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GlossaryPeripilar Casts

small, white sheaths encircling hair shafts near the scalp

Peripilar casts are small, white, cylindrical sheaths that encircle the hair shaft near the scalp. They are often seen in conditions like alopecia areata or telogen effluvium and can be indicative of inflammation or other underlying scalp disorders. These casts can be mistaken for dandruff but are firmly attached to the hair and do not easily flake off.

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research Hair Casts

9 citations, January 1980 in “Dermatology”

Hair casts may be caused by repetitive hair pulling or styling and are often misdiagnosed.

research Dermatoscopy of Hair Shaft Disorders

68 citations, August 2012 in “Journal of the American Academy of Dermatology”

Dermatoscopy is a useful tool for diagnosing hair disorders and can help choose samples for more detailed analysis.

research A Novel Atypical Presentation of Frontal Fibrosing Alopecia Involving the Frontoparietal Scalp

4 citations, January 2020 in “Skin appendage disorders”

A woman with an unusual pattern of hair loss was confirmed to have Frontal Fibrosing Alopecia and treated with specific medications.

research Linear Morphea Alopecia: New Trichoscopy Findings

2 citations, January 2017 in “International Journal of Trichology”

Trichoscopy can reveal specific hair and scalp changes in linear morphea.

research Frontal Fibrosing Alopecia: Clinical Patterns and Associations

1 citations, September 2021 in “CRC Press eBooks”

Frontal Fibrosing Alopecia is a hair loss condition mainly affecting postmenopausal women, with unclear causes and various clinical patterns.

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community The MPB itch aka DHT itch is very real.

in Chat 9 upvotes 1 year ago

Hair loss itch is caused by DHT attacking follicles and stimulating nerves. Finasteride users who respond well don't experience this itch.

community What do these pictures say about my hair and scalp if anything? Miniaturization, inflammation, etc.?

in Research/Science 74 upvotes 2 years ago

Hair loss and scalp issues, with people discussing possible treatments such as Nizoral shampoo, Minoxidil, neem oil, and finasteride.