case_images: PMC11219900_01
case_images: PMC11219900_02
case_images: PMC11219900_03
case_images: OA-CEUS showing a localized thickening of the jejunal intestinal wall measuring approximately 4x3 cm, with irregular morphology, no longer discernible stratification and involving peri-intestinal fat (white arrows). (A) longitudinal section of the lesion. (B) transverse section of the lesion.
case_images: fonc-14-1288041-g001.jpg
case_images: PMC11219900_03_fonc-14-1288041-g001.jpg
case_images: f1
case_images: Figure 1 ). Following the intravenous injection of 2.5 ml of ultrasound contrast agent (SonoVue, Bracco, Milan, Italy),
case_images: DCEUS demonstrating the abnormal heterogeneous hyper-enhancement of the jejunal intestinal wall (white arrows).
case_images: fonc-14-1288041-g002.jpg
case_images: PMC11219900_03_fonc-14-1288041-g002.jpg
case_images: f2
case_images: The non-enhanced areas might indicate necrotic portions of the tumor ( Figure 2 ,  Supplementary Material ).
case_images: The abdominal CT revealing a thickened jejunal wall resembling a mass, displaying heterogeneous density and enhancement (white arrows). (A) Non-contrast CT scan. (B) Enhanced CT scan.
case_images: fonc-14-1288041-g003.jpg
case_images: PMC11219900_03_fonc-14-1288041-g003.jpg
case_images: f3
case_images: The abdominal CT revealed a thickened jejunal wall resembling a mass, displaying heterogeneous density and enhancement ( Figure 3 ).
case_images: PMC11219900_04
case_images: Microscopic image of the tumor from the pathologic specimen; hematoxylin and eosin staining.
case_images: fonc-14-1288041-g004.jpg
case_images: PMC11219900_04_fonc-14-1288041-g004.jpg
case_images: f4
case_images: The postoperative gross pathology ( Figure 4 ) revealed moderately differentiated adenocarcinoma with no evidence of metastasis in the excised lymph nodes, and successful attainment of a clear surgical margin.
case_images: Timeline information in this case report.
case_images: fonc-14-1288041-g005.jpg
case_images: PMC11219900_04_fonc-14-1288041-g005.jpg
case_images: f5
case_images: The timeline of this case is shown in  Figure 5 .