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LAWRENCE S. MANN, M.S., M.D.; JOSEPH F. GIANNOLA, M.D.

AMA Arch Surg. 1957;74(2):245-250.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Anomalies of the urachus are occasionally encountered in surgical practice. Herbst¹ states that the earliest recorded case in the literature was reported by Cabral in 1550, but the first clear-cut description was by Tait² in 1886. Callanan³ in 1951 summarized the cases since Dudgeon collected 154 cases in 1940. Individual cases have since been reported by Getz and Thomas⁴ in 1950 and by Helsby⁵ in 1955.

The human embryo at the six somite stage of development forms a cloaca which is a common receptacle for urinary and gastrointestinal waste products. The allantois develops at the cephalic end of the cloaca. This latter structure is a vestigial remnant which is intimately related with the development of the placenta and umbilical cord. The urachus (elongated apex of the bladder) is continuous with the allantois at the umbilicus. After birth, the descent of the urinary bladder to the . . . [Full Text PDF of this Article]

Author Affiliations
Chicago

From the surgical service, V. A. Hospital, Hines, Ill., and Chicago Medical School. Attending surgeon, V. A. Hospital, and Clinical Assistant Professor of Surgery, Chicago Medical School (Dr. Mann); former resident in surgery, V. A. Hospital (Dr. Giannola).

Footnotes
Submitted for publication Aug. 16, 1956.

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