PMC9989423_01
Soft tissue metastasis of follicular variant of papillary thyroid carcinoma (HE, x400).
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A female aged 62 years old was admitted to our institute with soft tissue metastasis of a follicular variant of papillary thyroid carcinoma, which was confirmed by biopsy (Figure 1).
Radiological findings and histopathological results of the patient. (a) Ovarian tumor. (b) Lung metastases. (c) Follicular thyroid carcinoma arising within a mature cystic teratoma (HE, x200). (d) Follicular variant of papillary thyroid carcinoma (HE, x400).
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Cranial, thoracic, and abdominal computed tomography (CT) showed the 30 x 14 mm, extra-axial brain lesion without invading the right brain parenchyma; lung metastases; an 82 x 75 mm complex left ovarian mass, its content was mainly fluid with a small solid area (Figure 2(a) and (b)). The definitive histopathological examination revealed a follicular thyroid carcinoma arising from mature cystic teratoma (Figure 2(c)). Two weeks later, the patient underwent total thyroidectomy and surgical removal of left supraclavicular soft tissue; the histopathology of the left thyroid nodule and removed soft tissue are a follicular variant of papillary thyroid carcinomas (Figure 2(d)).