Abstract
After separating gastrointestinal (GI) stromal tumors from true smooth muscle tumors of the GI tract, leiomyosarcoma (LMS) of the GI tract has become a rare tumor. Gastric LMS is extremely rare and accounts for 0.1% of all cases of LMS in the GI tract. There are few English-language reports of gastric LMS describing radiologic findings. Here, we report a case of gastric LMS and review the recent literature focusing on radiologic findings. An 80-year-old female patient was referred for evaluation of a gastric mass accompanied by severe anemia. The physical examination revealed no specific findings except for an anemic conjunctiva. Laboratory data showed a low hemoglobin level of 5.1 g/dL. Endoscopy revealed a huge subepithelial mass in the posterior wall of the gastric body. Contrast-enhanced computed tomographic images showed an intraluminal protruding enhancing mass with an internal stalk appearance in the gastric body. There was no internal necrosis or calcification. The patient underwent subtotal gastrectomy and was diagnosed with primary gastric LMS. The diagnosis of gastric LMS is challenging due to its rarity. Our case report suggests that the presence of an internal stalk or spouting appearance can help prompt the radiologist to consider gastric LMS in the differential diagnosis.
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