊断。
