Misdiagnosis of food-borne foreign bodies outside of the digestive tract on magnetic resonance imaging: Two case reports

Figure 2 A 43-year-old woman was admitted to our hospital with hip pain. A: Magnetic resonance imaging showed abnormal tubular signals behind the anal canal, obvious local enhancement on an enhanced scan, but no enhancement in some layers. Additionally, exudation was observed in the surrounding subcutaneous fat (arrow); B: A low signal bar with very clear and smooth edges was present, but sharp edges were evident on oblique coronal images (arrow).