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Biomedical subjects

R B Port

Publications and source records attributed to R B Port.

17 recordsLinked to original sources
PubMed1996

Forearm compartment syndrome due to automated injection of computed tomography contrast material.

Automated injection of computed tomography contrast material can produce a compartment syndrome if extravasation occurs. Unconscious patients and the elderly may be at particular risk. Selection of nonionic contrast material, careful evaluation of the intravenous administration site, and close monitoring of the patient during use of a power injector may help minimize or prevent extravasation injuries.

Aged↗
PubMed1987

Ectopic pregnancy: surgical-pathologic correlation with US.

The ultrasound (US) examinations of 53 patients with proved ectopic pregnancy were reviewed and compared with surgical and pathologic findings. The most common finding with US and surgery was free fluid. Hematosalpinx tended to have sharply defined margins, whereas free pelvic hematomas were poorly defined or filled the pelvis. The echogenicity of the clots was variable but generally in the same range of echogenicity as the uterus. A prominent decidual reaction occurred in 26% of the patients and had a variety of appearances.

Adnexal Diseases↗
PubMed1985

Separation of the distal humeral epiphysis in the neonate. A combined clinical and roentgenographic diagnosis.

Separation of the distal humeral epiphysis in the neonate or young child can be diagnosed confidently by combining roentgenographic and clinical information. Such diagnosis is critical, as two abnormalities included in the differential diagnosis--irreducible elbow dislocation and fracture to the lateral humeral condyle--often require open reduction, unlike distal humeral epiphyseal separation, which can be treated conservatively. We describe two patients and review the pertinent literature.

Birth Injuries↗
PubMed1983

Diagnosis and management of intraluminal duodenal diverticulum.

The descending part of duodenum is the principal site for an intraluminally projecting mucosal pouch or diverticulum, but this unusual lesion may also occur elsewhere in the upper gastrointestinal tract. We report three patients in whom a large intraluminal duodenal diverticulum (IDD) was diagnosed radiographically at the ages of 15, 27, and 68 years, respectively. Fiberoptic duodenoscopy was performed in the two symptomatic cases for the removal of impacted food from IDD or dilatation of its outflow aperture. Guidelines for the diagnosis and treatment of IDD are provided based on our experience and review of the pertinent literature.

Adolescent↗
PubMed1981

Detection of pneumoencephaly secondary to mechanical ventilation in neonates.

Two newborn infants with respiratory distress syndrome developed massive systemic air embolisms and pneumoencephaly. These complications occurred during positive-pressure ventilation therapy. Intracranial gas was probably due to the rupture of cerebral vessels secondary to systemic gas embolism. The diagnostic features of plain radiographs, computed tomography, and ultrasonography in the evaluation of this unusual entity are described. The importance of early CT scans of the head is emphasized.

Embolism, Air↗
PubMed1980

Iatrogenic intubation injuries of the upper gastrointestinal tract in adults.

Perforation of the hypopharynx, esophagus, and stomach complicated the insertion of flexible tubes in 11 adults. Nasogastric suction tubes were responsible for 5 instances of gastric perforation. Palliative intubation of obstructive carcinomas of the distal esophagus resulted in delayed perforation of the esophagus and stomach in 2 cases. The use of a Linton tube for decompression of bleeding varices caused esophageal rupture in 1 patient whereas 2 others developed pharyngoesophageal perforation due to misplaced endotracheal tubes. The remaining 1 case demonstrated penetration of a chest tube into the esophageal lumen. The radiographic features and mechanisms of these iatrogenic injuries are described and the pertinent literature is reviewed.

Adult↗
PubMed1978

Calcified primary tumors of the gastrointestinal tract.

The dominant pattern and location of calcifications occurring within 23 primary gastrointestinal tumors have been analysed and correlated with the data from the literature. The provided guidelines for radiologic diagnosis of such calcified tumors include: (1) a retrocardiac mass containing amorphous calcifications is typical of leiomyoma of the esophagus; (2) calcific deposits similar to that in uterine fibroids may be the feature of gastric leiomyoma or intestinal leiomyosarcoma; (3) sand-like deposits within the wall of the stomach or colon are characteristic of a mucinous adenocarcinoma; (4) clusters of phleboliths in the gastrointestinal wall suggest a hemangioma particularly if recurrent intestinal bleeding and cutaneous hemangiomas are associated; (5) sunburst type of calcification in the pancreas indicates a cystadenoma or cystadenocarcinoma of that organ; and (6) aggregates of granular calcifications in the liver are diagnostic for metastatic adenocarcinoma of the colon but may rarely be seen in a primary malignancy of the liver.

Adenocarcinoma↗
PubMed1978

Carcinoma of the pancreas occuring in a child: a case report with description of gray scale ultrasound findings.

This is a report of the gray scale ultrasound findings of pancreatic carcinoma occurring in a child. Although this tumor is rare, the preoperative diagnosis can be made if the physician is aware of this possibility. 99 mTc sulfur colloid radionuclide scan, liver spleen scan, gallium scan, and ultrasound examinations are helpful in distinguishing the site of origin of upper abdominal masses.

Child↗
PubMed1978

Scintigraphic evaluation of childhood malignancies by 67Ga-citrate.

The utility and limitations of 67Ga scintigraphy in children with solid tumors were evaluated. Thirty-five patients with malignancies (13 lymphoreticular neoplasms, 11 soft-tissue sarcomas, 8 neuroblastomas, and 3 primary bone tumors) had a 67Ga-citrate scan as part of their clinical evaluation. The sensitivity and specificity of the test were analyzed for the different tumor types. The overall sensitivity of the 67Ga-citrate scan for the lymphoma group was 87%. Higher values were obtained for the mediastinal and abdominal regions. Ninety-three per cent of the involved sites were correctly identified by 67Ga scintigraphy in the soft-tissue sarcoma group. Small lung metastases, however, were missed on scan. Thus, 67Ga scans should be complemented with chest radiographs and whole chest tomograms for both initial evaluation and follow-up in those patients. 67Ga had low sensitivity for neuroblastoma.

Adolescent↗
PubMed1977

Ischemic disease of the small bowel and colon associated with oral contraceptives.

The widespread use of hormonal contraceptive pills by young women has caused a documented increase in thromboembolic disorders. This article describes yet another of the drug-induced complications namely, the development of ischemic bowel disease in seven cases. The ischemic changes which involved the small intestine in three and the colon in four patients became reversible after conservative management and discontinuance of oral contraceptive agents. The importance of clinical and radiologic consideration of ischemic bowel disease in young females receiving birth control pills is emphasized.

Adult↗