Article: article from journal or magazin.
Case report (case report): feedback on an observation with a short commentary.
Pathologic fracture of the femur neck as first manifestation of a minute columnar cell carcinoma of the thyroid gland
Pathology, Research and Practice
861-3; discussion 865-6
This case report concerns a 64 year-old woman who presented a pathologic fracture of the femur neck. Histologic examination of the performed bone biopsy disclosed the presence of a carcinomatous metastasis with unusual microscopic features. The site of the primary tumor could be unequivocally determined as being the thyroid gland, as immunostaining of the tumor cells showed positivity with anti-thyroglobulin. The thyroidectomy specimen weighed 149 g, was nodular and partially calcified. Exhaustive microscopic examination finally revealed the presence of a minute columnar cell carcinoma, 0.6 cm in diameter, with obvious vascular invasion. This case illustrates well 1) the usefulness of immunostaining with anti-thyroglobulin in cases of bone metastasis with unusual microscopic features and unknown primary, as well as 2) the aggressiveness of this rare type of carcinoma of the thyroid.
Carcinoma, Papillary/chemistry/*secondary/surgery Female Femoral Neck Fractures/*etiology/pathology Femoral Neoplasms/chemistry/*secondary Humans Immunoenzyme Techniques Middle Aged Thyroglobulin/analysis Thyroid Neoplasms/chemistry/*pathology/surgery Treatment Outcome
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