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Year : 2014  |  Volume : 11  |  Issue : 3  |  Page : 111-112

Image findings of a false positive radioactive I-131 uptake mimicking metastasis in pulmonary aspergillosis identified on Single photon emission computed tomography-computed tomography

Department of Nuclear Medicine and Positron Emission Tomography/Computed Tomography, Comprehensive Cancer Care Centre, Kovai Medical Centre and Hospital Limited, Coimbatore, Tamil Nadu, India

Correspondence Address:
Koramadai Karuppusamy Kamaleshwaran
(Nuclear Medicine) Department of Nuclear Medicine, Positron Emission Tomography/Computed Tomography and Radionuclide Therapy, Comprehensive Cancer Care Centre, Kovai Medical Centre and Hospital Limited, Coimbatore 641 014, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-0354.138556

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High doses of iodine-131 (I-131) are commonly used in patients with differentiated thyroid cancer (DTC) after total or subtotal thyroidectomy, in order to ablate the remaining cancer or normal thyroid tissue. Multiple different false-positive scans can occur in the absence of residual thyroid tissue or metastases. The authors present a case of abnormal uptake of radioactive iodine in the Aspergilloma, potentially masquerading as pulmonary metastases.

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