THE ANOMALIES of the alimentary tract known under the term of "duplications" are not frequently seen,1 except perhaps in a specialty institution. Even so, most of the larger series of these anomalies were collected over a period of several years. Two of the longer series are those of Gross and associates2 who studied 67 cases seen in the Children's Hospital of Boston, during a period of 22 years, and Sieber,3 in 1956, who reported a total of 25 cases from a pediatric service, collected in the course of 21 years.
These malformations may be symptomless or may cause a variety of signs and symptoms depending on the site and type of the anomaly. The symptoms may range from bouts of abdominal pain to complete or partial obstruction of a portion of the gastrointestinal tract. Occult hemorrhage may lead to severe unexplained anemia or, in some cases, to
RIOS-DALENZ JL, KRESS JW, MONTGOMERY LG. Duplication of Small Intestine With Perforated Peptic Ulcer In Ectopic Gastric Mucosa. Arch Surg. 1965;91(5):863–866. doi:10.1001/archsurg.1965.01320170157025
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