A new variant of Todani type I choledochal cyst. Imaging evaluation.

Background And Aim: Choledochal cysts are congenital segmental aneurysmal dilatations of any portion of bile ducts, most commonly of the main portion of the common bile duct. The classification system of choledochal cysts is based on the site of the cyst or dilatation and currently includes 5 major types. The purpose of our study is to describe the imaging findings of a new variant of choledochal cyst.

Splenic-gonadal fusion in a 6-year-old boy, confirmed by Tc-99m sulfur colloid scanning.

Splenic-gonadal fusion is a rare congenital anomaly, in which splenic tissue is connected to the gonad. It is almost always on the left side, is difficult to be recognized, and unfortunately the final diagnosis is confirmed after an unnecessary orchiectomy in one-third of the cases. We report a case of splenic-gonadal fusion in a 6-year-old boy, referred for a palpable mass at the left testicle.

Magnetic resonance imaging and ultrasonographic evaluation of retinal detachment in orbital uveal melanomas.

We assess the role of ultrasonography (US) in the evaluation of retinal detachment in patients with uveal melanomas, in correlation with magnetic resonance imaging (MRI) findings. Twenty-six patients (13♂ and 13♀) with uveal melanomas underwent MRI and US examination. The signal intensity of the tumors and retinal detachments were depicted using MRI.

Evaluation of popliteal arteries with CT angiography in popliteal artery entrapment syndrome.

Background: Popliteal artery entrapment is an uncommon clinical entity that occurs due to compression of the popliteal artery by adjacent muscle and tendinous structures. Early diagnosis should be established through a combined approach of careful physical examination and history-taking, duplex ultrasonography, and CT angiography.

Patients And Methods: We have studied retrospectively 16 patients of popliteal artery entrapment syndrome, 9 men and 7 women.

Enhancement of virchow-robin spaces. An MRI evaluation.

Virchow-Robin spaces are enclosed spaces filled with interstitial fluid and covered with pia that accompany arteries, arterioles, veins and venules as they perforate the brain. They are round, linear or punctuate areas depending on the image that parallel cerebrospinal fluid attenuation or signal intensity. They are classically described as isointense to cerebrospinal fluid on images obtained with all pulse sequences.

CT guided percutaneous adrenal biopsy for lesions with equivocal findings in chemical shift MR imaging.

Purpose: The aim of this study was to evaluate the usefulness of CT guided adrenal biopsy in patients with equivocal MR chemical shift imaging findings.

Material And Methods: Fifty seven patients, 32 with history of malignancy and 25 without history of malignancy, 30 men and 27 women (33-82 years, mean age:58.8 years), with equivocal findings in chemical shift MR imaging, were subjected to CT guided percutaneous adrenal biopsy.

Enhancement of robin-virchow spaces MRI evaluation.

The perivascular spaces are normally microscopic. Even in normal brain some Robin-Virchow spaces are usually seen in the area of substantia innominata at the level of anterior commissure. Many pathologic states result in abnormal dilatation with an increased number of spaces visible on MRI imaging.