20% are MEN II
Spread:
Lympahtics
Blood spread
Not hormone responsive
Treatment:
Total thyroidectomy +
Excision of regional nodes
Prognosis:
50% 5 yr survival
Others:
1)Produces calcitonin
2)Associated with MEN IIB
-Thyroid Cancer
-Hyperarparathyroidsm
-Phaeochromocytoma
-Oral mucosal neuromata
"