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Intrasellar germinoma treated with low-dose radiation
1Neurosurgical Service, Kuang Tien General Hospital, Taiwan. hkli@ms28.hinet.net
Acta Neurochirurgica
|May 4, 2006
Summary
A reduced radiation dose (27 Gy) effectively treated an intrasellar germinoma in a teenager, resolving symptoms and preventing recurrence. This approach offers a promising alternative for managing pituitary tumors.
Area of Science:
- Neuro-oncology
- Endocrinology
- Radiation Oncology
Background:
- Intrasellar germinomas are rare tumors affecting the pituitary gland.
- Standard treatment often involves surgery and higher radiation doses.
Observation:
- A 17-year-old presented with headache, amenorrhea, and weight loss, indicative of a pituitary mass.
- MRI revealed an intrasellar tumor extending to the pituitary stalk and hypothalamus.
- Elevated prolactin levels were noted, with other pituitary hormones within normal limits.
Findings:
- Transsphenoidal surgery confirmed a pure germinoma.
- A reduced radiation dose of 27 Gy was administered post-operatively.
- The patient experienced symptom resolution, including resumed menstrual cycles.
- Follow-up MRI showed no tumor recurrence.
Implications:
- Lower-dose radiation therapy may be a viable and effective treatment for select cases of intrasellar germinoma.
- This approach could minimize long-term side effects associated with higher radiation doses.
- Further research is warranted to establish optimal radiation protocols for pediatric and adolescent pituitary tumors.