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- La Peste
- Lab Results
- Laband Syndrome
- Labhart-Willi Syndrome
- Labor Trial After a Previous Cesarean Delivery, Deciding About
- Labor, Delivery, and Postpartum Period
- Labyrinthine Positional Nystagmus
- Labyrinthitis
- Lacerations (Cuts)
- Lacrimo-Auriculo-Dento-Digital Syndrome
- Lactation Mastitis
- Lactation-Uterus Atrophy
- lactic and pyruvate acidemia with carbohydrate sensitivity
- lactic and pyruvate acidemia with episodic ataxia and weakness
- Lactose Intolerance
- LADD
- LADD Syndrome
- Laetrile/Amygdalin: Complementary and alternative medicine - Health Professional Information [NCI PDQ]
- Laetrile/Amygdalin: Complementary and alternative medicine - Patient Information [NCI PDQ]
- Laki-Lorand Factor Deficiency
- LAM
- Lambert Type Ichthyosis
- Lambert-Eaton Myasthenic Syndrome
- Lambert-Eaton Syndrome
- lamellar ichthyosis, type 1 and type 2
- Lancefield Group B Streptococcus
- Lancereaux-Mathieu-Weil Spirochetosis
- Landau Kleffner Syndrome
- Langer Giedion Syndrome
- Langerhans Cell Histiocytosis
- Language Development
- Laparoscopic gallbladder surgery for gallstones
- Laparoscopic inguinal hernia repair
- Laparoscopic ovarian drilling (ovarian diathermy) for PCOS
- Laparoscopic surgery for endometriosis
- Laron Dwarfism
- Laron Syndrome
- Laron Type Pituitary Dwarfism I
- Larsen Syndrome
- Laryngeal cancer: Treatment - Health Professional Information [NCI PDQ]
- Laryngeal cancer: Treatment - Patient Information [NCI PDQ]
- Laryngeal Dystonia
- Laryngeal Papilloma
- Laryngitis
- Laryngotracheobronchitis
- Laser Epithelial Keratomileusis (LASEK)
- Laser in-situ keratomileusis for farsightedness (H-LASIK)
- Laser iridotomy for glaucoma
- Laser photocoagulation for age-related macular degeneration
- Laser photocoagulation for diabetic retinopathy
- Laser resurfacing
- Laser Surgery for Abnormal Cervical Cell Changes
- Laser surgery for genital warts
- Laser Surgery for Nearsightedness, Deciding About
- Laser surgery for warts
- Laser trabeculoplasty for glaucoma
- Laser treatment for varicose veins
- LASIK (laser in-situ keratomileusis) for nearsightedness
- Last Days and Hours of Life: Supportive care - Health Professional Information [NCI PDQ]
- Latah (Observed in Malaysia)
- Late Effects of Treatment for Childhood Cancer: Treatment - Health Professional Information [NCI PDQ]
- Late Effects of Treatment for Childhood Cancer: Treatment - Patient Information [NCI PDQ]
- late onset central hypoventilation syndrome with hypothalamic dysfunction
- Late-Onset Immunoglobulin Deficiency
- Late-Onset Metachromatic Leukodystrophy
- Late-onset multiple carboxylase deficiency
- Latex Allergy
- Launois-Bensaude
- Launois-Cleret Syndrome
- Laurence Moon Syndrome
- Laurence Syndrome
- Laxatives
- Lazy Eye (Amblyopia)
- LCA
- LCAD Deficiency
- LCPD
- Le Jeune Syndrome
- Le Merrer Syndrome
- Lead Poisoning
- Learning to Talk
- Leber Hereditary Optic Neuropathy
- Leber's Amaurosis
- Leber's Congenital Amaurosis
- Leber's Congenital Tapetoretinal Degeneration
- Leber's Congenital Tapetoretinal Dysplasia
