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. 2025 Apr 8;13(4):e70408.
doi: 10.1002/ccr3.70408. eCollection 2025 Apr.

Primary Adenocarcinoma of the Lesser Omentum: A Case Report

Xiaoyang Zhang  1   2 , Ruizeng Feng  1 , Xue Zhang  3 , Hongfang Tuo  1 , Xing Xu  1   2
Affiliations

Primary Adenocarcinoma of the Lesser Omentum: A Case Report

Xiaoyang Zhang et al. Clin Case Rep. .

Abstract

Adenocarcinoma of the lesser omentum is a rare malignant tumor. Because of its rarity, unusual origin, and possibly diverse symptoms, this malignancy poses significant challenges in both diagnosis and treatment, and prognosis can vary widely among individuals. This report aims to enhance understanding and provide insights into future treatment.

Keywords: adenocarcinoma; case report; image reconstruction; omentum.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

FIGURE 1
FIGURE 1
(a) An enhanced CT scan of the abdomen showed a dumbbell‐shaped moderately inhomogeneous enhancement shadow, measuring approximately 3.6 cm × 1.8 cm, visible in the area of the lesser omental bursa. (b) 3D reconstruction shows the tumor encircling the left gastric artery, splenic artery, and splenic vein. (c) 3D reconstruction showed the tumor to be dumbbell‐shaped, measuring approximately 4 cm × 2 cm × 1 cm.
FIGURE 2
FIGURE 2
(a) Tumor specimen after surgery. (b) Surgical operation. (c) The tumor cells were distinctly heterogeneous, showing glandular tubular structures of varying sizes (HE, ×100).
FIGURE 3
FIGURE 3
No obvious primary lesion within the PET‐CT scanning range.
See this image and copyright information in PMC

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