Gut and abdominal viscera

Source region and uptake · Follows the artery

Gut lymph follows the artery of supply back to nodes at the roots of the three midline visceral arteries, and after a meal it carries absorbed long-chain fat as chyle.

Detail

Foregut
Coeliac nodes
Midgut
Superior mesenteric nodes
Hindgut
Inferior mesenteric nodes
Fat absorption
Long-chain fat as chylomicrons into lacteals; medium-chain fat to the portal vein
Liver
Largest single source of lymph; drains to coeliac and posterior mediastinal nodes

When it goes wrong

Gastric adenocarcinoma tracking along the coeliac chain and thoracic duct

Hard left supraclavicular node (Troisier's sign)

Portal hypertension raising hepatic sinusoidal pressure

Hepatic lymph production outstrips the thoracic duct, producing ascites

Practise this structure

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