O
Obsessive-Compulsive Disorder (OCD)
• Other psychiatric disorders in which obsessive thoughts occur (e.g., body dysmorphic disorder or phobias)
• Major depression, hypochondriasis, and several anxiety disorders with predominant obsessions or compulsions; however, in these disorders, the thoughts are not anxiety provoking or extremes of normal concern
• Delusions or psychosis, which may be mistaken for obsessive thoughts; distinguished from OCD in that the individual recognizes the ideas are not real
Optic Neuritis
• Inflammatory: sarcoidosis, systemic lupus erythematosus (SLE), Behçet’s syndrome, postinfectious, postvaccination
• Ischemic: giant cell arteritis, anterior and posterior ischemic optic neuropathies, diabetic papillopathy, branch or central retinal artery or vein occlusion
Orthostatic Hypotension
COMMON
UNCOMMON
• Postural tachycardia syndrome (POTS): usually occurs in young women; an abnormally large increase in heart rate is observed in the upright position caused by increased venous pooling from autonomic dysfunction of the lower extremities, but blood pressure is not affected because of an excess of plasma norepinephrine.
Osteoporosis, Secondary Causes
• Medication induced (e.g., glucocorticoids, anticonvulsants, heparin, LHRH agonists or antagonists)
