We report an unusual case of malignant pseudothyroiditis (MPT) occurred in a 35-year-old female patient presenting with symptoms and signs of thyroiditis. Fine-needle aspiration biopsy of the thyroid demonstrated the presence of a MPT induced by a metastatic extrathyroidal carcinoma. F-FDG-PET/CT showed increased radiopharmaceutical uptake in the thyroid, in multiple cervical and mediastinal lymph nodes, and in a right pulmonary nodule. Histological examination demonstrated the presence of a metastatic non-small cell lung cancer (NSCLC). In this unusual case of MPT F-FDG-PET/CT has been useful in staging the disease and in detecting the primary tumor site.
Treglia, G., Del Ciello, A., Fadda, G., Calcagni, M. L., Usefulness of 18F-FDG PET/CT in a Rare Case of Malignant Pseudothyroiditis, <<CLINICAL NUCLEAR MEDICINE>>, 2013; (N/A): N/A-N/A. [doi:10.1097/RLU.0b013e31827a27c8] [http://hdl.handle.net/10807/42005]
Usefulness of 18F-FDG PET/CT in a Rare Case of Malignant Pseudothyroiditis
Treglia, Giorgio;Del Ciello, Annemilia;Fadda, Guido;Calcagni, Maria Lucia
2014
Abstract
We report an unusual case of malignant pseudothyroiditis (MPT) occurred in a 35-year-old female patient presenting with symptoms and signs of thyroiditis. Fine-needle aspiration biopsy of the thyroid demonstrated the presence of a MPT induced by a metastatic extrathyroidal carcinoma. F-FDG-PET/CT showed increased radiopharmaceutical uptake in the thyroid, in multiple cervical and mediastinal lymph nodes, and in a right pulmonary nodule. Histological examination demonstrated the presence of a metastatic non-small cell lung cancer (NSCLC). In this unusual case of MPT F-FDG-PET/CT has been useful in staging the disease and in detecting the primary tumor site.
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