Periacetabular bone metastasis in follicular variant papillary thyroid carcinoma: a case report
DOI:
https://doi.org/10.64575/cfp9e614Keywords:
Papillary thyroid carcinoma, follicular variant, bone metastasis, periacetabular metastasis, pelvic reconstruction, Stoppa approachAbstract
Bone metastasis from papillary thyroid carcinoma (PTC) is uncommon, and periacetabular involvement is particularly rare. Metastatic lesions located in the pelvis may cause pain, functional impairment, and mechanical instability. This case report presents the surgical management of a periacetabular bone metastasis arising from the follicular variant of papillary thyroid carcinoma. A 60-year-old man presented with progressive left hip pain. He had undergone total thyroidectomy for papillary thyroid carcinoma two months earlier. Radiological evaluation demonstrated a large expansile lytic lesion in the anterior acetabular region extending to the superior pubic ramus. Following multidisciplinary evaluation, the lesion was completely excised through an anterior Stoppa approach. The resulting bone defect was reconstructed using a free tricortical iliac autograft together with plate-and-screw fixation. Histopathological examination confirmed bone metastasis of the follicular variant of papillary thyroid carcinoma. At the one year follow-up, graft union had been achieved, and the patient was able to walk without assistance with satisfactory hip function. Periacetabular metastasis of follicular variant papillary thyroid carcinoma is rare and may significantly compromise functional status. In selected patients, surgical excision and reconstruction may provide effective local tumor control, pain relief, and restoration of pelvic stability.
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Copyright (c) 2026 Salih Ahmet Aksu, Ahmet Yesevi Sarıaslan, Ömer Tolga Şekerci, İbrahim Altun, Sabri Batın (Author)
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