PURPOSE To examine the value of surgical resection combined with preoperative external beam radiation therapy and intraoperative radiation therapy (Surg-RT) for retroperitoneal sarcoma (RPS). METHODS Review of 63 consecutive patients with RPS from 1996 to 2011. RESULTS Thirty-seven patients (59%) underwent Surg-RT and 26 (41%) had surgery alone. 51% of tumors were high grade and 36% of pati...

radiation induced sarcoma is a rare but recognized complication of radiotherapy and is associated with poor prognosis, frequently occurs 5 years after completion of treatment. we report radiation-induced sarcoma in a 42 years old male, involving the left parietooccipital scalp region following treatment of brain tumor with craniotomy and post-operative radiation with 60co machine. diagnosis of ...

UNLABELLED The aim of this study is to assess treatment results of 48 pediatric high-risk medulloblastoma cases that were treated by surgery, radiotherapy with or without chemotherapy. The impact of adjuvant combination chemotherapy on treatment results will be assessed. Forty-eight cases of pediatric high-risk medulloblastoma treated from July 2001 to July 2004 were randomized into two groups....

Radiation induced sarcoma is a rare but recognized complication of radiotherapy and is associated with poor prognosis, frequently occurs 5 years after completion of treatment. We report radiation-induced sarcoma in a 42 years old male, involving the left parietooccipital scalp region following treatment of brain tumor with craniotomy and post-operative radiation with 60Co machine. Diagnosis of ...

PURPOSE To assess efficacy and tolerance of intra-operative radiation therapy (IORT) in patients suffering from locally advanced rectal cancer, treated with preoperative radiotherapy followed by surgical resection. METHODS AND MATERIALS In this French, multicenter, comparative, phase III study, 142 patients with locally advanced rectal cancer (T3 or T4 or N+, and M0), treated with a 4-week pr...

the cancer of oral cavity is related to lesions of mucous membrane of tongue and gum that can be treated with radiation therapy. a lateral photon field can be used to treat this kind of tumor, which has a side‑effect on normal tissue in the opposite side of the oral cavity. in this study the dosimetric effect of the various shields in oral cavity is evaluated. in this study, a special phantom s...

extra renal extra cranial malignant rhobdoid tumors (mrt) are rare, frequently lethal and affect mostly children. no definite treatment has been made and the role of radiation therapy is poorly defined. this report explains a 14 year old girl with mrt in her neck soft tissue. she is alive with no evidence of disease 18 months after diagnosis. through the experience with this case, we suggested ...

normal 0 false false false en-us x-none fa introduction: in radiation therapy centers across iran, protection of normal tissues is usually accomplished by either cerrobend or lead block shielding. in this study, the influence of these two shielding methods on central axis dose distribution of photon beam a cobalt unit was investigated in clinical conditions. materials and methods: all measureme...