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Lacrimo-Auriculo-Dento-Digital Syndrome (LADD)
Lafora Body Disorder
Lambert-Eaton Syndrome
Landau-Kleffner
Landouzy-Dejerine Muscular Dystrophy
Langer-Giedion Syndrome
Langerhan's Cell Histiocytosis (LCH)
Larsen Syndrome
Laryngeal Cancer
Laryngeal Carcinoma
Laryngeal Neoplasm
Latex Allergy
Laurence-Moon Syndrome
Leber Congenital Amaurosis (LCA)
Ledderhose Disease
Legg-Calve-Perthes Disease
Leigh Disease
Leiomyosarcoma
Lemierres Syndrome
Lennox-Gastaut Syndrome
Lenz Microphthalmia Syndrome
Leopard Syndrome
Lesch-Nyham Syndrome
Letterer-Siwe Disease
Leucine Deficiency
Leukemia
Leukemia, Large Granular Lymphocyte
Lennox-Gastaut Syndrome
Leukemia, Chronic Lymphocytic
Leprosy
Les Turner Amyotrophic Lateral Sclerosis
Leukodystrophy
Leukodystrophy, Metachromatic
Leukomalacia
Leukoplakia
Li-Fraumeni Syndrome
Lichen Planus
Lichen Sclerosis
Limb-Girdle Muscular Dystrophy
Lipid Storage Myopathy
Lipodystrophy
Liposarcoma
Lissencephaly
Lissencephaly-Pro
Lobular Panniculitis
Locked-in Syndrome
Loken-Senior Syndrome
Lowe's Syndrome
Lucke Renal Adenocarcinoma
Lung Cancer
Lung Neoplasm
Lupus
Lupus Panniculitis
Lyell's Syndrome
Lyme Disease
Lymphadenopathy
Lymphangioleiomyomatosis
Lymphosarcoma
Lymphoma
Lynch Syndrome
Lysinuric Protein Intolerance