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Anthracofibrosis Manifesting as False-Positive Iodine Accumulation in a Patient With Recent History of Thyroid
Katharina Licht1, Claus Kroegel, Kathrin Katenkamp
1From the *Clinic of Nuclear Medicine, †Medical University Clinic I, and ‡Institute of Pathology, Jena University Hospital, Jena, Germany.
Abstract:
A 33-year-old Indonesian woman presented for follow-up after a recent history of papillary thyroid carcinoma treated with total thyroidectomy and radioiodine therapy. A 131I whole-body scintigraphy showed an elongated iodine accumulation in the right hemithorax. On suspicion of pulmonary metastasis, further diagnostics with 124I PET/CT showed thickening of the bronchial wall and retention of secretion in a middle lobe bronchus. Bronchoscopy and histology allowed a diagnosis of stenosing anthracofibrosis with chronic inflammatory changes.
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