Schwannomas are slow growing, encapsulated neoplasms that arise from the nerve sheath. A vast majority of these benign neoplasms occur in the head and neck region, most commonly involving the 8th cranial nerve. Schwannomas arising from the base of tongue are very rare and, thus, can easily escape the list of differential diagnosis for a posterior tongue mass. A systematic approach is recommende...

UNLABELLED Pancreaticoduodenectomy is the procedure of choice for tumors of the pancreatic head and periampullary region. During pancreaticoduodenectomy, early neck division may be inadequate in case of hepatic artery anatomic variants, suspected involvement of the superior mesenteric vessels or intraductal papillary mucinous neoplasms. MATERIAL AND METHODS We describe our early approach to t...

Little is known regarding the molecular genetic events in head and neck carcinoma. Epidemiological evidence suggests that both alcohol and tobacco use are related to the development of these neoplasms, and viral infections have also been postulated to play a role in some tumors. Loss of p53 tumor suppressor gene function has been found in many malignancies and can occur through either gene muta...

background esophageal, stomach, and colorectal cancers are commonly lethal gastrointestinal tract (git) neoplasms, causing almost two million deaths worldwide each year. some environmental risk factors are acknowledged; however, genetic defects can significantly contribute to predisposition to git cancers. accordingly, recent works have shown that single-nucleotide polymorphisms (snps) within m...

S19 ENDOSCOPIC ULTRASOUND / VOLUME 6 / SUPPLEMENT 1 / AUGUST 2017 2.7 ± 1.7 cm. Most patients were asymptomatic. The type of cystic lesions was intraductal papillary mucinous neoplasm (IPMN; n = 35), serous cystadenoma (n = 18), mucinous cystic neoplasm (MCN; n = 12), solid pseudopapillary epithelial neoplasm (SPEN; n = 9), cystic degeneration of other tumors (n = 4), simple cyst (n = 4), infec...

Brain Injury Mechanisms of Brain Injury Hypoxia and Ischemia Excitatory Amino Acid Injury Cerebral Edema Increased Intracranial Volume and Pressure Brain Herniation Hydrocephalus Traumatic Head and Brain Injury Skull Fractures Traumatic Brain Injury Manifestations of Global Brain Injury Anatomic and Physiologic Basis of Consciousness Reticular Activating System Levels of Consciousness Other Man...

The differential diagnosis of midline nasal masses includes inflammatory lesions, post-traumatic deformities, benign neoplasms, malignant neoplasms, congenital and vascular masses. Midline congenital lesions of the nose are rare congenital anomalies. Their incidence is estimated at 1 per 20,000 to 40,000 births consisting of gliomas, encephaloceles, and nasal dermoid sinus cysts. Nasal dermoid ...