Medicine The distinguishing feature of multiple endocrine neoplasia 2 B (MEN 2B) from multiple endocrine neoplasia 2 A (MEN 2A) is: A Medullary thyroid carcinoma B Pheochromocytoma C Parathyroid hyperplasia D Mucosa and gastrointestinal neuroma 💡 Explanation The distinguishing feature of multiple endocrine neoplasia 2 B (MEN 2B) from multiple endocrine neoplasia 2 A (MEN 2A) is: ✓ Correct Answer: D. Mucosa and gastrointestinal neuroma