Early neurological complications after stereotactic radiosurgery/radiotherapy.

Objective: To evaluate the neurological complications after stereotactic radiosurgery (SRS) and stereotactic radiotherapy (SRT).

Material And Method: The Ramathibodi Radiosurgery Unit started its service in August 1997, using the linear-accelerator based system. There were 144 patients treated from August 1997 to October 1999.

7 year-survival of 2 cases of multicentric or metastatic osteosarcoma.

Osteosarcoma is a fatal disease. Neoadjuvant chemotherapy combined with irradiation treatment provide a better survival. In the Faculty of Medicine, Ramathibodi Hospital, the overall 9 year survival probability was 55 per cent among 130 cases of more than Enneking stage II osteosarcoma.

Salvage treatment for sarcomas of the hand.

We report 6 patients (1 male and 5 females; age range, 13-77 years) with hand sarcoma. The lesions were located between the digits and the distal end of the radius. A painless mass was the common manifestation in these patients.

An integrated approach to the evaluation of osseous tumors.

Modern treatment techniques for musculoskeletal neoplasms require significant imaging information to determine the nature and extent of tumors. The imaging investigation should be selected according to the information needed. Conventional radiographic techniques remain of fundamental importance in the analysis of bone tumors and tumor-like lesions, whereas advance imaging techniques such as CT and MR imaging can provide information regarding the extent of lesions.

Prognostic factors among 130 patients with osteosarcoma.

One hundred thirty patients with high grade osteosarcoma were enrolled in a randomized prospective multidisciplinary treatment that included intraarterial chemotherapy, local irradiation, limb salvage surgery, and prophylactic whole lung irradiation. The patients were evaluated to stage the prognostic factors. In a multivariate analysis, a minimal level of serum lactic acid dehydrogenase less than 300 IU/L showed a significant prognostic value.