Turner syndrome with ulcerative colitis.

Turner syndrome is a chromosomal disease frequently associated with autoimmune disorders including diabetes mellitus, thyroid disease and inflammatory bowel disease (IBD). Although the etiology of IBD has not been fully elucidated, genetic analysis has recently revealed several susceptibility genes. Recently, cases with Turner syndrome associated with IBD have been reported. We report here a 13-yr-old girl with Turner syndrome associated with ulcerative colitis. The patient was undergoing growth hormone treatment and presented with abdominal discomfort and bloody diarrhea. Her karyotype pattern was 46,X,i(Xq). Barium enema revealed punctate collections of barium suggesting microulcerations in the descending and sigmoid colon with loss of haustra. Flexible sigmoidoscopy showed that the mucosa was erythematous and friable upon touch and that the wall had frank hemorrhage and inflammatory polyp formation from the anal verge through the splenic flexure. Histologically, mucosal and submucosal inflammation was prominent, suggesting cryptitis and crypt abscess formation. Based on these findings, she was diagnosed as having ulcerative colitis, and 5-aminosalicylic acid, prednisolone and dietary therapy were initiated. Our observations in this patient suggest that X chromosome abnormality may influence the development of IBD and that screening for gastrointestinal disease in patients with Turner syndrome may help lengthen life expectancy in these patients.