Landau-Kleffner
Landouzy-Dejerine Muscular Dystrophy
Langer-Giedion Syndrome
Larsen Syndrome
Latex Allergy
Laurence-Moon Syndrome
Laurence Moon Bardet Biedl Syndrome (LMBBS)
Legg-Calve-Perthes Syndrome
Leigh Disease
Lemierres Syndrome
Lennox-Gastaut Syndrome
Lenz Microphthalmia Syndrome
Leopard Syndrome
Lesch-Nyham Syndrome
Leukemia
Levator Syndrome
Lennox-Gastaut Syndrome
Leukemia, Chronic Lymphocytic
Leprosy
Les Turner Amyotrophic Lateral Sclerosis
Leukodystrophy
Li-Fraumeni Syndrome
Limb-Girdle Muscular Dystrophy
Lipodystrophy
Liver Cirrhosis
Locked-in Syndrome
Loken-Senior Syndrome
Lowe's Syndrome
Lung Cancer
Lupus
Lupus (Canadian Forum)
Lyell's Syndrome
Lyme Disease
Lymphoma
Lymphangioleiomyomatosis
Lynch Syndrome
Lysosomal Disorders