Skyscape Web Viewer : MobileDDx™ - Differential Diagnosis Tool : Symptoms Index

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Obesity
Obsessions
Obstruction of Large Intestine
Obstructive Disease on PFTs
Obstructive Sleep Apnea
Occasional occurrence without bubo
Occult GI Bleeding
Occurs with sleep
Ocular paralysis
Odynophagia Odynophagia Peritonsillar Abscess Laryngitis Pericarditis
Olfactory Dysfunction
Oligomenorrhea & Amenorrhea
Oliguria Disseminated Intravascular Coagulation Nephrotic Syndrome Thrombotic Thrombocytopenic Purpura Cholera Hypernatremia Portal Hypertension
Onset 4-14 days post injury
Onset usually in 3rd decade
Onycholysis Photodermatitis Onycholysis
Open comedones
Ophthalmic abnormalities
Opisthotonos
Optic Neuritis
Oral Leukoplakia
Oral Ulcers
Orchitis Brucellosis Mumps Lyme Disease
Orthopnea Congestive Heart Failure Mitral Stenosis Superior Vena Cava Syndrome Mitral Regurgitation Orthopnea or Nocturnal Dyspnea
Orthostatic hypotension Nephrotic Syndrome Hyponatremia Pheochromocytoma
Obscures angle of mandible
Obsessive-Compulsive Disorder
Obstruction of Small Intestine
Obstructive Hepatobiliary Disease
Obstructive Uropathy