- Leber's Disease
- Leber's Optic Atrophy
- Leber's Optic Neuropathy (LHON)
- Leg Cramps, Nocturnal
- Leg Injuries
- Leg Problems, Noninjury
- Legg Calve Perthes Disease
- Legionellosis
- Legionnaires' Disease
- Leigh Necrotizing Encephalopathy
- Leigh's Disease
- Leigh's Syndrome
- Leiner Disease
- Leiner-Moussous Desquamative Erythroderma
- Leiomyosarcoma of the Uterus
- Leiomyosarcoma, General
- LEMS
- Lennox Gastaut Syndrome
- Lenticular Degeneration, Progressive
- Lenz Dysmorphogenetic Syndrome
- Lenz Dysplasia
- Lenz Microphthalmia Syndrome
- Lenz Syndrome
- LEOPARD Syndrome
- Leprechaunism
- Leprosy
- Leptomeningeal Angiomatosis
- Leptomeningioma
- Leptospiral Jaundice
- Leptospirosis
- Leri Pleonosteosis
- Leri-Weil Dyschondrosteosis
- Leri-Weil Syndrome
- Leri-Weill Disease
- Leroy Disease
- Lesch Nyhan Syndrome
- Lethal Neonatal Dwarfism
- Lethal Osteochondrodysplasia
- Letterer-Siwe Disease
- Leukemia
- Leukemia, acute lymphoblastic, adult: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, acute lymphoblastic, adult: Treatment - Patient Information [NCI PDQ]
- Leukemia, acute lymphoblastic, childhood: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, acute lymphoblastic, childhood: Treatment - Patient Information [NCI PDQ]
- Leukemia, acute myeloid, adult: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, acute myeloid, adult: Treatment - Patient Information [NCI PDQ]
- Leukemia, acute myeloid, childhood: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, acute myeloid, childhood: Treatment - Patient Information [NCI PDQ]
- Leukemia, chronic lymphocytic: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, chronic lymphocytic: Treatment - Patient Information [NCI PDQ]
- Leukemia, chronic myelogenous: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, hairy cell: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, hairy cell: Treatment - Patient Information [NCI PDQ]
- Leukemia, Radiation Therapy for
- Leukocytic Anomaly Albinism
- Leukocytic Inclusions with Platelet Abnormality
- Leukocytoclastic Vasculitis
- Leukoderma
- Leukodystrophy
- Leukodystrophy with Rosenthal Fibers
- Leukodystrophy, Globoid Cell
- Leukodystrophy, Krabbe's
- Leukodystrophy, Metachromatic
- Leukoencephalitis Periaxialis Concentric
- Levels of Evidence for Adult and Pediatric Cancer Treatment Studies: Treatment - Health Professional Information [NCI PDQ]
- Levels of Evidence for Cancer Treatment Studies: Screening - Health Professional Information [NCI PDQ]
- Levels of Evidence for Human Studies of Cancer Complementary and Alternative Medicine: Complementary and alternative medicine - Health Professional Information [NCI PDQ]
- Levine-Critchley Syndrome
- Levulosuria
- Levy-Hollister Syndrome
- Levy-Yeboa Syndrome
- Leyden-Moebius Muscular Dystrophy
- LGMD
- LGS
- Lice
- Lichen Acuminatus
- Lichen Annularis
- Lichen Planus
- Lichen Planus Sclerosus Atrophicus
- Lichen Psoriasis
- Lichen Ruber Acuminatus
- Lichen Ruber Planus
- Lichen Sclerosus
- Lichen Sclerosus et Atrophicus
- Lichen Urticatus
- Life Span and Smoking Calculator
