the liver is an organ at risk (oar) in radiotherapy of thoracic and abdominal tumors such as gastric, distal esophagus, lower lung and breast, bile duct, pancreas and whole abdomen. in this study the alteration in liver functional tests (lft) of these patients during radiotherapy was investigated. to that end, the level of serum aspartate aminotransferase (ast), alanine aminotransferase (alt), ...

  Background Hepatoblastoma is a common liver malignancy in children and commonly presents with primary tumors. In hepatoblastoma, lung is the most common place to metastasis. Chemotherapy have led to many improvements in the local control of hepatoblastoma. A main goal of treatment for hepatoblastoma is to achieve complete tumor resection. Case Presentation The patient was a 2.5 years old boy ...

background: ovarian masses represent a range of pathology from benign cyst to highly aggressive malignant tumors. it has been estimated that gynecologic malignancy account for approximately 2% of all types of cancer in children, 60-70% of these lesions arise in the ovary.  methods: all ovarian masses which were resected or biopsied in mofid children's hospital from 2002 to 2012 were review...

‎this paper presents an application of partial differential equations(pdes) for the segmentation of abdominal and thoracic aortic in cta datasets. an important challenge in reliably detecting aortic is the need to overcome problems associated with intensity inhomogeneities. level sets are part of an important class of methods that utilize partial differential equations (pdes) and have been exte...

INTRODUCTION Giant intradural extramedullary schwannomas of the thoracic spine are not common. Schwannomas, that is, tumors derived from neoplastic Schwann cells, and neurofibromas represent the most common intradural extramedullary spinal lesions. We report the case of a patient with a giant thoracic schwannoma presenting unusually with acute abdominal pain and with delayed neurological impair...

Objective The purpose of this study was to evaluate CTV-PTV margins of tumors for tomotherapy. Methods Setup errors were analyzed for 151 patients receiving helical tomotherapy treatment. 53 patients had head and neck tumors, 45 had thoracic tumors, 20 had abdominal tumors, and 33 had pelvic tumors. The setup errors were calculated in six directions, i.e. +X (left), -X (right), +Y (head), -Y ...

Abstract Background: Abdominal tumors are still a diagnostic problem in children. This study was conducted to assess the presentation and types of childhood intra abdominal tumors in children in Shiraz. Materials and Methods: Participants of this historical cohort study consisted of 298 children aged between 1.5 months to 15 years old who were diagnosed with abdominal mass between March...

A 54-year-old woman with long-lasting pleural effusion developed abdominal distention due to ascites from bilateral ovarian tumors. The patient had undergone breast-conserving surgery and axillary lymph node dissection for left breast cancer in October 2000, and had developed left pleural effusion in July 2006. Cytological examination of the pleural effusion found no malignant cells. Thoracic d...

Precise tumor staging encompassing the patient’s entire body is essential in cancer management. While more advanced imaging modalities for tumor staging are available, in veterinary medicine, three-view thoracic radiography and abdominal ultrasonography are conventionally performed to screen for pulmonary and abdominal metastases. The objective of this retrospective study was to describe the us...

PURPOSE To study the pattern of lymph node metastases after esophagectomy and clarify the clinical target volume (CTV) delineation of thoracic esophageal squamous cell carcinoma (ESCC). METHODS AND MATERIALS Total 1077 thoracic ESCC patients who had undergone esophagectomy and lymphadenectomy were retrospectively examined. The clinicopathologic factors related to lymph node metastasis were an...