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Alopecia areata can show unusual red-dotted vessels and dithranol treatment may mask typical patterns.

Sulphur in hair follicles increases from the bulb and then levels off, while other elements vary in distribution.

Hyperaesthetic leucotrichia in horses causes painful, recurring skin lesions and hair color changes, especially in Arabian and American paint horses.

Trichoscopy helps diagnose hair and scalp disorders in dark-skinned people by identifying unique patterns.

New methods and treatments for skin and hair disorders are being explored.

A man's scalp condition was misidentified as hair loss dots but was actually a common follicular disorder.

The method shows how hair lipids form specific patterns and their roles in hair structure.

A brown shadow seen in dermoscopy is a marker for lichen nitidus.

Pigmented rings with central clearing help diagnose melasma more accurately.

Spectral-analysis can help diagnose mineral imbalances in birds.

Melanocytes can regenerate around hair follicles in bullous pemphigoid, especially in patients with darker skin.

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

UV light makes skin signs of lack of carotene and vitamin A more visible.

Follicular red dots may be a normal feature seen in people with less skin pigmentation, not necessarily indicating a scalp disorder.

A 14-year-old girl's black hair showed unique color changes, suggesting early greying.

Facial dark spots can be caused by the sun, genetics, makeup, or medicine, and are diagnosed by patient history and skin tests.

Yellow dots in hair and scalp examinations are important for diagnosing different scalp conditions.

Follicular red dots can appear where alopecia areata and vitiligo overlap.

Segmental vitiligo affects hair follicle melanocytes, causing small, uniform depigmented spots.

Licensed hair gloss products improve shine and smoothness but require stricter regulation to ensure safety.

Dermoscopy is useful for tracking alopecia areata treatment, with yellow dots and new vellus hairs being good indicators of hair regrowth.

Using Excimer light with topical steroids is the most effective treatment for alopecia areata.

Trichoscopy helps tell apart hair loss due to alopecia areata from trichotillomania in eyebrows.

Shiny white structures in trichoscopy can indicate long-standing discoid lupus erythematosus alopecia.

A man with a weakened immune system was diagnosed with a rare skin condition called trichodysplasia spinulosa using skin examination techniques.

Yellow dots are common in severe alopecia areata.

Exclamation mark hairs and broken hairs best indicate active alopecia areata.

Dermoscopic features can help identify and differentiate types of pityriasis versicolor.

The document concludes that signs of male and female pattern baldness include uneven hair thickness, yellow spots, skin discoloration around hair follicles, more thin and soft hairs, and many hair follicles with just one hair.