A pomegranate heart

[摘要] Sacrococcygeal teratomas are common in infants while a buttock terotoma is extremely rare in adults. Herein we report a30-year-old female complaining of left hip swelling and pain for 2 weeks. Ultrasonography demonstrated a subcutaneouscystic mass with multiple dense echo spots inside. MR showed a heart-shaped mass in the left buttock, with multiple"pomegranate seeds" inside, which showed hyperintensity on diffusion weighted imaging. The mass was resected and abuttock terotoma containing yellow sebum-like materials and hairs was confirmed pathologically. A thick walled cysticmass on CT or MR images, which contains multiple small solid nodules or fat, indicates the diagnosis of a terotoma. Timelydiagnosis and complete resection bring good prognosis. Adequate follow-up is necessary.

[学科分类] 外科医学

[关键词] Teratoma;magnetic resonance imaging;diffusion weighted imaging