| Incidental findings | Pretibial myxoedema |
| Signs | Exopthalmos, chemosis, ophthalmoplegia, lid lag, diplopia |
| Differential diagnosis | See below |
| Function | ?Visual loss / exposure keratitis, ulceration |
| Tests |
TSH, fT4
Thyroid autoantibodies |
|
Unilateral proptosis
Grave's disease Retro-orbital tumour Orbital cellulitis |
Bilateral proptosis
Grave's disease Carvernous sinus thrombosis Caroto-cavernous fistula |
| Signs |
Hyperthyroid: Tremor, thyroid acropachy, nails, sweaty palms,
tachycardia, AF, thyroid eye disease, pretibial myxoedema
Hypothyroid: Bradycardia, carpal tunnel syndrome, dry skin, coarse facial features, loss outer third eyebrow, xanthelasma, slow relaxing reflexes |
| Differential diagnosis | See below |
| Tests |
TSH, fT4
Thyroid autoantibodies |
|
Hyperthyroidism
Grave's Toxic adenoma Toxic multinodular goitre De Quervains |
Hypothyroidism
Autoimmune/Hashimotos Iatrogenic Iodine deficiency |