Hydatid disease of the liver with portal vein invasion mimicking portal vein thrombosis.

Hydatid cyst disease is a zoonosis caused by the parasite Echinococcus. It may infest any organ of the body, but it most frequently involves the liver, lungs, and nervous system. Portal vein involvement by hydatid cyst disease is extremely rare with only five cases published in the English literature to our knowledge.

Meandering right pulmonary vein associated with retrocaval ureter and vertebral fusion anomalies.

We present multimodality imaging of a meandering right pulmonary vein in a 29-year-old female patient. It was associated with right retrocaval ureter causing hydronephrosis and stone formation, vertebral fusion anomalies and corrected cardiac anomalies (patent ductus arteriosus and ventricular septal defect). To the best of our knowledge, only a few meandering right pulmonary vein have been presented in the literature until now and this is the first reported case that is associated with retrocaval ureter and vertebral fusion anomalies.

Magnetic resonance spectroscopy features of Heschl's gyri in patients with unilateral acoustic neuroma: preliminary study.

Rationale And Objectives: To evaluate neurochemical alterations in Heschl's gyri and determine the most affected side in case of unilateral acoustic neuroma using magnetic resonance spectroscopy (MRS).

Materials And Methods: Fifteen patients with unilateral acoustic neuroma were studied. Following routine cranial MRI sequences, MRS of Heschl's gyri on tumor and nontumor sides was obtained.

The effect of obesity on brain diffusion alteration in patients with obstructive sleep apnea.

Purpose: We investigated diffusion alterations in specific regions of the brain in morbid obese, obese, and nonobese OSA patients and searched whether there is a correlation between BMI and ADC values.

Materials And Methods: DWIs of 65 patients with OSA were evaluated. The patients were classified according to BMI as morbid obese (n = 16), obese (n = 27), and nonobese (control, n = 22) groups.

The infragluteal sulcus: a histologic and ultrasonographic study.

Unlabelled: The buttocks are a major component of sexual attraction, and they have their place in the concept of beauty in most cultures and ethnic groups. The infragluteal sulcus, an important part of the gluteal region, determines the attractiveness of the buttocks. For that reason, any small change in the infragluteal sulcus makes a major cosmetic difference in the morphology of the buttock.

MR spectroscopy features of brain in patients with mild and severe obstructive sleep apnea syndrome.

Purpose: We investigated whether there are differences in metabolite ratios of different brain regions between mild and severe obstructive sleep apnea (OSA) patients.

Materials And Methods: A total of 17 mild OSA and 14 severe OSA patients were enrolled. N-acetyl aspartate (NAA)/creatine (Cr), choline (Cho)/Cr and NAA/Cho ratios were calculated by using multivoxel magnetic resonance spectroscopy (MRS) (TR: 1500, TE: 135 ms) from hippocampus, putamen, insular cortex, thalamus and temporal white matter.

Brain diffusion changes in obstructive sleep apnoea syndrome.

Background: Obstructive sleep apnoea syndrome (OSAS) is a disorder characterized by repeated apnoeic episodes during sleep. Neurocognitive changes secondary to OSAS are likely to occur due to hypoxia in certain brain locations. Advances in magnetic resonance imaging technology, such as diffusion-weighted imaging (DWI), enable non-invasive and accurate identification of OSAS-induced changes.

CT angiography evaluation of unusual transorbital penetrating injury: a toothbrush.

Orbital penetrating injuries may cause significant harm to optic nerves and eyeball as well as to the brain and cerebral vasculature. Defining surrounding neurovascular structures by CT angiography (CTA) is important for surgical removal. We present an uncommon case of a 3-year-old child with a penetrating orbital injury caused by a toothbrush.

MRI findings in thoracic outlet syndrome.

We discuss MRI findings in patients with thoracic outlet syndrome (TOS). A total of 100 neurovascular bundles were evaluated in the interscalene triangle (IS), costoclavicular (CC), and retropectoralis minor (RPM) spaces. To exclude neurogenic abnormality, MRIs of the cervical spine and brachial plexus (BPL) were obtained in neutral.

Maple syrup urine disease: diffusion-weighted MRI findings during acute metabolic encephalopathic crisis.

Maple syrup urine disease (MSUD) is caused by a genetic defect of branched-chain amino acids, which include leucine, isoleucine and valine. We report diffusion-weighted imaging (DWI) findings in a newborn child with MSUD who presented with acute metabolic encephalopathic crisis. DWI (b = 1,000 s/mm(2)) showed high signal localized within the myelinated white matter (WM) areas including the cerebellar white matter, pons, bulbus, cerebral peduncles, lentiform nucleus, posterior limbs of the internal capsules, corona radiata and bilateral perirolandic cortex.