Post-traumatic sialoceles and mucoceles of the salivary glands.

Three cases of post-traumatic sialocele involving the parotid region and one case of post-traumatic mucocele involving the submandibular region are presented. Computed tomography (CT) with contrast showed enhancing borders after a few weeks. Cases earlier than 2 weeks from occurrence showed no enhancement because of the absence of a well-developed capsule.

Solitary pulmonary nodule in secondary syphilis.

A case of secondary syphilis with a solitary right upper-lobe nodule is presented. Patient presented without any pulmonary complaints or findings. This mass disappeared with residual scar after a full course of penicillin therapy.

Vertebral arch destruction in tuberculosis: CT features.

A case of tuberculosis initially involving the vertebral arch is presented, and this rare mode of presentation is contrasted to more typical radiographic presentation of Pott disease. The role of CT in delineating the extent of disease and in detecting complications such as paravertebral abscesses and cord compression is illustrated specifically and through a literature review.

Computed tomography in urothelial tumors of renal pelvis and related filling defects.

Our study includes 12 patients. Of these, six had transitional cell carcinoma, three patients with stones and three patients with blood clots. With the use of computed tomography we were able to arrive at a reasonable staging and diagnosis of the filling defects.

Superior mesenteric venous aneurysm.

A patient presented with recurrent upper gastrointestinal bleeding. Celiac and superior mesenteric angiography showed a superior mesenteric venous aneurysm, a normal-sized liver, an enlarged spleen, and esophageal varices. The patient gave no history of hepatitis or alcoholism.

Left lobe of the liver draping around the spleen: a pitfall in computed tomography diagnosis of perisplenic hematoma.

Computed tomography scanning has become one of the prime modalities in the diagnosis of trauma to the spleen (1-6). We present three cases of potential pitfall in computed tomography scan diagnosis. In the first case, computed tomography scan showed a high-attenuation perisplenic density in the superio-lateral region of the spleen compatible with a perisplenic hematoma.

Computed tomography in splenic hemorrhage.

Five cases of splenic hemorrhage are discussed. In the first two cases of acute splenic laceration, the perisplenic hematoma showed higher attenuation compared with splenic parenchyma, and after contrast injection attenuation of hematoma and splenic parenchyma were similar. The third case showed pericapsular and subcapsular hemorrhage at surgery.

Computerized tomography in intracardiac tumors.

Two cases of cardiac tumors were studied by computerized tomography. The first patient presented with cerebral embolization from left atrial tumor. Chest X-ray showed calcification in the region of the atria.

Diffuse posterior hyperostosis of the cervical spine with cord compression: a Forestier (DISH) variant.

A patient presented with signs and symptoms of cervical spinal cord compression. Computed tomography (CT) scan showed diffuse idiopathic hyperostosis of the posterior vertebral border of C4, C5, C6, and C7 cervical vertebrae, with severe spinal stenosis at C5 and C6 level. Computed tomography scan is the single most useful instrument for demonstrating the extent of bony proliferation and severity of spinal stenosis.

Benign superior vena cava syndrome caused by transvenous cardiac pacemaker.

A case of superior vena cava syndrome in an 84-year-old man caused by transvenous cardiac pacemaker is described. Computed tomograms showed lack of visualization of superior vena cava (SVC) due to thrombosis. Superior vena cavagram showed SVC obstruction with collateral circulation.