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Horizontal scalp biopsy sections are better for diagnosing alopecia areata, showing fewer hair follicles and more miniaturized hairs.

Most patients with chronic hair shedding did not progress to permanent hair loss, and one showed improvement with treatment.

Dupilumab may cause significant hair loss, which can reverse after stopping the drug.

A fungal infection can look like a different scalp condition in teens, leading to wrong treatment until proper tests are done.

A kidney transplant patient developed pink skin bumps with spiny centers on her face and limbs.

Hair loss in women can be due to abnormal hair growth cycles or damaged hair follicles, with the most common type being androgenetic alopecia; treatment varies by cause, and the psychological impact is significant.

Woman's hair loss diagnosis changed from CTE to AA; multiple biopsies important for accurate diagnosis.

Eruptive vellus hair cysts are rare and often misdiagnosed, requiring biopsy for accurate diagnosis.

A 91-year-old woman's hair turned black in one spot, with skin changes underneath.

A 65-year-old woman has a growing bald spot on her scalp.

The document explains the causes, types, diagnosis, and treatments of hair loss, and its psychological impact, especially on women.

The woman was diagnosed with lichen sclerosus, a rare skin condition, after initial misdiagnosis and ineffective treatments.

Transverse sections are better for non-scarring hair loss, vertical sections are better for lichen planopilaris, and either method works for other scarring hair loss types.

OCT can effectively diagnose different stages of hair loss non-invasively.

The pseudo 'fringe sign' can also appear in frontal fibrosing alopecia, not just in traction alopecia, showing that this condition may be more common than thought.

The document concludes that understanding hair follicle histology and the hair cycle is crucial for diagnosing alopecia.

RET mutation is important in familial medullary thyroid carcinoma, and BRAF mutation in papillary thyroid carcinoma is linked to more aggressive cancer and higher death rates.

CTE can distort results in hair growth trials, so exclude it carefully.

The document outlines a method for diagnosing hair loss and suggests specific treatments based on the diagnosis.

Acne inversa is an epithelial-driven disease where inflammation is caused by cyst rupture, and treatments should focus on preventing tendril growth for better results.

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

An elderly woman's upper lip lump, thought to be a mucocele, was actually a rare type of lymphoma usually found on legs, treated successfully with chemotherapy and radiation.

Two patients with lupus had an unusual type of hair loss not typical for the disease.

One cat with low thyroid hormone had growth issues, and another with high thyroid hormone had skin problems; both got better with treatment.

A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.

A woman with Parry-Romberg syndrome developed new curly hair on one side of her scalp, a condition not previously linked to the syndrome.

The most common cause of hair loss in children is tinea capitis, followed by alopecia areata and telogen effluvium.

Horizontal scalp biopsy sections effectively diagnose and predict MPAA, with follicular density and inflammation impacting hair regrowth.

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

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