The central dot sign of epiploic appendagitis

Double acute appendicitis: cecal and epiploic; literature review of a case report

“…5 The classic description in abdominal tomography is an ovoid lesion with a density of fatty tissue, 1-4 cm, adjacent to the antimesenteric border of the colon; Sometimes it is possible to observe the hyperdense ring sign consisting of a thin annular hyper density, 2-3 mm thick that represents the inflamed visceral peritoneum surrounding the epiploic appendix, and the central point sign or dot sign as a punctate or hyperdense linear image in the center of the lesion that represents thickened or thrombosed central vessels. 6,7 In the present case, no findings suggestive of appendagitis were reported in the two ultrasound scans performed on the patient, and no CT of the abdomen was performed due to its unavailability.…”

Epiploic appendagitis: a commonly undiagnosed non‐surgical acute abdominal emergency

“…Classic CT findings of epiploic appendagitis include (i) a fat‐density ovoid lesion (hyperattenuating ring sign), (ii) mild bowel wall thickening and (iii) a central high‐attenuation focus within the fatty lesion (central dot sign) 1,12,13 …”

“…Classic CT findings of epiploic appendagitis include (i) a fat-density ovoid lesion (hyperattenuating ring sign), (ii) mild bowel wall thickening and (iii) a central high-attenuation focus within the fatty lesion (central dot sign). 1,12,13 Ultrasound imaging at the point of maximal tenderness shows epiploic appendagitis as an oval, noncompressible mass with no central blood flow depicted on colour Doppler, and the hyperechoic mass will usually be surrounded by a hypoechoic peripheral ring; moreover, the ultrasound can be used to evaluate the presence of a central dot-shaped, hyperdense focus, which suggests a thrombosed vein. [14][15][16] Epiploic appendagitis is a self-limiting disease managed conservatively with analgesia.…”

Acute Epiploic Appendagitis: A Nonsurgical Abdominal Pain

“…The typical CT findings in cases of acute epiploic appendagitis include the presence of rounded or ovoid fat-density mass adjacent to the colonic wall, usually less than 5 cm in diameter (typical diameter range: 1.5–3.5 cm) [11, 19], the “hyperattenuating/hyperdense ring sign” [24], a hyperdense enhancing rim (thickness of 1-3 mm) surrounding the lesion, and the perilesional inflammatory fat stranding [11]. A pathognomonic CT finding of epiploic appendagitis is the “central dot sign”, characterized by a central, ill-defined round area of high attenuation within the fat-density mass [25, 26]. This sign is also known as the “dense central vessel sign” due to engorged or thrombosed vessel within the inflamed epiploic appendage [27].…”