lymphatics of colon – Surgery MCQs

Q ) Which of the following group of lymph nodes do lymphatics of the colon first drain to?

a) Paracolic

b) Epicolic

c) Nodes along SMA/IMA

d) Para aortic

Ans ) b

Lymphatics first drain to epicolic group along the bowel wall

Then paracolic group along the marginal artery

Intermediate group along the named vessels SMA/IMA

Finally to par aortic

Colon and upper 2/5 of rectum --- Para aortic

Lower 1/5 of rectum and anal canal - Superficial inguinal lymph nodes

Ref Sabiston-1317