Health Topics A-Z
L
Leishmaniasis
Diseases and Conditions
Leishmaniasis is a parasitic disease transmitted by the bites of infected sand flies, found across dozens of countries worldwide and is classified as a neglected tropical disease.
Lung Cancer
Diseases and Conditions, Cancer
Lung cancer includes two main types: non-small cell lung cancer and small cell lung cancer. Smoking causes most lung cancers, but nonsmokers can also develop lung cancer.
Lymphoma
Diseases and Conditions, Cancer
Lymphoma is a broad term for cancer that begins in cells of the lymph system. The two main types are Hodgkin lymphoma and non-Hodgkin lymphoma (NHL). Hodgkin lymphoma can often be cured. The prognosis of NHL depends on the specific type.