With regard top the diagnosis of tinea capitis in cases of patchy hair loss, what diagnostics are helpful?
A potassium hydroxide (KOH) and Wood’s light exam
What is the most common cause of permanent hair loss?
andro-genetic alopecia, or male-pattern baldness
What are the most important hair growth factors?
androgens, testosterone, and its activemetabolite, dihydrotestosterone
a flat nonpalpable irregular shaped macule that's greater than one centimeter. The example of a patch is port-wine stains, or a Mongolian spot, or vitiligo
are fluid-filled lesions. Bullae are vesicles so it's under vesicle but it's greater than one centimeter, so it's a big vesicle. An example of that would be a blister.
is a raised, encapsulated, fluid-filled lesion that is usually on the dermis or a subcutaneous layer of the skin. It could be filled with liquid or semi-solid material. A good example of this is a sebaceous cyst or cystic acne