7 citations
,
March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
1 citations
,
October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
5 citations
,
March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
3 citations
,
April 2011 in “Journal of the American Academy of Dermatology” A 19-year-old man had a rare skin condition on one side of his face that looked like another skin disease.
September 2025 in “Cureus” Plica neuropathica can occur with diffuse alopecia and should be considered in diagnosis.
January 2023 in “Journal of Cutaneous Pathology” The study found certain scalp biopsy features can help tell apart alopecia areata from pattern hair loss even when typical immune cells are not seen.
21 citations
,
April 2019 in “Clinical, cosmetic and investigational dermatology” The document concludes that stopping shaving or removing affected hair can alleviate Pseudofolliculitis barbae (PFB).
April 2025 in “Dermatology Practical & Conceptual” UV-enhanced trichoscopy helps diagnose hair shaft disorders like pili annulati.
February 2026 in “Skin Appendage Disorders” Pseudofolliculitis barbae is linked to higher rates of anxiety and depression.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
January 2015 in “Turkiye Klinikleri Journal of Dermatology” Peripilar keratin casts are a helpful sign for diagnosing traction alopecia.
March 2019 in “Nasza Dermatologia Online” A rare scalp condition with hair loss was correctly diagnosed and treated, leading to hair regrowth.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
96 citations
,
February 2002 in “Journal of the American Academy of Dermatology” Pseudofolliculitis barbae is a chronic skin condition affecting mainly African American and Hispanic individuals, caused by shaving tightly curled hair, and managed by prevention and treatment but not curable.
7 citations
,
July 2011 in “Survey of Ophthalmology” The document concludes that periocular hair disorders have various causes and treatments, and proper evaluation by specialists is important for management and prognosis.
June 2022 in “Indian journal of clinical and experimental opthalmology” The report shows a young man with Hutchinson-Gilford Progeria Syndrome had typical and additional eye problems related to the disease.
3 citations
,
August 2019 in “International Journal of Dermatology” Dermoscopy is useful for diagnosing lichen planopilaris and certain features may relate to disease duration, age, and gender.
Pseudopelade is likely an independent disease due to its distinct features.
17 citations
,
July 1977 in “International Journal of Dermatology” Proper shaving techniques and specific topical treatments can help manage pseudofolliculitis barbae.
17 citations
,
September 2010 in “Pediatric dermatology” A 15-year-old with KID syndrome developed a rare skin condition called PEHFN.
64 citations
,
July 1997 in “Journal of The American Academy of Dermatology” Finding eosinophils near hair bulbs helps diagnose alopecia areata.
53 citations
,
September 2011 Other common signs, not just the well-known immune cells around hair bulbs, are important for diagnosing hair loss from alopecia areata.
9 citations
,
June 2017 in “Journal of Cutaneous Pathology” People with pemphigus vulgaris and pemphigus foliaceus often have smaller sebaceous glands on their scalp.
4 citations
,
January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
12 citations
,
March 2004 in “Journal of Investigative Dermatology”
19 citations
,
September 2014 in “JAMA Dermatology” Eosinophilic infiltrate is not a reliable indicator for diagnosing chronic alopecia areata.
January 2018 in “Skin appendage disorders” A woman's hair loss was correctly diagnosed as Lichen planopilaris after initial misdiagnosis, highlighting the usefulness of trichoscopy in diagnosing hair disorders.
July 2023 in “Dermatology Practical & Conceptual” A positive anagen pull test can help detect active Lichen Planopilaris.
September 2025 in “Ukrainian Journal of Dermatology Venerology Cosmetology” Early diagnosis and treatment can stop hair loss and prevent scalp damage in pseudopelade of Brocq.
March 2022 in “Folia Medica Indonesiana” The lump on a woman's scalp was a rare, potentially cancerous tumor from the hair follicle, not a common cyst.