Scutulum
Encyclopedia
A scutulum is a yellow, perifollicular, saucerlike or cup-shaped crust with a cheesy odor, composed of dense mats of mycelia and epithelial debris. Scutula often occur on the scalp and are characteristic of favus
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Favus
Favus is a disease usually affecting the scalp, but occurring occasionally on any part of the skin, and even at times on mucous membranes.-Presentation:...
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Morphology
- Consists of a crust like lesion yellow in colour (sulpher cap)
- Has a concave-convex surface with its convexity to the scalpScalpThe scalp is the anatomical area bordered by the face anteriorly and the neck to the sides and posteriorly.-Layers:It is usually described as having five layers, which can conveniently be remembered as a mnemonic:...
making for itself an erosionErosionErosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...
or depression of epidermis, so it's firmly adherent to scalp - Upon detachment it gives a serosangiunous discharge (serous + blood discharge)
- size : from few mms to few cms