A retrospective comparative study of tunneled haemodialysis catheters inserted through occluded or collateral veins versus conventional methods.

Tunneled hemodialysis catheters become essential in dialysis access when there is no possibility of using a functioning arteriovenous fistula. Collateral or occluded veins visible on ultrasound are used for puncture and passage of catheters into the central venous system. Chronically occluded veins are crossed with guidewires to allow dilatation and subsequent passage of hemodialysis catheters.

Imaging features of calvarial tuberculosis: a study of 42 cases.

Background And Purpose: Tuberculosis of the calvaria is a rare entity, and only anecdotal reports describing its imaging features have been previously published in the literature. We report the role of conventional radiography and CT findings on in the evaluation of calvarial tuberculosis in 42 cases.

Methods: Forty-two cases of pathologically verified calvarial tuberculosis were analyzed retrospectively by using conventional radiography and CT imaging.

An unusual case of CV junction tuberculosis presenting with quadriplegia.

Study Design: Isolated tubercular involvement of craniovertebral junction in a human immunodeficiency virus-positive patient causing paraplegia and sudden death with radiologic features is presented.

Objectives: Isolated involvement of craniovertebral junction by tuberculosis causing quadriparesis is a rare entity. The role of imaging features is presented in diagnosis of craniovertebral junction tuberculosis, which is a treatable disease.

Twin gestation in one horn of a bicornuate uterus.

We report a rare case of twin pregnancy in the same horn of a bicornuate uterus. This patient's uterine malformation was detected for the first time when she experienced abdominal pain at 6 weeks of amenorrhea. Transabdominal and transvaginal sonographic examinations were performed.

Sonographic findings in a duodenal duplication cyst.

We report the sonographic features of a duodenal duplication cyst containing ectopic pancreatic tissue in a 5-month-old boy who presented with symptoms of partial gastric outlet obstruction. Sonography revealed an anechoic, double-walled, bilobed cystic lesion containing debris in the pyloroduodenal region. There was sound through-transmission but no air or communication with the gastrointestinal tract.

Renal fungal ball: an unusual sonographic finding.

Fungal infections of the urinary tract tend to occur in the drainage structures instead of the renal parenchyma. In patients with systemic candidiasis, the kidney is vulnerable to the formation of cortical abscesses or obstructive intrarenal masses ("fungal balls"), usually at the ureteropelvic junction. We describe the case of a boy who presented with dysuria, fever, and chills.

Isolated tuberculosis of posterior elements of spine: magnetic resonance imaging findings in 33 patients.

Study Design: Study of magnetic resonance imaging (MRI) of tuberculosis of spine to determine the incidence and features of isolated tuberculous involvement of the posterior spinal elements.

Objective: To describe the MRI findings in patients with isolated tuberculous involvement of the posterior spinal elements.

Summary Of Background Data: Spinal tuberculosis is more common in the eastern countries than in the western world.