A patient with multiple episodes of gastrointestinal bleeding underwent 99mTc-labeled red blood cell scintigraphy to detect the source of bleeding, which showed a focally increased activity in the upper midabdomen. SPECT/CT demonstrated that the activity was located in the pancreatic head. Angiography confirmed the diagnosis of pancreatic arteriovenous malformation. After transarterial embolization therapy, the patient no longer had bleeding episode. Based on the present case, pancreatic arteriovenous malformation should be included as differential diagnosis during 99mTc–red blood cell scintigraphy.
Received for publication August 3, 2020; revision accepted August 7, 2020.
Conflicts of interest and sources of funding: J.Y. was supported by National Natural Science Foundation of China (no. 81771860, 81971642), Beijing Natural Science Foundation (no. 7192041), National Key Research and Development Plan (no. 2017YFC0114003). None declared for the other authors.
Correspondence to: Jigang Yang, MD, PhD, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China, 95 Yong An Road, Xi Cheng District, Beijing, China, 100050. E-mail: 13681221974@163.com.
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