Mucosal melanosis and hamaomatous polyps are seen in?

Peutz-jeghers syndrome: Autosomal dominant disorder Mutation- STK 11 / LKB1 gene Multiple gastrointestinal hamaomatous polyps + Mucocutaneous hyperpigmentation Increased risk for colon, pancreas, breast, lung, ovaries, uterus, testes neoplasms Gross- Polyps are large & pedunculated with lobulated contour.