case_images: PMC10869128_01
case_images: Abdominal computed tomography (CT) on admission showing an intra-abdominal peri-hepatic fluid collection with high density, which could suggest hemoperitoneum. (a) Early phase. (b) Portal phase. (c) Delayed phase.. Contrast-enhanced abdominal CT shows a large heterogeneous mass with a non-uniform enhancement pattern (white arrow) at the extraluminal space of the gastric anterior wall and intra-abdominal peri-hepatic fluid collection.
case_images: cureus-0016-00000052394-i01.jpg
case_images: PMC10869128_01_cureus-0016-00000052394-i01.jpg
case_images: FIG1
case_images: Contrast-enhanced abdominal computed tomography (CT) showed a large heterogeneous tumor with a non-uniform enhancement pattern in the extraluminal space of the gastric anterior wall and intra-abdominal peri-hepatic fluid collection (Figures 1a-1c).
case_images: Abdominal angiography of the tumor.. (a) Supra-mesenteric artery angiography. The arrow shows extravasation of contrast.. (b) Selected right gastroepiploic artery angiography. The arrow shows extravasation of contrast. The arrowhead points to the epiploic branches of the right gastroepiploic artery, which supplies blood to the tumor.. (c) Selective right gastroepiploic artery angiography post-embolization. Tumoral arterial extravasation is absent following embolization.
case_images: cureus-0016-00000052394-i02.jpg
case_images: PMC10869128_01_cureus-0016-00000052394-i02.jpg
case_images: FIG2
case_images: Abdominal angiography showed extravasation of contrast in the abdominal cavity (Figures 2a-2c).
case_images: Esophagogastroduodenoscopy (EGD) showing a mild erosive lesion at the antrum (arrow).. (a) Regular white light endoscopic image.. (b) Chromoendoscopic image with indigo carmine staining of the gastric mucosal surface.
case_images: cureus-0016-00000052394-i03.jpg
case_images: PMC10869128_01_cureus-0016-00000052394-i03.jpg
case_images: FIG3
case_images: Several days later, the patient underwent esophagogastroduodenoscopy (EGD), and a mild erosion was seen surrounding the normal mucosa at the antrum (Figures 3a, 3b).
case_images: (a) Surgical intervention to remove the yellowish mass. (b) The cut surface of the tumor shows a heterogeneous yellowish area and includes the hemorrhagic or necrotic regions.
case_images: cureus-0016-00000052394-i04.jpg
case_images: PMC10869128_01_cureus-0016-00000052394-i04.jpg
case_images: FIG4
case_images: TAE, the tumor underwent surgical resection (Figures 4a, 4b). The tumor was successfully dissected from the stomach, duodenum, and gallbladder, allowing for a tumorectomy.
case_images: Histopathological findings.. (a) Histopathological findings of the tumor stained with hematoxylin-eosin in a low-power view (x10). The tumor consists of a high density of hyperplastic tumor cells. (b) The nuclei of the tumor cells appear oval or spindle-shaped in a high-power view (x40). (c) The tumor shows positive staining for a cluster of differentiation 34 (CD34) in a low-power view (x10). (d) The tumor shows weakly positive staining for DOG1 in a low-power view (x10).
case_images: cureus-0016-00000052394-i05.jpg
case_images: PMC10869128_01_cureus-0016-00000052394-i05.jpg
case_images: FIG5
case_images: The pathological findings showed myxomatous stroma with cells having epithelioid features (Figures 5a, 5b). Immunostaining of the tumor showed that the cluster of differentiation 34 (CD34) was positive and discovered GIST 1 (DOG1) was weakly positive (Figures 5c, 5d).