Doppler ultrasound findings in a patient with primary infertility and triorchidism.

Polyorchidism, presence of more than two testes in a scrotum, is a rare clinical entity. To date, about 200 cases have been reported in the literature. We report a case of triorchidism in a patient presenting with a 7-year history of primary infertility.

Magnetic resonance imaging (MRI) findings in white matter disease of brain.

Demyelinating and dysmyelinating white matter diseases are important components of neurological problems. Recently, Magnetic Resonance Imaging (MRI) has played a key role in diagnoses of white matter diseases. Therefore, the purpose of the current study is to evaluate the usefulness of MRI in determining the type and frequency of white matter disease.

Acardiac twins: a case series.

Acardiac twinning is a severe and rare complication of monochorionic placentation. The acardiac twin does not survive while mortality of the normal twin is about 50-70% as the normal twin has to provide circulation not only for itself but also for acardiac twin. Proper timing of the delivery is of prime importance to the survival of the normal fetus for which emphasis is placed on close sonographic monitoring for early antenatal diagnosis.

Diffuse bilateral thalamic astrocytoma.

Diffuse astrocytoma with bilateral thalamic involvement is extremely rare. We present a case of 10 years old female who presented with decreased mentation, dysarthria, decreased performance at school and later on with seizures. MRI scans were performed twice and were reported as Leigh's disease and hemimegalencephaly respectively.

Intra-abdominal desmoplastic small round cell tumor.

Intra-abdominal desmoplastic small round cell tumor (IDSRCT) is a unique, highly aggressive neoplasm that chiefly affects male adolescents and young adults and most frequently presents as a large abdominal mass with widespread peritoneal involvement at the time of diagnosis. We present two cases of IDSRCT in a young male and a female. Both typically presented with diffuse peritoneal involvement.

Cerebral venous system anatomy.

Cerebral venous system can be divided into a superficial and a deep system. The. superficial system comprises of sagittal sinuses and cortical veins and these drain superficial surfaces of both cerebral hemispheres.

Role of focused appendiceal computed tomography in clinically equivocal acute appendicitis.

Objective: To determine the accuracy of FACT (focused appendiceal computed tomography) in evaluation of acute appendicitis.

Methods: The study was conducted in Aga Khan University Hospital, Karachi, over a period of one year. Sixty-three patients with clinically equivocal acute appendicitis underwent thin-section non-enhanced helical CT.

Cerebral deep venous thrombosis: case report and literature review.

The case of a 28 years old woman presenting with headache, drowsiness and vomiting of a short duration, is presented. She was diagnosed as deep cerebral venous thrombosis on the basis of MRI findings. Treatment with heparin gave completed recovery.

Role of magnetic resonance imaging in lumbar spondylosis.

Objective: To assess the frequency of various MRI findings in patients with lumbar spondylosis and determine their association with symptoms of patients.

Design: Cross-sectional analytical study.

Place And Duration Of Study: Radiology Department,The Aga Khan University Hospital, Karachi, from January to December, 2002.

Transcatheter embolization of acute non-variceal gastrointestinal hemorrhage.

Objective: To determine the efficacy and safety of transcatheter embolization of nonvariceal gastrointestinal hemorrhage.

Design: Descriptive analytical study.

Place And Duration Of Study: Radiology Department, The Aga Khan University Hospital, Karachi, Pakistan, from October 1999 to August 2004.

Lhermitte-Duclos disease (dysplastic cerebellar gangliocytoma).

This case report describes an adult male presenting with ataxia. Dysplastic cerebellar gangliocytoma, the Lhermitte-Duclos disease, was diagnosed on neuroimaging. Diagnosis was confirmed on histopathology of surgically removed lesion.

Magnetic resonance imaging in the diagnosis and local staging of primary bone tumors.

Objective: To evaluate relationship of magnetic resonance (MR) imaging in the diagnosis and local staging of primary bone tumors with histopathological and surgical outcome.

Design: Cross-sectional comparative study.

Place And Duration Of Study: Radiology Department, The Aga Khan University Hospital, Karachi from December 1999 to March 2002.