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Imaging characteristics of heterotopic mesenteric ossification on FDG PET and Tc-99m bone SPECT
Sylvia Deryk1, Lode Goethals, Christian Vanhove
1Department of Nuclear Medicine, UZ Brussels, Brussels, Belgium. sylviaderyk@hotmail.com
Abstract:
A CT scan of a 69-year-old male patient, performed for staging of suspected lung carcinoma, incidentally showed an irregular lesion of 10 cm in the upper abdomen. Further investigation using FDG-PET showed only moderately increased glucose metabolism, whereas Tc-99m MDP SPECT revealed intense osteoblastic activity inside the lesion. A CT-guided biopsy was performed and histologic analysis established the diagnosis of heterotopic mesenteric ossification. This pathology is rare and mostly diagnosed when it is complicated by small bowel obstruction.
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