title: I-131 accumulation in a benign cystic mesothelioma in a patient with follicular thyroid cancer.
abstract: Focal I-131 accumulation is generally a reliable indicator of functioning normal thyroid tissue or a differentiated thyroid cancer metastasis. However, physiologic accumulation of activity may also be observed in organs such as the intestinal tract, liver, and salivary glands. Extrathyroidal I-131 accumulation has been reported in various sites, such as ectopic gastric mucosa, gastrointestinal and urinary tract abnormalities, cysts (mammary, liver, kidney, and ovaries), and inflammation and infection foci. We report a case of focal I-131 accumulation in a benign cystic mesothelioma in a patient with follicular thyroid cancer.
authors.affiliation: Department of Nuclear Medicine, University Medical Center Utrecht, Utrecht, The Netherlands. bdekeizer@yahoo.com
authors.forename: Bart
authors.initials: B
authors.lastname: de Keizer
authors.forename: Georgios
authors.initials: G
authors.lastname: Arsos
authors.forename: Jan W
authors.initials: JW
authors.lastname: Smit
authors.forename: Marnix G
authors.initials: MG
authors.lastname: Lam
authors.forename: Inne H Borel
authors.initials: IH
authors.lastname: Rinkes
authors.forename: Roel
authors.initials: R
authors.lastname: Goldschmeding
authors.forename: Johannes W
authors.initials: JW
authors.lastname: van Isselt
mesh_terms: D018263:Adenocarcinoma, Follicular / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D000328:Adult; D006801:Humans; D007457:Iodine Radioisotopes / Q000493:pharmacokinetics; D008297:Male; D018261:Mesothelioma, Cystic / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D009369:Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging / Q000473:pathology; D010534:Peritoneal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography; D016606:Thyroid Nodule / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D014018:Tissue Distribution; D015899:Tomography, Emission-Computed, Single-Photon / Q000009:adverse effects*
chemical_list: D007457:Iodine Radioisotopes