Inflammatory pseudotumor of the omentum in contrast-enhanced ultrasound

Hajo Findeisen1, Christina Westhoff2, Christoph Friedrich Dietrich3, Corinna Trenker4, Amjad Alhyari1, Ehsan Safai Zadeh1, Christian Görg1

Affiliation and address for correspondence
J Ultrason 2023; 23: e32–e34
DOI: 10.15557/JoU.2023.0006

Aim of the study: Inflammatory pseudotumor is a rare benign tumor that can occur at various body sites. Due to its rare occurrence and histological variety radiological data is heterogeneous and limited. Case description: We present a case of a 71-year-old man with inflammatory pseudotumor of the omentum. Contrast-enhanced ultrasound perfusion pattern showed homogeneous, isoechoic enhancement in the arterial phase with a washout phenomenon in the parenchymal phase, mimicking a peritoneal carcinomatosis. Conclusions: Inflammatory pseudotumor represents a rare, but important benign differential diagnostic option when considering a malignant disorder. Contrast-enhanced ultrasound is helpful in identifying vital tissue for a targeted biopsy for subsequent histological examination that is essential for the exclusion of malignancy.

inflammatory pseudotumor; CEUS; contrast-enhanced ultrasound; omentum; IPT