background: keloids are benign fibrous dermal tumors originating from skin injury after surgery, piercing or others wounds. materials and methods: sixty-two patients with keloids were treated postoperatively using orthovoltage irradiation. the total dose delivered was 12 gy in three consecutive days, 4gy per fraction. treatment started 24 h after surgery. the median follow-up was 44.5 months. r...

PURPOSE We evaluated the effect of positive superficial and/or deep margin status on local recurrence (LR) in invasive breast cancer treated with breast-conserving surgery (BCS) followed by radiotherapy. MATERIALS AND METHODS In total, 3,403 stage 1 and 2 invasive breast cancer patients treated with BCS followed by radiotherapy from January 2000 to December 2008 were included in this study. T...

 Abstract We report a 30 year old woman who presented with a painless preauricular mass of two months duration. Superficial parotidectomy was performed for the patient. Histological examination and immunohistochemical findings were in favor of mixed cellularity Hodgkin’s lymphoma (MCHD). According to this diagnosis the patient received local radiotherapy and during 4 months of follow-up no recu...

abstract we report a 30 year old woman who presented with a painless preauricular mass of two months duration. superficial parotidectomy was performed for the patient. histological examination and immunohistochemical findings were in favor of mixed cellularity hodgkin’s lymphoma (mchd). according to this diagnosis the patient received local radiotherapy and during 4 months of follow-up no recur...

Megavoltage electron beams represent an important treatment modality in modern radiotherapy, often providing a unique option in the treatment of superficial tumours (less than 5 cm deep). Electrons have been used in radiotherapy since the early 1950s, first produced by betatrons and then by microtrons and linacs. Modern high energy linacs typically provide, in addition to two megavoltage photon...

Recurrent haemorrhage into the subarachnoid space causes superficial siderosis, which clinically manifests as cerebellar ataxia, sensorineural hearing loss, and myelopathy. Two patients developed clinical, radiological, and biochemical evidence of superficial siderosis many years after surgery. One had two posterior fossa operations, a left temporal craniectomy, and radiotherapy for a presumed ...

Electron beam radiotherapy is the most widespread treatment modality todeal with superficial cancers. In electron radiotherapy, energy spectrum isimportant for modelling and accurate dose calculation. Since thepercentage depth-dose (PDD) a function of beam’s energy, reconstruction from curve represents an inverse problem.Thus, can be related to by means anappropriate mathematical model as Fredh...

BACKGROUND Primary ocular adnexal mucosa-associated lymphoid tissue lymphoma (POAML) is a rare disease. The purpose of this study was to evaluate the treatment outcome and patterns of failure of patients with early-stage POAML treated with radiotherapy. PATIENTS AND METHODS From 1995 to 2008, 53 patients with early-stage POAML were reviewed. Tumors were categorized as either superficial or ma...

BACKGROUND Surgical excision is the gold standard for cutaneous squamous cell carcinoma (cSCC), however its application is limited in specific cases. Superficial radiotherapy (RTx) is an alternative treatment option, but long-term follow-up data are limited. OBJECTIVE To determine the outcome of superficial RTx of cSCC in correlation to histological differentiation grade and tumor localizatio...