title: Static pulmonary nodules from thyroid malignancy.
abstract: Papillary carcinoma of thyroid tends to be indolent. This is an unusual case of papillary carcinoma of thyroid with asymptomatic pulmonary metastasis for more than a decade, finally presenting with mild respiratory symptoms in a 21-year-old female. Fine needle aspiration and cytology (FNA-C) of a nodule in the lungs revealed features consistent with a papillary carcinoma of thyroid. Confirmed on thyroidectomy specimen. She subsequently received Iodine-131 (I131). A follow-up radio-iodide scan, 48 hours after, revealed diffuse uptake within the lung parenchyma. With static nodular shadowing on radiograph, a metastatic origin, in particular that of the thyroid, should be considered. I131 scintigraphy can help support the diagnosis of carcinoma of thyroid.
authors.affiliation: Department of Medicine, The Aga Khan University, Karachi, Pakistan. najmul.islam@aku.edu
authors.forename: Najmul
authors.initials: N
authors.lastname: Islam
authors.forename: Munira Mehboob
authors.initials: MM
authors.lastname: Shahpurwala
authors.forename: Bilal Karim
authors.initials: BK
authors.lastname: Siddiqui
authors.forename: Javaid A
authors.initials: JA
authors.lastname: Khan
mesh_terms: D000328:Adult; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000556:secondary* / Q000628:therapy; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000556:secondary* / Q000628:therapy; D013964:Thyroid Neoplasms / Q000473:pathology*