Archives: Conditions A-Z
Langerhans cell histiocytosis
Clonal proliferation of Langerhans-type cells with single- or multi-system disease.
Lennox-Gastaut syndrome
A severe childhood epilepsy syndrome; several antiseizure medicines reduce drop attacks and other seizures.
Leprosy
Chronic mycobacterial infection of skin and peripheral nerves causing disfigurement and disability if untreated.
Lymphangioleiomyomatosis
Cystic lung disease in women from abnormal smooth-muscle proliferation, associated with TSC.
Long QT syndrome
Inherited repolarization disorder with risk of torsades de pointes and sudden death.
Loeys-Dietz syndrome
An aggressive heritable connective-tissue and vascular disorder; blood-pressure-lowering therapy and close vascular surveillance with timely surgery are central.
Limb-girdle muscular dystrophy
Heterogeneous dystrophies affecting shoulder and pelvic girdle muscles; many genetic subtypes.
Lymphatic filariasis
Mosquito-borne nematode infection causing lymphedema and elephantiasis.