Pale nodules of pretibial myxoedema in skin of colour (PTM-patient5)
Keywords: Bilateral lower leg, Female, Infiltrative dermopathy, Leg, Localised myxoedema, Nodular pretibial myxoedema type, Pale firm nodules, Pretibial, Skin of colour, Thyroid dermopathy
Pretibial myxoedema is a form of diffuse mucinosis in which there is an accumulation of excess glycosaminoglycans in the dermis and subcutis of the skin. Glycosaminoglycans, also called mucopolysaccharides, are complex carbohydrates that are important for tissue hydration and lubrication. The main glycosaminoglycan in pretibial myxoedema is hyaluronic acid, which is made by cells called fibroblasts.
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