| Type 2A |
| MEN2A classical (medullary thyroid cancer, pheochromocytoma, primary hyperparathyroidism) |
| MEN2A with cutaneous lichen amyloidosis |
| MEN2A with Hirschsprung disease |
| Familial medullary cancer without pheochromocytoma or parathyroid hyperplasia |
| Type 2B |
| Medullary thyroid cancer |
| Pheochromocytoma |
| Other |
| Mucosal neuromas |
| Intestinal ganglioneuromas |
| Marfanoid habitus |
