introduction: 99mtc-mibi has been proposed for use as an imaging agent for various tumors, including breast cancer, lung cancer, lymphomas, melanomas and brain neoplastic lesions. brain tumors are very common and radiotherapy being major part of treatment following surgery. after radiotherapy, deteriorating clinical status can be due to either radiation necrosis or recurrent tumor. computed tom...

castleman’s disease, giant lymph node hyperplasia, is a kind of benign lymphoproliferative disease with gentle behavior. its etiology and prevalence are unclear. this rare disease is usually found in mediastinal area asymptomatically and incidentally. it is also rare to see this tumor in the retroperitoneum. in this study, we have introduced a 34-year-old woman who referred just with occasional...

osteoid osteoma is a benign bone tumor that rarely involves joints. although there are several reports of arthroscopic osteoid osteoma excisions, to our knowledge, there are no reports of this type of treatment for osteoid osteoma in carpal bones. we report two cases of arthroscopic (a person who had a pain in the left wrist and the other one with carpal tunnel syndrome) with excision of osteoi...

Background: Presurigical planning for glioma tumor resection and radiotherapy treatment require proper delineation of tumoral and peritumoral areas of brain. Diffusion tensor imaging (DTI) is the most common mathematical model applied for diffusion weighted MRI data. Neurite orientation dispersion and density imaging (NODDI) is another mathematical model for DWI data modeling.Objective: We stud...

  Abstract   Meningeal melanocytoma is a rare tumor of nervous system, which originates from leptomeningeal   melanocytes. The locations of melanocytoma in the nervous system are most frequently in the posterior fossa or along the spinal cord, and usually appear as an extra-axial mass. The manifestations of tumor are most often due to its compressing effect on adjacent nervous structures that c...

Uterine leiomyoma is the most common benign tumor of genital tract. The etiology of myomas is unknown. Leiomyoma shows a broad spectrum of radiographic appearances depending on the number, size, and location of the tumor. The diagnostic method for uterine leiomyomas is based primarily on the clinical situation. Despite of the varied diagnostic options such as; transvaginal sonography, sonohyste...