Thursday, April 3, 2014

Black/Brown staining

Black/Brown Staining

Dark Pigment deposition in the skin is seen in Ochronosis, Tatoos, Heavy metals including Mercury, Silver and Gold, Haemochromatosis and Drugs particularly the antimalarials, minocycline, amiodarone and clofazimine.

Brown staining is seen with Deamatiacious fungi, foreign bodies, formalin pigment, Melanin and hemosiderin, Monsel's solution, Ochronosis and Oxalosis.

Pigment incontinence in the upper dermis - Interface and lichenoid dermatoses (melanin in melanophages) Erythema dyschromicum perstans, Fixed drug, Post inflammatory especially lupus and lichen planus, Erythema ab igne and melasma, late incontinentia pigmenti, Poikilodermatous dermatitis

Pigmented purpuric dermatoses show hemosiderin in macrophages.

Ochronosis

Monsell's solution

Minocycline Pigmentation  View Slide

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