- Life-Prolonging Treatments at End of Life, Deciding About
- Light Therapy
- Light Therapy (Using), For Seasonal Affective Disorder
- Lightheadedness
- Lignac-Fanconi Syndrome
- Limb Body Wall Complex
- Limb Malformations-Dento-Digital Syndrome
- Limit Dextrinosis
- Lindau Disease
- Linear Nevus Sebacous Syndrome
- Linear Sebaceous Nevus Sequence
- Linear Sebaceous Nevus Syndrome
- Lingua Fissurata
- Lingua Nigra
- Lingua Plicata
- Lingua Scrotalis
- Lingua Villosa Nigra
- Linguofacial Dyskinesia
- Lip Pseudocleft-hemangiomatous Branchial Cyst Syndrome
- lipase D deficiency
- LIPD deficiency
- lipid histiocytosis
- Lipid histiocytosis (kerasin type)
- Lipid Panel
- Lipid-Storage Myopathy Associated with SCAD Deficiency
- lipidosis, sphingomyelin
- Lipodystrophy
- Lipodystrophy, partial, with Rieger anomaly and short stature
- Lipoid Granulomatosis
- Lipoma
- Lipomatosis Dolorosa Morbus Dercum’s
- Lipomatosis of Pancreas, Congenital
- Lipomucopolysaccharidosis Type I
- lipoprotein lipase deficiency
- lipoprotein lipase, included; LPL, included
- Liposuction
- Lissencephaly
- lissencephaly, type I
- Listeria Infection
- Listeriosis
- Listeriosis
- Lithotripsy (ESWL) for Kidney Stones, Deciding About
- Livedo Reticularis and Cerebrovascular Accidents
- Liver cancer, adult primary: Treatment - Health Professional Information [NCI PDQ]
- Liver cancer, adult primary: Treatment - Patient Information [NCI PDQ]
- Liver cancer, childhood: Treatment - Health Professional Information [NCI PDQ]
- Liver cancer, childhood: Treatment - Patient Information [NCI PDQ]
- Liver fluke disease
- Liver Function Panel
- Liver Phosphorylase Deficiency
- Liver resection
- Living Will
- Living With a Spinal Cord Injury
- Lizard and Snake Bites
- LKS
- LM Syndrome
- LMs
- LO-CHS HD
- lobar atrophy of the brain
- Lobar Emphysema, Infantile
- Lobar Holoprosencephaly
- Lobar Tension Emphysema in Infancy
- Lobo Disease
- Lobstein Disease (Type I)
- Lobster Claw Deformity
- Lobular Carcinoma of the Minor Salivary Glands
- Localized Infantile Mastocytosis
- Localized Prostate Cancer, Should I Have radiation Therapy or a Prostatectomy?
- Locked In Syndrome
- Lockjaw
- Loeffler Endomyocardial Fibrosis with Eosinophilia
- Loeffler Fibroplastic Parietal Endocarditis
- Loeffler's Disease
- Loken Senior Syndrome
- Loken-Senior Syndrome
- Long Chain Acyl-CoA Dehydrogenase Deficiency
- Long QT Syndrome Type 1
- Long QT Syndrome without Deafness
- Loop electrosurgical excision procedure (LEEP) for abnormal cervical cell changes
- Loop electrosurgical excision procedure (LEEP) for genital warts
- Loss, Grief, and Bereavement: Supportive care - Health Professional Information [NCI PDQ]
- Loss, Grief, and Bereavement: Supportive care - Patient Information [NCI PDQ]
- Lota
- Louis-Bar Syndrome
- Low Back Pain
- Low Back Pain, Deciding About MRI
- Low Back Pain, Deciding About Spinal Manipulation
- Low Back Pain, IDET (Intradiscal Electrothermic Therapy) for
- Low back pain: Exercises to reduce pain
- Low back pain: Should I have an MRI?
- Low back pain: Should I have spinal manipulation?
