PMC4898077_01
Hemostatic absorbable gelatin (Gelfoam) in a 41-year-old woman who had hysterectomy and bilateral oophorectomy. A, CT shows a very low attenuation lesion (-232 HU) in the surgical bed. Inset shows detail with adjusted window/level settings. B, PET shows no significant activity.
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The CT portion of the scan (Fig. 1 - left) showed a thick-walled very low density lesion in the left pelvis just above the sigmoid colon, not communicating with bowel, measuring 4.7 x 2.8 cm, -232 Hounsfeld units. The corresponding PET axial image (Fig. 1 - right) did not show any significant activity at this location.