Mucosa-associated lymphoid tissue

Looks like

Scattered patches of immune tissue in the linings of the gut, airways, urinary tract and eyes.

What it does

Guards the body's entrances, making IgA antibodies against germs entering there.

Keeping it well

Chronic infection with H. pylori can turn stomach MALT into a lymphoma, often cured by treating the infection.

Related conditions

• Kaposi sarcoma
• Lymphatic filariasis (elephantiasis)
• Lymphoedema