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Biomedical subjects

R D Dunbar

Publications and source records attributed to R D Dunbar.

6 recordsLinked to original sources

Episternal ossicles.

Eight hundred computed tomographic (CT) scans of the chest were reviewed, and 12 cases of episternal ossicles were found. Eight persons had paired ossicles, and four had unilateral ossicles. The overall frequency in the study population was 1.5% (men, 1.4%; women, 1.7%). Episternal ossicles represent a normal variant and should be distinguished from fracture fragments, sequestra, foreign bodies, calcified lymph nodes, or vascular calcifications.

Female

Radiologic appearance of compromised thoracic catheters, tubes, and wires.

Radiology in the acute care setting has become intimately related to evaluation of the integrity and correct placement of catheters, tubes, and wires in the chest. Radiographic findings of these entities and their related complications are reviewed in this article, and common and uncommon examples and illustrations from the innumerable variations of compromise are presented.

Adolescent

Radiologic signs of the 4p- (Wolf) syndrome.

The improved Giemsa-trypsin banding technique was used to differentiate the 4p- (Wolf) from the 5p- (cri du chat) syndrome. New radiographic findings of polydactyly, cervical ribs, and fusion defects of the elbows, ribs, and spine are presented in a girl with 4p- syndrome with 45 chromosomes and a B4/G22 translocation [45, XX, -4, -22, +t(4p22q)].

Abnormalities, Multiple