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Case presentation
A 51-year-old man was admitted due to 4 month severe epigastric pain, with a history of untreated maternal–infant transmitted hepatitis B. Laboratory tests showed normal blood count and liver function, elevated alpha-fetoprotein (AFP) of 205 ng/mL, HBsAg (+), HBcAb (+), HBeAg (−), HBeAb (−) and an HBV-DNA level of 5143 IU/mL. Ultrasound and MRI revealed a large mass in the right upper abdomen, with suspicion of gastrointestinal stromal tumour (GIST) (figure 1A). On referral to our hospital, enhanced abdominal CT showed a 10.2 cm × 8.8 cm mass with heterogeneous enhancement and an inconspicuous fast-in/fast-out pattern, suggesting origin from antrum, compression of right liver lobe (figure 1B,C) and blood supply from gastro-duodenal artery (figure 1D). Endoscopic ultrasonography (EUS) revealed an unclear boundary between the mass and the antrum, with smooth mucosa (figure 2). EUS-guided fine needle aspiration (EUS-FNA) was taken as PET-CT showed hypermetabolism, but the patient developed severe abdominal pain, hypotension and a decrease in haemoglobin immediately after operation, with CT angiography indicating contrast extravasation in the mass and …
Footnotes
JX, LJ and YW contributed equally.
Contributors JX and LJ wrote the manuscript. YW, ZW, JB, ZWW reviewed the literature and provided critical revision of the manuscript. KH and XW provided overall supervision of the manuscript. All authors approved the final version of the manuscript to be published. KH is the guarantor.
Funding This work was supported by National High Level Hospital Clinical Research Funding [2022-PUMCH-B-069].
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.