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Colonic adenocarcinoma and bilateral malignant ovarian sex cord tumor with annular tubules in Peutz-Jeghers syndrome.

Peutz-Jeghers syndrome is characterized by multiple polyps throughout the gastrointestinal tract in association with mucocutaneous pigmentation. Although Peutz-Jeghers syndrome polyps are hamartomas, frequent association of this syndrome with both gastrointestinal and non-gastrointestinal tumours had led to reassessment of the cancer risk in this hereditary disorder. The most common gynaecological tumors in this syndrome are adenoma malignum of the uterine cervix and ovarian sex cord tumor, particularly sex cord tumor with annular tubules. The question of malignant change in a polyp or of the association of gastro intestinal carcinomas still discuss. The authors report a case of Peutz-Jeghers syndrome in a young patient who developed a colonic adenocarcinoma in a hamartomatous polyp together with an incidentally discovered bilateral malignant sex cord tumours. We discuss its association with certain benign and malignant tumors and the risk of rare complications of these hamartomatous polyps. Although malignant tumors are increasingly reported in association with the Peutz-Jeghers syndrome, to our knowledge, there have been no previous reports of such an association in the literature.