Disease Reference Index - N

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• Nabothian cyst
• Nails - fungal infection
• NALD
• Narcissistic personality disorder
• Narcolepsy
• Nasal allergies
• Nasal polyps
• Nasal tumor
• Natural short sleeper
• Nausea - persistent - in pregnancy
• NBP
• Nearsightedness
• NEC
• Neck arthritis 
• Necrosis - acute tubular
• Necrosis - renal papillae
• Necrosis - renal tubular
• Necrotizing colitis
• Necrotizing enterocolitis
• Necrotizing fasciitis
• Necrotizing glomerulonephritis
• Necrotizing granuloma
• Necrotizing pneumonia
• Necrotizing soft tissue infection
• Necrotizing vasculitis
• Neonatal adrenoleukodystrophy
• Neonatal conjunctivitis
• Neonatal polycythemia
• Neonatal respiratory distress syndrome
• Neonatal rickets
• Neoplasm
• Nephritis - interstitial
• Nephritis - lupus
• Nephritis syndrome - acute
• Nephroblastoma
• Nephrocalcinosis
• Nephrogenic diabetes insipidus
• Nephrogenic diabetes insipidus - congenital
• Nephrolithiasis
• Nephropathy - analgesic
• Nephropathy - IgA
• Nephropathy - reflux
• Nephrosclerosis - arteriolar
• Nephrosis
• Nephrotic syndrome
• Nephrotic syndrome - congenital
• Nerve damage - diabetic
• Nerve pain
• Nervous indigestion
• Neuralgia
• Neurally mediated hypotension
• Neuritis - peripheral
• Neuroblastoma
• Neuroendocrine tumors
• Neurofibromatosis 2
• Neurofibromatosis-1
• Neurogenic bladder
• Neuroglioma - adults
• Neuroglioma - children
• Neurologic orthostatic hypotension
• Neuronal ceroid lipofuscinoses (NCLS)
• Neuropathy - alcoholic
• Neuropathy - autonomic
• Neuropathy - axillary nerve
• Neuropathy - brachial plexus
• Neuropathy - common peroneal nerve
• Neuropathy - distal median nerve
• Neuropathy - facial
• Neuropathy - femoral nerve
• Neuropathy - isolated
• Neuropathy - peripheral
• Neuropathy - peroneal (hereditary)
• Neuropathy - radial nerve
• Neuropathy - sciatic nerve
• Neuropathy - tibial nerve
• Neuropathy - ulnar nerve
• Neuropathy secondary to drugs
• Neurosarcoidosis
• Neurosyphilis
• Neurotic depression (dysthymia)
• Neutropenia
• Neutropenia - infants
• Nevi
• Nevoid basal cell carcinoma syndrome
• Nevus araneus
• Nevus flammeus
• Nevus sebaceous
• Nevus simplex
• Nevus varicosus osteohypertrophicus syndrome
• Nevus verucosus hypertrophicans
• New-onset angina
• Newborn conjunctivitis
• Newborn jaundice
• NF1
• NF2
• Nicotine withdrawal
• Niemann-Pick disease
• Night terror
• Nightmares - repeated
• Nil disease
• Nipple problems
• Nits
• NKHHC
• NMH
• No periods
• Nocardia infection
• Nocardiosis
• Nocardiosis - pulmonary
• Nocturnal myoclonus
• Noma
• Non-A or non-B hepatitis
• Non-cardiogenic pulmonary edema
• Non-gonococcal (septic) bacterial arthritis
• Non-Hodgkin's lymphoma
• Non-small cell lung cancer
• Nonimmune thrombocytopenia - drug-induced
• Noninsulin-dependent diabetes
• Nonketotic hyperglycemic hyperosmolar coma
• Nonlipid reticuloendotheliosis
• Nonorganic failure to thrive
• Nonpolio enterovirus infection
• Nonseminomatous germ cell tumor - teratoma
• Nonspecific back pain
• Nontropical sprue
• Nontuberculous atypical mycobacterial disease
• Noonan syndrome
• Normal pressure hydrocephalus (NPH)
• North American blastomycosis
• Norwalk virus
• Nose - bulbous
• Nosocomial pneumonia
• NSCLC
• Nummular dermatitis
• Nummular eczema
• Nursemaid’s elbow
• Nutrition - inadequate