Renal cell carcinoma (RCC) is a relatively rare cancer, representing 2–3% of the neoplasms in the adult population. Metastasis is in 30% of cases synchronous to the diagnosis of RCC. The most frequent common sites of metastasis include lung, liver, bone, brain and adrenal gland [1]. Brain metastasis from RCC is responsible for significant mortality [2]. RCC is characterized by the inactivation ...

Objective(s): In this study, we aimed to describe the characteristics of portal vein tumor thrombosis (PVTT), complicating hepatocellular carcinoma (HCC) in contrast-enhanced FDG PET/CT scan. Methods: In this retrospective study, 9 HCC patients with FDG-avid PVTT were diagnosed by contrast-enhanced fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT), which is a comb...

    Abstract   The Intraparenchymal schwannomas are very rare tumors with only 52 reported   cases . We describe a 38 years old man with eight months history of poorly controlled   seizures despite of medical therapy. On brain CT scan a 1.5 x 1.5 cm hypodense enhancing lesion was seen in right posterior-inferior frontal lobe. On brain MRI the lesion   was hypointense in T1 and hyperintense in T...

Brain metastasis is a significant cause of morbidity and mortality and a critical complication of non-central nervous system primary carcinoma. The present study describes the clinical case of a 46-year-old male with lung cancer and life-threatening brain metastases. The patient was diagnosed with lung cancer with a clinical stage of T2N0M1 (stage IV). Six months after the initial diagnosis and...

background traumatic brain injury (tbi) is a worldwide problem, especially in countries with high incidences of road traffic accidents such as iran. patients with a single occurrence of tbi have been shown to be at increased risk to future tbi. this study presents incidences and characteristics of repeated traumatic brain injury (rtbi) in iran. materials and methods during one year, all admitte...

The image processing tools are extensively used on the development of new algorithms and mathematical tools for the advanced processing of medical and biological images. Given an MRI scan, first segment the tumor region in the MRI brain image and study the pixel intensity values. A detailed procedure using Matlab script is written to extract tumor region in CT scan Brain Image and MRI Scan Brai...

background paranasal sinus ct has high sensitivity and specificity for sinusitis. however, this modality is costly and involves greater radiation exposure than plain radiographs. objectives we tried to compare 10-cut limited ct scan and standard ct scan in the diagnosis of sinusitis. materials and methods we conducted a cross sectional case series from august to december 2010 on 150 patients wi...

Objectives: Presence/absence of cervical lymph node metastasis plays a critical role in prognosis and survival of patients with oral squamous cell carcinoma (SCC). This study was designed to assess the diagnostic accuracy of computed tomography (CT) scan for detection of cervical lymph node metastasis in oral SCC in comparison with histopathological analysis after neck dissection Methods: In...

BACKGROUND A report of loss of consciousness (LOC) is frequently considered reason enough to obtain a computed tomography (CT) scan in the evaluation of head trauma. We conducted this study to reduce exposure to radiation from CT, while still not overlooking clinically significant injuries. OBJECTIVE The objective of the study is to determine the correlation between LOC status and brain CT sc...