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A case is described of thyroid carcinoma presenting as renal metastases 37 years after initial resection of the primary. Thyroid carcinoma metastatic to the kidney detected during life is rare, only 2 cases having been reported to date. An additional feature of this case is that the patient had donated the contralateral kidney for transplantation before discovery of the metastases. Metastatic thyroid carcinoma is reviewed and the implication of organ donation in patients with thyroid carcinoma is discussed.

A case of an asymptomatic posterior mediastinal thoracic duct cyst diagnosed with fluoroscopically guided needle aspiration is reported. Previously, the diagnosis of thoracic duct cyst was established surgically and more recently was established by lymphangiography. To the authors' knowledge, diagnosis using needle aspiration has not been reported.

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