A 54-year-old woman with diabetes mellitus was admitted to our hospital with a palpable abdominal mass. She had a previous history of three pregnancies and three births. Her vital signs were normal and a physical examination revealed a fist-sized mass in the left lower quadrant of the abdomen. The mass had restricted mobility. Laboratory tests revealed hyperglycemia (161 mg/dl), hypercalcemia (9.8 mg/dl), and elevated CA19-9 (854 U/ml).Ultrasonographic findings. Ultrasonography (US) revealed a 13 cm × 9 cm oval-shaped mass, which was composed of solid and cystic compartments, in the right lower quadrant of the abdomen (Fig. 1a,b). Color Doppler US detected no flow signals in the mass. Fluid was also found to have collected around the mass.
Ultrasonographic diagnosis. Abdominal tumor with unknown origin.Analysis. Computed tomography (CT; Fig. 2) revealed a mixed-density oval-shaped mass in the right pelvis. T1-weighted magnetic resonance imaging (MRI) revealed a mixed-intensity mass in the right pelvis (Fig. 3). These imaging modalities, however, were not able to indicate the origin of the mass. During surgery it was found that the mass originated from the left ovary. Histopathological examination of an excised specimen revealed that the mass comprised a single cyst, which contained squamous cells, cil-J Med Ultrasonics (2006) 33:185-186 Fig. 1a,b. Ultrasonography revealed an oval-shaped mass in the right lower quadrant of the abdomen. Coronal view (a) and longitudinal view (b) a b
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