Pathology Which of the following is not a feature of Peutz – Jegher Syndrome ? A Mucocutaneous pigmentation B Autosomal dominant C Hamartomatous polyp D Gain of function mutation of LKB1 / STK11 💡 Explanation Which of the following is not a feature of Peutz - Jegher Syndrome ? ✓ Correct Answer: D. Gain of function mutation of LKB1 / STK11