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A Rare Case of Adult-Onset Rectosigmoid Hypoganglionosis

Mohammed Yousef Aldossary, Antonio Privitera, Obai Elzamzami, Nemat Alturki, Khalid Sabr

(Department of General Surgery, Colorectal Surgery Section, King Fahad Specialist Hospital, Dammam, Saudi Arabia)

Am J Case Rep 2018; 19:557-561

DOI: 10.12659/AJCR.907109

BACKGROUND: Intestinal hypoganglionosis is very rare and accounts for 3% to 5% of all classified congenital intestinal innervation disorders. Isolated hypoganglionosis of the colon is a particularly rare form of the disease, and differential diagnosis includes association with Hirschsprung’s disease and chronic intestinal pseudo-obstruction (CIPO) related to visceral myopathies. Most cases are diagnosed at an early age or in childhood with only a few cases reported in adults.
CASE REPORT: We report a case of isolated hypoganglionosis of the rectum and sigmoid presenting as an emergency with acute intestinal obstruction in a 20-year-old male patient. A history of chronic constipation was reported since childhood, but this condition had never been investigated. A preoperative CT scan showed a megasigmoid and megarectum. A Hartmann’s procedure was performed. The patient made a slow recovery and was discharged on the 12th postoperative day in good condition. Histology showed features consistent with isolated hypoganglionosis, and a full thickness rectal biopsies taken 2 months later confirmed the diagnosis.
CONCLUSIONS: Isolated hypoganglionosis in an adult is very rare, and a high index of suspicion is warranted in young patients with a history of chronic constipation to avoid delayed presentation as an emergency.

Keywords: Adult, delayed diagnosis, Hirschsprung Disease

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