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​Symptoms and Signs – Differential Diagnosis of Swollen Eyelids 
Orbital cellulitis
Herpes zoster ophthalmicus
Herpes simplex
Dacryocytitis
Chalazion, stye, spread of infection from a local lesion e.g. a squeezed comedo
Blepharitis (may be associated with rosacea, eczema, psoriasis)
Allergy (contact with cosmetics, chemicals, animals, plants)
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​Symptoms and Signs – Differential Diagnosis of Facial nerve palsy
Unilateral
Vascular: brainstem infarction
Tumours: brainstem, cerebellopontine angle (acoustic neuroma), meningeal infiltration, parotid gland
Trauma or surgery of the face
Inflammation: sarcoidosis (meningeal inflammation), multiple sclerosis (demyelination in brainstem)
Infection (petrous bone): middle ear infection or herpes zoster
Bell's palsy (idiopathic)

Bilateral
Sarcoidosis
Myasthenia gravis
Muscular dystrophy
Motor nurone disease
Infections: Lyme disease, HIV
Guillain-Barre syndrome
Congenital facial diplegia
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​Symptoms and Signs – Differential Diagnosis of Facial pain
Neurological
Trigeminal neuralgia
Postherpetic neuralgia
Migrainous neuralgia and migraine
Glossopharyngeal neuralgia
Giant cell arteritis

Local causes
Temporomandibular joint dysfunction
Sinusitis
Referred cardiac pain
Post-traumatic
Orbital and ocular disease, optic neuritis, retro-orbital disease (e.g. posterior communicating artery aneurysm)
Nasopharyngeal tumours
Ear and parotid disease
Dental/oral disease
Atypical facial pain
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Symptoms and Signs – Differential Diagnosis of Facial swelling
Periorbital oedema
Nephrotic syndrome, hypoalbuminaemia
Infection: orbital/periorbital cellulitis, trichinosis (rare)
Hypo/hyperthyroidism
Dermatomyositis
Carotico-cavernous fistula, cavernous sinus thrombosis
Allergy to insect bites/drugs (including anaphylaxis), Cl inhibitor deficiency
Other causes of facial swelling/enlargement
Dental/sinus infection
Trauma, burns
Subcutaneous emphysema
SVC thrombosis
Cushing's syndrome, obesity
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Symptoms and Signs – Differential Diagnosis of Faecal incontinence
Pelvic floor abnormality: accidental injury, e.g. pelvic fracture, anorectal surgery, obstetric-traumatic childbirth, rectal prolapse
Overflow
Neurological: epilepsy, spinal cord compression, stroke, multiple sclerosis, trauma and tumours (brain, spinal cord, cauda equina), peripheral neuropathy (e.g. diabetes), dementia, Parkinson's disease
Fever in traveller
Diarrhoea
Congenital: meningomyelocele, anorectal anomalies
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Symptoms and Signs – Differential Diagnosis of Fatigue
Malignancy
Inflammatory/connective tissue diseases
Infection
Heart failure
Endocrine/metabolic: diabetes mellitus, hypo/hyperthyroidism, Addison's disease, uraemia
Drugs, e.g. Beta -blockers
Depression
Chronic fatigue syndrome
Anaemia
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Symptoms and Signs – Differential Diagnosis of Increased and Decreased Ferritin
Increase Ferritin
Still's disease
Sideroblastic anaemia
Repeated transfusions in thalassaemia, iron therapy
Haemochromatosis
Anaemia of chronic disease, chronic haemolysis
Acute phase response: infection, inflammation, malignancy

Decrease Ferritin
Iron deficiency
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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.