Periosteal desmoid.

Periosteal desmoid is a benign tumor like reactive fibrous lesion developed by repeated micro trauma. We describe the case of a 14 year old boy with pain in his right knee who underwent plain radiography followed by radionuclide bone scan. The final diagnosis was that of periosteal desmoid.

Evaluation of erectile dysfunction with color Doppler sonography.

Objective: To assess the role of Color Doppler Sonography in the evaluation of erectile dysfunction.

Methods: A cross-sectional study was conducted at the Radiology Department, Aga Khan University Hospital Karachi from 5-6-2002 to 2-9-2003. All consecutive patients presenting with erectile dysfunction and undergoing penile color Doppler evaluation with injection PGE1 20 mcg were included in this study.

Colorectal carcinoma, preoperative evaluation by spiral computed tomography.

Objectives: To assess the capability of spiral computed tomography (CT) scan in preoperative evaluation of colorectal carcinoma (CRC).

Methods: A cross sectional study on 52 patients with recent histopathologic diagnosis of CRC was conducted over a period of one year at the Aga Khan University Hospital, Karachi. All these patients underwent spiral CT with oral and intravenous contrast administration.

Role of computed tomography in acute pancreatitis and its complications among age groups.

Objective: To determine value of CT scan in diagnosis of acute pancreatitis, its complications and to correlate with severity among different age groups.

Methods: The study was carried out from August 2001 to August 2002 at the Radiology Department, Aga Khan University Hospital. A total of 40 patients (33 male and 7 female) with age range from 16-71 years were divided in three groups.

Mesenteric panniculitis.

Mesenteric panniculitis is a rare condition of unknown etiology that causes inflammation of the adipose tissue in the mesentery. We describe a case in which mesenteric panniculitis was diagnosed on the basis of imaging and resolved spontaneously.