Articles In This Section
A to Z: Li-Fraumeni Syndrome
This genetic condition makes a person more likely to get cancer during his or her lifetime. Learn more here.
A to Z: Lipoma
A lipoma is a non-cancerous mass of fat cells that grows under the skin.
A to Z: Lyme Disease
Lyme disease is a bacterial infection spread through the bite of deer ticks.
A to Z: Lymphadenitis
Learn about bacterial infections and problems of the lymphatic system.
A to Z: Lymphangioma Circumscriptum
Learn about congenital defects and conditions that affect the lymphatic system.
A to Z: Lactose Intolerance
Lactose intolerance happens because the body has trouble digesting a kind of sugar that's in milk products.
A to Z: Lateral Malleolar Fracture
See: Fracture, Lateral Malleolus.
A to Z: Legg-Calvé-Perthes Disease
Learn about this rare hip disorder, which is most common in boys.
A to Z: Lumbago
Learn about causes of back pain and conditions that affect the back and spine.