[Peutz-Jegher's syndrome].

Peutz-Jeghers syndrome is a rare hereditary disease, although in about 20 % of patients there is no known family history. Its clinical hallmarks are facial mucocutaneous pigmentation and diffuse gastrointestinal polyposis of hamartomatous origin. The major difficulty in the management of this disease lies in the complications of surgery for small bowel polyposis and the high incidence of tumors presented by these patients as adults. We present the case of a 10-year-old girl with treatment-resistant anemia and no other clinical symptoms. Further investigation revealed pigmentation in the oral mucosa and polyposis in the stomach and small intestine. Hamartomatous lesions were confirmed by histological study of intestinal biopsy. No familial antecedents of pigmentation or intestinal polyps were found. During evolution the patient required subtotal resection of the small intestine due to invagination.