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DR Medhat MRCP

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Diseases of the nails<br />

Onycholysis<br />

- Describes the separation of the nail plate from the nail bed.<br />

• Causes<br />

Idiopathic.<br />

Trauma e.g. Excessive manicuring<br />

Infection : especially fungal.<br />

Skin disease: psoriasis, dermatitis<br />

Impaired peripheral circulation e.g. Raynaud's<br />

Systemic disease: hyper- and hypothyroidism<br />

Myxoid cysts (also known as mucous cysts)<br />

- Are benign ganglion cysts usually found on the distal, dorsal aspect of the finger.<br />

- Thereis usually osteoarthritis in the surrounding joint.<br />

- They are more common in middle-aged women.<br />

Myxoid cyst<br />

Myxoid cyst<br />

Yellow nail syndrome<br />

- Slowing of nail growth leads to the characteristic thickened and discolored nails.<br />

• Associations:<br />

Congenital lymphedema<br />

Pleural effusions<br />

Bronchiectasis<br />

Chronic sinus infections<br />

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