- Low Blood Sugar (Hypoglycemia) in People Without Diabetes
- Low Blood Sugar from Diabetes
- Low blood sugar from taking insulin, Dealing with
- Low blood sugar from taking oral diabetes medicine, Dealing with
- Low blood sugar in children with diabetes, Dealing with
- Low blood sugar in children with diabetes, Preventing
- Low Blood Sugar with Gestational Diabetes, Dealing With
- Low Density B-lipoprotein Deficiency
- Low Imperforate Anus
- Low Potassium Syndrome
- Low-Carb Diets for Weight Loss
- Low-Density Beta Lipoprotein Deficiency
- Low-Dose Aspirin Therapy
- Low-Grade Papillary Carcinoma of the Palate
- Low-salt diet for cirrhosis, Eating a
- Low-Salt Diet for Heart Failure
- Low-salt diets: Eating out
- Low-Sodium Diet for Heart Failure
- Lowe Syndrome
- Lower Leg Injuries
- Lower Leg Problems, Noninjury
- LPL deficiency
- LQTS1
- LTD1
- Lubs Syndrome
- Lues, Congenital
- Lumbar Pain
- Lumbar Spinal Stenosis
- Lumpectomy for Breast Cancer
- Lumpectomy or a Mastectomy to Treat Early-Stage Breast Cancer, Deciding About
- Lumps Under the Skin
- Lunatomalacia
- Lung Cancer
- Lung cancer, non-small cell: Treatment - Health Professional Information [NCI PDQ]
- Lung cancer, non-small cell: Treatment - Patient Information [NCI PDQ]
- Lung cancer, small cell: Treatment - Health Professional Information [NCI PDQ]
- Lung cancer, small cell: Treatment - Patient Information [NCI PDQ]
- Lung cancer: Prevention - Health Professional Information [NCI PDQ]
- Lung cancer: Prevention - Patient Information [NCI PDQ]
- Lung cancer: Screening - Health Professional Information [NCI PDQ]
- Lung cancer: Screening - Patient Information [NCI PDQ]
- Lung Nocardiosis
- Lung surgery (thoracotomy) for lung cancer
- Lung transplant for cystic fibrosis
- Lupus (Systemic Lupus Erythematosus)
- Lupus Anticoagulant Syndrome
- Luschka-Magendie Foramina Atresia
- Lutz-Splendore-Almeida Disease
- Lyell Syndrome
- Lyelles Syndrome
- Lyme Disease
- Lymph Node Cancer (Non-Hodgkin's Lymphoma)
- Lymph node removal (lymphadenectomy) for melanoma
- Lymphadenectomy for endometrial cancer
- Lymphadenitis, Regional Nonbacterial
- Lymphadenoid goiter
- Lymphadenopathy (Swollen Lymph Nodes)
- Lymphadenopathy, Angioimmunoblastic with Dysproteinemia
- Lymphangiectasia, Primary Intestinal
- Lymphangiectasis, Primary Intestinal
- Lymphangiectatic Protein-Losing Enteropathy
- Lymphangioleimyomatosis
- Lymphangioleiomatosis
- Lymphangioleiomyomatosis
- Lymphangiomas
- Lymphatic Malformations
- Lymphedema
- Lymphedema with Distichiasis
- Lymphedema with Yellow Nails
- Lymphedema, Hereditary
- Lymphedema, Neonatal due to Exudative Enteropathy
- Lymphedema-Distichiasis Syndrome
- Lymphedema: Managing lymphedema
- Lymphedema: Supportive care - Health Professional Information [NCI PDQ]
- Lymphedema: Supportive care - Patient Information [NCI PDQ]
- Lymphocytic Infiltrate of Jessner
- Lymphoma, non-Hodgkin's, adult: Treatment - Health Professional Information [NCI PDQ]
- Lymphoma, non-Hodgkin's, adult: Treatment - Patient Information [NCI PDQ]
- Lymphoma, non-Hodgkin's, childhood: Treatment - Health Professional Information [NCI PDQ]
- Lymphoma, non-Hodgkin's, childhood: Treatment - Patient Information [NCI PDQ]
- Lymphoma, Radiation Therapy for
- Lymphoreticulosis, Benign Inoculation
- Lynch Syndromes
- Lysosomal Acid Lipase Deficiency, Wolman Type
- Lysosomal Alpha-D-Mannosidase Deficiency
- Lysosomal Alpha-N-Acetylgalactosaminidase Deficiency, Schindler Type
- Lysosomal Glucosidase Deficiency
- Lysosomal Glycogen Storage Disease Without Acid Maltase Deficiency
- Lysosomal Storage Disorders





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