Nilima Dash

Magnetic resonance imaging in acute tendon ruptures

The diagnosis of acute tendon ruptures of the extensor mechanism of the knee or the Achilles tendon of the ankle may usually be made by clinical means. Massive soft tissue swelling accompanying these injuries often obscures the findings, however. Magnetic resonance imaging (MRI) can rapidly demonstrate these tendon ruptures. Examples of the use of MRI for quadriceps tendon, and Achilles tendon rupture are presented.

Ultrasonographic findings in acute acalculous cholecystitis

Acute acalculous cholecystitis (AAC) is usually seen as a complication of major surgery or trauma. Although this entity is well-known in the surgical literature, little has been written about it in the radiologic literature. A review of patient records from 1975 through 1982 revealed 16 patients with pathologically confirmed AAC on whom at least 1 sonographic study had been performed. Thickening of the gallbladder wall, a subserosal “halo” of edema, pericholecystic abscess, and marked gallbladder distention were consistent findings in AAC. In the proper clinical setting, these otherwise nonspecific findings allow a prompt and accurate diagnosis.

MRI diagnosis of aortocaval fistula secondary to ruptured infrarenal abdominal aortic aneurysm

MRI was utilized to demonstrate the exact site of fistula between a ruptured saccular aneurysm of the infrarenal abdominal aorta and the inferior vena cava in a 64-year-old man.

Leiomyosarcoma of the superior vena cava: Diagnosis by cardiac gated MR

A primary leiomyosarcoma of the superior vena cava was diagnosed with magnetic resonance imaging. MRI demonstrated tumor extension into the right heart and innominate veins and compared favorably with the superior vena cavagram.

Extension of hepatic matastatic tumor along a biliary drainage catheter tract: Case report

Extension of hepatic metastatic tumor along a biliary drainage catheter tract is an unusual occurrence. We believe this is the first report of such a case presenting as a calcified, subcutaneous mass at the catheter entry site.

MRI appearance of esophageal duplication cyst.

Magnetic resonance imaging (MRI) was utilized to demonstrate an esophageal duplication cyst of the midesophagus in a 61-year-old woman. The radiographic, computed tomographic, and MRI features are illustrated.

Coarctation of the aorta associated with intercostal artery aneurysms—computed tomography diagnosis

A coarctation of the thoracic aorta associated with intercostal collateral arterial aneurysms was diagnosed with computed tomography in a mildly hypertensive 59-year-old woman.

Uterine rupture secondary to trauma : CT findings

We describe a case of a ruptured gravid uterus, secondary to motor vehicle accident, in a 20-year-old woman. Maternal and fetal injuries associated with blunt trauma are described along with the use of CT in pregnant patients.

Magnetic resonance imaging appearance of primary squamous cell carcinoma of the breast

Primary squamous cell carcinoma is a rare form of carcinoma of the breast. This article reports on two such lesions with their appearance in magnetic resonance imaging and reviews the scant English literature of the past 10 years. Most of these tumors are circumscribed and have areas of necrosis. The prognosis in patients with this disease is the same as that of adenocarcinoma of the same size and stage.

Segmental absence of the aortic wall: Magnetic resonance imaging sign of aneurysm

A thin-walled, posttraumatic false aneurysm of the descending aorta in a 32-year-old man was obvious on chest radiography, computed tomography, and aortography. The wall of the aneurysm was not visualized on a magnetic resonance imaging study. However, a segmental absence of the lateral wall of the descending aorta indicated the level of the abnormality. This finding was not observed on 100 consecutive normal aortas studied with gated magnetic resonance imaging. It was observed in 2 of 50 normal aortas on nongated thoracic magnetic resonance imaging.