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0-9

Disease

O'nyong-nyong fever

Obese - children

Obesity - central sleep apnea

Obesity hypoventilation syndrome (OHS)

Obesity in children

Obsessive-compulsive disorder

Obsessive-compulsive neurosis

Obsessive-compulsive personality disorder

Obstetrical brachial plexus palsy

Obstruction of the ureteropelvic junction

Obstructive sleep apnea - adults

Obstructive uropathy

Obstructive uropathy - hydronephrosis

Occlusion - renal vein

Occupational asthma

Occupational bronchitis

Occupational hearing loss

Ocular albinism

Ocular diabetic neuropathy

Ocular larva migrans

Ocular melanoma

Oculocutaneous albinism

Oculoglandular syndrome

Oculomotor palsy

Oculosympathetic paresis

Odontogenic abscess

Ogilvie syndrome

Ogilvie's syndrome

Ohio River Valley fever

Old world leishmaniasis

Olecranon bursitis

Oligodendroglioma - adults

Oligodendroglioma - children

Oligohydramnios

Olivopontocerebellar atrophy

Olivopontocerebellar atrophy - supranuclear ophthalmoplegia

Olivopontocerebellar degeneration

Onychocryptosis

Open-angle glaucoma

Ophthalmia neonatorum

Ophthalmopathy - Graves

Opiate and opioid withdrawal

Opioid abuse - intoxication

Opioid intoxication

Opioid use - intoxication

Opioid withdrawal

Opoid withdrawal

Oppositional defiant disorder

Optic glioma - children

Optic nerve - optic neuritis

Optic nerve atrophy

Optic nerve glioma

Optic neuropathy

Oral herpes simplex

Oral HPV infection

Oral human papillomavirus infection

Oral hypoglycemic - type 2 diabetes

Oral mucous cyst

Oral thrush - newborn

Orbital cellulitis

Orbital pseudotumor

Organic brain syndrome

Organic mental disorder (OMS)

Ormond's disease

Orofacial dyskinesia

Oropharyngeal cancer - HPV

Oropharyngeal HPV infection

Orthostatic hypotension

Oseltamivir (Tamiflu) - flu

Osgood-Schlatter disease

Osler's disease

Osler-Weber-Rendu disease

Osler-Weber-Rendu syndrome

Osmotic demyelination syndrome

Osmotic diuresis

Osteitis deformans

Osteitis fibrosa

Osteitis fibrosa cystica

Osteochondrosis

Osteodental dysplasia

Osteogenesis imperfecta

Osteogenic sarcoma

Osteomalacia in children

Osteomyelitis in children

Osteomyelitis of the skull

Osteopenia - hyperparathyroidism

Osteopenia - parathyroid adenoma

Osteopenia - parathyroid hyperplasia

Osteopenia - premature infants

Osteopenia of prematurity

Osteoporosis - compression fracture

Osteoporosis - hyperparathyroidism

Osteoporosis - parathyroid adenoma

Osteoporosis - parathyroid hyperplasia

Ostium primum atrial septal defects

Otitis externa - acute

Otitis externa - chronic

Otitis externa - malignant

Otitis media - acute

Otitis media - chronic

Otitis media with effusion

Ovalocytosis - hereditary

Ovarian cancer - Sertoli-Leydig cell tumor

Ovarian failure

Ovarian hyperstimulation syndrome

Ovarian hypofunction

Ovarian insufficiency

Ovarian overproduction of androgens

Overactive bladder

Overactive parathyroid

Overactive parathyroid - parathyroid hyperplasia

Overactive parathyroid gland - parathyroid adenoma

Overactive thyroid

Overactive thyroid - toxic nodular goiter

Overgrowth - intestinal bacteria

Overpressure therapy - Ménière disease

Overproduction of growth hormone

Overwhelming post-splenectomy infection

Owren's disease

Oxycodone - opiate withdrawal

Oxycontin - opiate withdrawal

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