Boys with trisomy 21 may be at risk for the Hinman-Allen syndrome. Surgical intervention and clean intermittent catheterization for renal preservation and continence can be performed in this population despite intellectual impairment. Further evaluation is necessary to determine whether this relationship is more common than appreciated and whether this syndrome occurs in females with trisomy 21.

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We report here on a case of recurrent bleeding secondary to duodenal ulcer, de− spite previous endoscopic treatment with epinephrine and argon, which was con− trolled with endoscopic injection of col− lagen/povidone. This is a biological agent derived from gamma−irradiation of a mix− ture of type I pepsinated porcine collagen and povidone that has been reported to improve recovery during the healing pro− cess [1, 2].

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