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Biomedical subjects

R Desmarais

Publications and source records attributed to R Desmarais.

5 recordsLinked to original sources
PubMed1989

Peripheral upper lobe collapse in adults.

Atypical (peripheral) upper lobe collapse, simulating loculated apical pleural effusion or other localized pleural disease, occurs when the collapsed lobe maintains its adherence to the lateral chest wall. Fifteen such cases are known to have been reported, 12 in children (ten of them infants) and three in adults. Two additional cases, occurring in adults with carcinoma of the bronchus, are presented here. In one case, adherence of the visceral to the parietal pleura was shown to be due to malignant infiltration. In both cases, the margination of the collapsed lobe, which on images resembles apical pleural disease, was attributed to hyperexpansion of the superior segment of the lower lobe.

Carcinoma, Squamous Cell↗
PubMed1982

The role of gonadal venography in the management of the adult with non-palpable undescended testis.

Selective gonadal venography was performed on 9 adult patients with 11 nonpalpable undescended testes. The gonad was accurately localised pre-operatively on 7 occasions. Testicular agenesis was predicted in 2 instances and strongly suggested in 2 others. Four failures were recorded, 2 on the right and 2 on the left. Accurate pre-operative localisation shortened operative time and reduced the extent of the surgical exploration. The demonstration of agenesis of the testis may obviate the need for surgery.

Adolescent↗