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Understanding hair follicle anatomy helps diagnose hair disorders.

Horizontally sectioned scalp biopsies are more reliable for diagnosing hair loss in women when three samples are taken instead of one.

The conclusion is that certain scalp tissue changes are characteristic of lichen planopilaris, with mucinous perifollicular fibroplasia being a new feature for diagnosis.

Shrinking skin cancer increases the chance of cancer in nearby lymph nodes.

Finding eosinophils near hair bulbs helps diagnose alopecia areata.

Chemotherapy can cause permanent, non-reversible hair loss similar to pattern baldness.

Using both vertical and transverse sections gives a better diagnosis of alopecia than using one method alone.

Scarring alopecia affects different hair follicle stem cells than nonscarring alopecia, and the infundibular region could be a new treatment target.

Other common signs, not just the well-known immune cells around hair bulbs, are important for diagnosing hair loss from alopecia areata.

Finasteride increases hair density in female androgenetic alopecia, but individual results may vary.

Some patients with mycosis fungoides or Sézary syndrome experience hair loss, which may be similar to alopecia areata or linked to skin lesions, possibly due to abnormal T cells, and bexarotene can help treat it.

EVG staining is a valuable, simple, and cost-effective method for diagnosing various skin conditions in dermatopathology.

Scalp melanomas are more dangerous and often missed, needing earlier detection.

Loss of sebaceous glands and inflammation may contribute to the development of scarring alopecia.

Female pattern hair loss involves hormonal factors, genetics, and may be linked to low ferritin levels.

The research found specific signs to diagnose alopecia areata incognito and noted patients generally regrow hair after steroid treatment.

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

Where melanoma is on the body affects survival chances; melanomas on the back of the head are worse, while those on thighs and arms are less severe, and more sun exposure might improve survival.

Traction may not be the only cause of cicatricial marginal alopecia.

New melanoma treatments can cause skin side effects, including skin cancer and rashes, but combining treatments may reduce these risks.

Vertical sections are better than horizontal sections for diagnosing alopecia.

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

CD3+ T-cell presence is a reliable marker to tell apart alopecia areata from pattern hair loss.

The article concludes that correctly diagnosing systemic causes of hair loss requires a detailed clinical evaluation and a systematic diagnostic approach.

The study suggests computer-assisted analysis of scalp biopsies could improve hair loss diagnosis but needs more validation.

Some people's hair loss is caused by multiple factors, with the most common being a mix of AGA and CCCA.

The document concludes that choosing the right biopsy site is crucial for accurate alopecia diagnosis, and combining methods can improve results.

Special and immunohistochemical stains are not routinely needed for diagnosing hair disorders.

Dermoscopy is useful for many health professionals, not just dermatologists, in improving skin condition diagnoses and reducing unnecessary biopsies.

LGR5 and LGR6 are expressed differently in various skin tumors, which may offer clues about their origins.