DDx
Diabetes mellitus Idiopathic peripheral polyneuropathy Compression of the spinal cord or peripheral nerves. Disk disease Carpal tunnel syndrome Meralgia paresthetica Herpes Zoster Alcoholism Stroke Guillain-Barré syndrome Hypothyroidism; Hyperthyroidism Deficiencies...
DDx
Causes of palpitations can be divided into four main categories: 1) Psychiatric, 2) cardiac, 3) Medication, and 4) Systemic medical causes. Psychiatric/Psychosomatic causes Anxiety disorder; Stress Panic attacks/Panic disorder Depression Somatization disorder Cardiac...
DDx
My article on pruritus Ani has a section titled what causes pruritus ani. That section is a thorough differential diagnosis.
DDx
Refractory error (improves with pinhole): Presbyopia (> 40-year-old), Myopia, Hyperopia, Astigmatism Cataract (lens opacification) – Can be age-related (most common), congenital, metabolic, or traumatic. Macular degeneration (atrophic or “dry” MD;...
DDx
Temporary vascular occlusion; choroidal or retinal vascular spasm Severe occlusive carotid disease Temporary neuronal depression related to seizure or migraine Emboli from the carotid Cardiac emboli Aortic dissection Increased intracranial pressure Takayasu’s...
DDx
Corneal ulcer Keratitis (corneal inflammation e.g. from HSV). Acute angle-closure glaucoma. Uveitis Endophthalmitis Optic neuritis Trauma Giant Cell Arteritis Factitious Somatization Syndrome Conjunctivitis (blurry) Thining through the Differential Diagnosis...
