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[Radiotherapy of pituitary tumors]
Carla Baptista1, Isabel Paiva, Leonor Gomes
1Serviço Endocrinologia, Diabetes e Metabolismo, Hospitais da Universidade de Coimbra, Coimbra.
Acta Medica Portuguesa
|October 17, 2002
Summary
External radiotherapy for pituitary adenomas showed moderate success in reducing tumor mass and normalizing hormone levels. However, potential complications like hypopituitarism and stroke require careful consideration in treatment planning.
Area of Science:
- Endocrinology
- Radiation Oncology
- Neurosurgery
Context:
- Pituitary adenomas are common tumors affecting hormonal balance and neurological function.
- Conventional external radiotherapy has been used as a treatment modality for these tumors.
- Evaluating the long-term efficacy and safety of radiotherapy is crucial for patient management.
Purpose:
- To assess the effectiveness of conventional external radiotherapy in managing pituitary adenomas.
- To analyze tumor mass reduction and hormonal level changes post-radiotherapy.
- To document and evaluate complications associated with this treatment.
Summary:
- This study evaluated 27 patients with pituitary adenomas treated with external radiotherapy between 1970 and 1998.
- Tumor mass reduction was observed in 66.6% of nonfunctioning and 25% of secreting adenomas.
- Hormonal level normalization occurred in 30% of patients, with a 126.3-month follow-up.
Impact:
- Radiotherapy can achieve tumor mass reduction and hormonal control in a significant portion of pituitary adenoma patients.
- Potential complications include hypopituitarism, stroke, cerebral edema, memory, and hearing loss.
- The study highlights the need for careful patient selection and monitoring during radiotherapy for pituitary adenomas.