European journal of endocrinology · 2000
Positive effect of radiotherapy and surgery on hormonally active pulmonary metastases of primary parathyroid carcinoma.
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Rasmuson T, Kristoffersson A, Boquist L
Аннотация
OBJECTIVE: Parathyroid carcinoma is a rare cause of primary hyperparathyroidism. Surgery is the primary treatment in recurrent or metastatic disease. Radiotherapy has been used as an adjuvant to control subclinical local disease but is otherwise considered ineffective.
DESIGN: We report on a patient with parathyroid carcinoma with hypercalcaemia and pulmonary metastases, treated with pamidronate and radiotherapy and later with surgery.
METHODS: The treatment was evaluated using serial analysis of serum parathyroid hormone (PTH) and calcium, clinical evaluation and chest radiographs.
RESULTS: Intravenous pamidronate alone had limited effect on hypercalcaemia. Following irradiation of the pulmonary lesions (34 Gy in ten fractions), serum levels of calcium and PTH decreased and pamidronate could be discontinued. The patient's general condition improved parallel to a radiological response. At clinical relapse 18 months following radiotherapy, the pulmonary metastases were resected and serum PTH was normalised.
CONCLUSIONS: The results indicate that parathyroid carcinoma can be radiosensitive. Thus radiotherapy may be an alternative to palliate symptoms of hypercalcaemia in patients not suited for surgery.
DESIGN: We report on a patient with parathyroid carcinoma with hypercalcaemia and pulmonary metastases, treated with pamidronate and radiotherapy and later with surgery.
METHODS: The treatment was evaluated using serial analysis of serum parathyroid hormone (PTH) and calcium, clinical evaluation and chest radiographs.
RESULTS: Intravenous pamidronate alone had limited effect on hypercalcaemia. Following irradiation of the pulmonary lesions (34 Gy in ten fractions), serum levels of calcium and PTH decreased and pamidronate could be discontinued. The patient's general condition improved parallel to a radiological response. At clinical relapse 18 months following radiotherapy, the pulmonary metastases were resected and serum PTH was normalised.
CONCLUSIONS: The results indicate that parathyroid carcinoma can be radiosensitive. Thus radiotherapy may be an alternative to palliate symptoms of hypercalcaemia in patients not suited for surgery.