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Symptoms and Signs -Differential Diagnosis of Finger pain
Trauma: fracture, subungal haematocoma
Referred: cervical spondylosis
Other: scleroderma, tumours (bone tumour, glomus tumour)
lschaemia: vasospasm (Raynaud's phenomenon), vasculitis, peripheral vascular
Infection: paronychia, tendon sheath infection, pulp space infection
disease, emboli
Carpal tunnel syndrome
Arthritis: e.g. rheumatoid arthritis, gout
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Symptoms and Signs – Differential Diagnosis of Folate deficiency
Drugs: phenytoin, trimethoprim, sulfasalazine
Increased Demand: pregnancy/lactation, malignancy, chronic inflammation, chronic haemolytic anaemia, haemodialysis
Reduced Intake: alcoholics, elderly, anorexia
Reduced Absorption: jejunal disease, e.g. coeliac disease, tropical sprue, Whipple's disease, small intestinal resection
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Symptoms and Signs – Differential Diagnosis of Foot drop
Common peroneal nerve lesion: mononeuritis multiplex, e.g. diabetes mellitus
Injury to the dorsiflexors, compartment syndrome
LS root lesion (radiculopathy), e.g. inter-vertebral disc prolapse
Muscular
Neurological
Rarer: motor neuron disease, multiple sclerosis, stroke
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Symptoms and Signs – Differential Diagnosis of Epistaxis
Anticoagulants, bleeding disorders
Hereditary haemorrhagic telangiectasia
Nasal tumours
Trauma/irritation: nose picking, forceful blowing, foreign body, chronic intranasal drugs use (e.g. cocaine)
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​Symptoms and Signs –Differential Diagnosis of Erythema multiforme
Malignancy (lymphoma, leukaemia, myeloma), radiation
Inflammatory/connective tissue diseases: rheumatoid arthritis, SLA, sarcoidosis, PAN, Wegener's granulomatosis
Infection: viral (HSV, EBV, orf), bacterial (Mycoplasma pneumoniae, chlamydiae), fungal (histoplasmosis, coccidiomycosis)
Idiopathic
Drugs: sulphonamides, penicillins, anticonvulsants
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Symptoms and Signs – Differential Diagnosis of Erythema nodosum
Pregnancy
Malignancy: lymphoma, leukaemia
Inflammation: inflammatory bowel disease, sarcoidosis, Bechet's disease
Infection: Bacterial (Streptococcus, Chlamydia, TB, Yersinia, Rickettsia, leprosy, leptospirosis), Viral (EBV), Fungal (histoplasmosis, coccidiomycosis, blastomycosis), Protozoa! (toxoplasmosis)
Drugs: sulphonamides, penicillin, oral contraception, salicylates, dapsone
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Kembara Xtra 

Facts about medicine and its subtopic such as anatomy, physiology, biochemistry, pharmacology, medicine, pediatrics, psychiatry, obstetrics and gynecology and surgery.