Testicular Arteriovenous Malformation: Gray-Scale and Color Doppler Ultrasonography Features

Intratesticular arteriovenous malformations (AVMs) are extremely rare benign incidental lesions of the testis. Ultrasonography (US) generally reveals a hypoechoic solid mass within the testicular parenchyma. We describe a patient with intratesticular AVM which was found incidentally during workup for infertility. The gray-scale and Doppler US appearance of an intratesticular AVM and the differential diagnosis have been presented. Based on the gray-scale, US appearance differentiation from malignant testicular tumors is difficult. Doppler US examination aids in the diagnosis by demonstrating the vascular nature of the tumor

Cerebrospinal fluid flow dynamics in patients with multiple sclerosis: a phase contrast magnetic resonance study

Cerebrospinal fluid (CSF) flow dynamics, which supposedly have a strong relationship with chronic cerebrospinal venous insufficiency (CCSVI), might be expected to be affected in multiple sclerosis (MS) patients. In this study, CSF flow at the level of the cerebral aqueduct was evaluated quantitatively by phase contrast magnetic resonance imaging (PC-MRI) to determine whether CSF flow dynamics are affected in MS patients. We studied 40 MS patients and 40 healthy controls using PC-MRI. We found significantly higher caudocranial(p=0.010) and craniocaudal CSF flow volumes(p=0.015) and stroke volume (p=0.010) in the MS patients compared with the controls. These findings may support the venous occlusion theory, but may also be explained by atrophy-dependent ventricular dilatation independent of the venous theory in MS patients

Sonography of scrotal abnormalities in adults: an update

The purpose of this pictorial review is both to demonstrate newly described conditions such as whirlpool sign, fibrosis, benign testicular lobulation, and effect of hydrocele on the testis and to scrutinize usual and unusual scrotal abnormalities to bring the reader up to date. The use of ultrasonography will give the correct diagnosis in most conditions providing that it is used appropriately. Familiarity with the ultrasonography features of both common and newly described entities is important for the management of scrotal abnormalities