case_images: PMC11140016_01
case_images: Abdominal ultrasonography, contrast-enhanced ultrasound (CEUS) of case. (A) Gray scale ultrasound showed a hypoechoic mass in the abdominal wall; (B) color Doppler flow imaging (CDFI) showed the mass with little blood flow signal; (C) CEUS showed hyper-enhancement of the large mass (yellow arrow) and no enhancement of the small mass (white arrow) in the arterial stage.
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case_images: PMC11140016_01_fonc-14-1391850-g001.jpg
case_images: f1
case_images: The two larger ones are approximately 41 x 25mm and 20 x 16mm with clear boundaries that were connected ( Figure 1A ). Color Doppler flow imaging (CDFI) showed a punctate blood flow signal within the mass ( Figure 1B ), and resistance index of 0.74. The smaller mass showed relatively no enhancement in the arterial phase and low enhancement around in venous phase ( Figure 1C ).
case_images: Contrast-enhanced magnetic resonance imaging (CE-MRI) of case. (A-D) MRI showed a slightly high signal in T1-weighted imaging, and a slightly high signal in T2-weighted imaging, diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC); (E, F) CE-MRI showed that the mass progressive enhancement in the arterial phase and the delayed phase (see arrows).
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case_images: f2
case_images: An MRI was performed, which showed similar circular abnormal signal shadows on the anterior abdominal wall and abdominal cavity, with sizes of 29 x 16mm and 31 x 21mm, a slightly longer T1 and slightly longer T2, limited diffusion, and progressive enhancement after enhancement ( Figures 2A-F ).
case_images: Pathology of case. (A) mass stained with hematoxylin and eosin (original magnification x 10); (B-F) SMA (+), DES (+), PR (+), ER (+), Ki-67 (<1%) was detected by immunohistochemical staining (original magnification x 10).
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case_images: f3
case_images: Immunohistochemical staining showed that smooth muscle actin (SMA), desmin, estrogen receptor (ER) and progesterone receptor (PR) were positive, and cell proliferation antigen Ki-67 was less than 1% ( Figures 3A-F ).