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Biomedical subjects

S A Roback

Publications and source records attributed to S A Roback.

15 recordsLinked to original sources
PubMed1994

Thyroglossal duct cysts and branchial cleft anomalies.

Thyroglossal duct cysts and branchial cleft anomalies are important in the differential diagnosis of cervical lesions. Both lesions are common and are seen more commonly in the child than in the adult. Considerable discomfort and morbidity may be associated with severe infections occurring in both of these lesions. Of importance is the observation that once these congenital cysts become infected, subsequent surgical removal is very difficult, and recurrence may result. For these reasons it is essential that the clinician become familiar with the embryology of these lesions, which is vital to the understanding of them. In addition, the development of skills in diagnosing and managing this condition is essential.

Adult↗
PubMed1991

Spontaneous, isolated intestinal perforations in neonates with birth weight less than 1,000 g not associated with necrotizing enterocolitis.

From January 1986 through December 1988, we have seen 7 cases of isolated intestinal perforation in 250 infants with birth weights less than 1,000 g (3% incidence) without histological or clinical evidence of necrotizing enterocolitis (NEC). Patients had a mean birth weight of 670 g, gestational age of 25.1 weeks, and sustained a perforation at a chronological age of 10.4 days. No infants had been fed. A definite, blue-discolored abdomen was the only consistent clinical sign (n = 7). Free intraperitoneal air on radiograms was rarely observed (n = 1). Abdominal ultrasounds (n = 3) and metrizamide contrast studies (n = 3) were not diagnostic. The presence of an umbilical artery catheter (7/7), falling hematocrit (6/7), thrombocytopenia (5/7), and a positive diagnostic paracentesis were most commonly found. In 6 of 7 patients, this perforation was associated with coagulase-negative staphylococcal sepsis. Surgical or histological diagnosis showed focal perforation in either the terminal ileum (n = 4) or the transverse and descending colon (n = 3). Survival was 3 of 7; 2 patients died of intracranial hemorrhage and 2 died of Candida sepsis. We conclude that (1) intestinal perforation can occur in the absence of NEC; (2) bluish discoloration of the abdomen is the most reliable clinical finding; and (3) perforation may be associated with coagulase-negative staphylococcal infection.

Colonic Diseases↗