An unusual case of follicular variant of Papillary Thyroid Carcinoma with temporal bone metastasis diagnosed by cytology
Keywords:
FNAC, follicular, metastases, papillary, thyroid, skullAbstract
Skull metastasis of thyroid cancer is rare and majorities are of the follicular subtype, rather than papillary thyroid carcinoma. Here, we present a case of follicular variant of papillary thyroid carcinoma (FVPTC) with temporal metastasis. A 45yrs female presented with thyroid swelling since 8 months and scalp swelling since few days. Fine needle aspiration of thyroid and scalp swelling as well showed features of FVPTC. On CT examination, there was focal osteolytic erosion suggestive of lytic bone metastasis. Histopathological examination after total thyroidectomy confirmed a diagnosis of papillary thyroid carcinoma follicular variant involving regional lymph nodes.
 Skull metastasis should be considered at the outset of the clinical course of thyroid carcinoma and all patients should be meticulously investigated with a multidisciplinary approach as if detected early it improves the prognosis. Fine needle aspiration cytology (FNAC) and histopathology plays key role in diagnosis along with radiological and clinical examination correlation.
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Copyright (c) 2016 Poonam G Lahane, Prashant Kumavat, Kavita Khedekar, Nitin M Gadgil, Chetan S Chaudhari
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