PMC5966845_01
Plain computed tomography (CT) images of the right biceps brachii and abdomen on Day 12. (a) An intramuscular hematoma containing fluid-fluid levels (surrounded by white arrows) is visible in the right biceps brachii. The patient's right arm was pulled down to obtain these images because severe pain prevented her from lifting it. (b) A massive hematoma (surrounded by white arrows) is visible in the retroperitoneal space at the height of the aortic bifurcation and adjacent to the ileum and right iliopsoas muscle (asterisk).
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However, her Hb concentration had dropped to 80 g/L, and plain whole-body computed tomography (CT) revealed a hematoma in the right biceps brachii (Figure 1(a)) and retroperitoneal hematoma adjacent to the right iliopsoas muscle and ileum (Figure 1(b)).