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Case Reports
. 2020 Sep 1;59(17):2117-2121.
doi: 10.2169/internalmedicine.4300-19. Epub 2020 May 26.

Lesser Omental Panniculitis

Masaharu Nakamura  1 , Yoshihide Matsumoto  1 , Shinya Hoki  1 , Shigenobu Kuroki  1 , Kozo Ikuta  1 , Eri Senda  1 , Seiji Shio  1
Affiliations
Case Reports

Lesser Omental Panniculitis

Masaharu Nakamura et al. Intern Med. .

Abstract

A 44-year-old woman presented to our hospital with abdominal pain. Abdominal ultrasonography and computed tomography showed a mass-like change in the lesser omentum between the liver and stomach. Esophagogastroduodenoscopy revealed a submucosal tumor-like change, and endoscopic ultrasonography (EUS) revealed that the mass was located outside of the stomach wall. We performed EUS fine-needle aspiration and diagnosed panniculitis of the lesser omentum. Based on these findings, we suggest that mass-like lesions in the lesser omentum and submucosal tumor-like changes in the anterior wall on the lesser curvature side of the stomach be evaluated for the possibility of panniculitis of the lesser omentum.

Keywords: endoscopic ultrasonography; lesser omentum; panniculitis.

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Conflict of interest statement

The authors state that they have no Conflict of Interest (COI).

Figures

Figure 1.
Figure 1.
Abdominal ultrasonography image showing a hyperechoic mass lesion (circle).
Figure 2.
Figure 2.
Computed tomography (CT) image of the abdomen showing the mass located in the lesser omentum (arrow) in the axial image (A) and coronal image (B).
Figure 3.
Figure 3.
Abdominal magnetic resonance imaging showing a moderate-intensity mass (arrow) on T1 (A), a low-intensity mass on T2 (B), a high-intensity mass on fat-suppression imaging (C), and a high-intensity mass lesion on diffusion-weighted imaging (D).
Figure 4.
Figure 4.
Endoscopy image showing a submucosal tumor (SMT)-like change of approximately 40 mm in diameter in the anterior wall on the side of the lesser curvature of the stomach.
Figure 5.
Figure 5.
Endoscopic ultrasonography (EUS) revealed that the mass was located outside of the stomach wall (arrow). (A) The internal echo of the mass was relatively uniform, and the mass was hypovascular on color Doppler (B); EUS-FNA was performed (arrow) (C).
Figure 6.
Figure 6.
Hematoxylin and Eosin staining showing the presence of only adipose tissue, inflammatory cells, and fibrosis.
Figure 7.
Figure 7.
CT image on admission (left), after 8 weeks (middle), and after 5 months (right).
See this image and copyright information in PMC

References

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