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A 3-year-old boy lost all his hair due to a rare reaction to phenobarbital, but it grew back after steroid treatment.

Punctate follicular porokeratosis is a skin condition with specific features seen in hair follicles.

Hair loss in lupus is different from hair loss in alopecia areata and may indicate lupus activity.

Early diagnosis and treatment are crucial for preventing permanent hair loss in various scalp conditions, and while new treatments are promising, more research is needed to evaluate their effectiveness.

Using CD123 to detect certain immune cells helps diagnose a type of hair loss condition.

Seborrhoeic dermatitis may cause a condition called "seborrhoeic folliculitis," leading to chronic scalp inflammation and scarring hair loss.

Some patients with a type of skin lymphoma can experience a rare, non-scarring hair loss that looks like another hair loss condition but has distinct features.

The document discusses various diseases of the outer ear, categorized by symptoms like redness, crusts, bumps, pus-filled lesions, lumps, ulcers, and hair loss.

The conclusion is that FFA and LPP have similar scalp biopsy features, making them hard to distinguish histologically, and FFA may be a specific kind of scarring hair loss.

Sunlight worsens hair loss; protect scalp.

Recognizing the different stages of alopecia areata is crucial for accurate diagnosis and treatment.

Horizontal sections of scalp biopsies are good for diagnosing Central Centrifugal Cicatricial Alopecia and help customize treatment.

Trichoscopy is a useful tool for diagnosing and managing hair and scalp conditions, often better than traditional methods.

Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.

AGA patients have fewer hairs and smaller follicles; T:V ratio above 4:1 may indicate AGA.

Alternative treatments show promise for hair growth beyond traditional methods.

FAPD and possibly CCCA may be AGA subtypes, and treatments combining antiandrogens, hair growth agents, hair transplants, and anti-inflammatories could be effective.

Some chemicals and drugs can cause hair loss, which usually grows back after stopping the treatment.

Rosacea is a skin condition with unclear causes, classified into four subtypes.

Tufted folliculitis is common in patients with folliculitis decalvans.

N-acetylcysteine may prevent hair loss caused by chemotherapy.

PPAR-γ helps control skin oil glands and inflammation, and its disruption can cause hair loss diseases.

Trichoscopy is a useful tool for diagnosing hair and scalp issues, but doctors must be careful to avoid mistakes.

The document concludes that stopping shaving or removing affected hair can alleviate Pseudofolliculitis barbae (PFB).

Immune checkpoint inhibitors used in cancer therapy can cause hair loss, and understanding this can help manage the side effect.

Finasteride helps hair regrowth in frontal fibrosing alopecia.

Alopecia areata causes hair loss due to an immune attack on hair follicles, influenced by genetics and environment.

Hair loss in a drug reaction case involved both a common shedding phase and an immune attack on hair follicle stem cells.

VEGF helps hair grow and determines follicle size by increasing blood vessel growth.

Dermatoscopy is useful for identifying different hair and scalp conditions and can reduce the need for biopsies.