FDG PET/CT in a Case of Metastasizing Pleomorphic Adenoma in the Ilium.
case_report · Level V
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- Record sourced from PubMed, PMID 39774552.
- Also identified by DOI 10.1097/RLU.0000000000005572.
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Abstract
Although pleomorphic adenomas of the salivary glands are benign tumors, they can metastasize to distant organs without evidence of malignant transformation. We describe FDG PET/CT finding in a case of metastasizing pleomorphic adenoma in the right ilium occurring 22 years after initial surgical resection of a lip pleomorphic adenoma. On FDG PET/CT, the iliac metastasis appeared as an expansile osteolytic lesion with heterogeneous activity. This case indicates that metastasizing pleomorphic adenoma, although rare, should be included in the differential diagnosis of FDG-avid osteolytic bone lesions in patients with a history of salivary gland pleomorphic adenoma.