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Click 85 year old woman with umbilical concretion. Axial contrast enhanced CT of the abdomen and pelvis shows a rounded non-enhancing soft tissue density with well-defined margins within the subcutaneous tissues of the anterior abdominal wall near the level of the umbilicus. There is linear calcific density at the most superficial aspect of the lesion. More inferior slices shows the mass lesion to be directly communicating with air at the level of the umbilical cleft. (4.0 mm axial CT reconstruction from a venous phase acquisition at 120 kVp and 223 mAs on a Philips 64-slice scanner following intravenous administration of 100 mL of Isovue-370.)

Click 85 year old woman with umbilical concretion. Coronal images from contrast enhanced CT of the abdomen and pelvis shows a rounded non-enhancing soft tissue density with well-defined margins within the subcutaneous tissues of the anterior abdominal wall near the level of the umbilicus. Superficial slices shows the mass lesion to be directly communicating with air at the level of the umbilical cleft. (3.0 mm coronal CT reformat from a venous phase acquisition following at 120 kVp and 223 mAs on a Philips 64-slice scanner intravenous administration of 100 mL of Isovue-370.)

Click 85 year old woman with umbilical concretion. Transverse and sagittal pre-operative images from sonographic examination with and without color Doppler imaging shows ovoid heterogeneous, predominantly hypoechoic, solid nodule near the level of the umbilicus. The lesion causes some shadowing and there is no intranodular vascularity. Post-operative transverse greyscale images from sonographic examination show no residual lesion within the umbilicus following non-invasive evacuation of umbilical concretion. Ultrasound transmission gel is seen within the umbilicus. (Static images from sonographic examination with linear 12 MHz transducer.)