PMC4996596_01
Computed tomography (CT) findings. (A) CT showed a ruptured left renal angiomyolipoma (AML; arrows) with a maximum diameter of 12 cm. (B) Enhanced CT showed a reruptured AML (arrows) with intratumoral hemorrhage (arrowheads).
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A 30-year-old woman in her first 19th week of pregnancy with asymptomatic gross hematuria was referred to our department for the treatment of a left renal mass 12 cm in diameter, which was confirmed by computed tomography (CT) in a previous hospital (Fig. 1A). At 34 weeks of pregnancy, the patient presented to our hospital with a left back pain. A CT findings showed retroperitoneal hemorrhage caused by a reruptured AML aneurysm (Fig. 1B).
Angiography findings. (A) Angiography revealed two aneurysms. The ruptured aneurysm had an irregular shape (arrows) and the other one had a regular shape (arrowheads). (B) Arteries leading toward each aneurysm were embolized.
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Angiography showed two AML feeding arteries and two aneurysms, one on each of the arteries (Fig. 2A). Although one aneurysm had an irregular shape, which was responsible for bleeding, and the other regular, there was no contrast extravasation clearly from either aneurysm. All aneurysms were embolized with gelatin sponge particles and coils (Fig. 2B).