Varicosities as an etiology of tarsal tunnel syndrome and the significance of tinel's sign: report of two cases in young men and a review of the literature.

Two cases of tarsal tunnel syndrome in two young men with surgical and radiologic details are reported. The role of varicosities as a cause of tarsal tunnel syndrome and the significance of Tinel's sign are discussed through a large review of the literature.

Ectopic internal carotid artery presenting as an oropharyngeal mass.

Ectopic internal carotid artery (ICA) is a very rare variation. The major congenital abnormalities of the ICA can be classified as agenesis, aplasia and hypoplasia, and they can be unilateral or bilateral. Anomalies of the neck artery may be vascular neoplasms or ectopic position.

Patients with horizontal gaze palsy and progressive scoliosis due to ROBO3 E319K mutation have both uncrossed and crossed central nervous system pathways and perform normally on neuropsychological testing.

Background: Horizontal gaze palsy and progressive scoliosis (HGPPS) is caused by mutations of the ROBO3 gene, which encodes a receptor associated with axonal guidance during development. Although there is evidence for uncrossed cuneatal and corticospinal tracts in HGPPS, it is unclear whether other central nervous system pathways are involved.

Objective: To study two patients with HGPPS homozygotic for the ROBO3 E319K mutation using a variety of neurophysiological and neuropsychological tests.

Dosimetric characteristics of a 16-slice computed tomography scanner.

Standard CT dose measurements were performed on a Siemens Sensation 16 scanner. CT dose indices, free-in-air (CTDI(F)) and weighted (CTDI(W)), were measured in all available axial and helical beam collimations of the head and body scanning modes. The effect of tube current, high voltage, rotation time, beam collimation and pitch on the CT doses was investigated.