{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T19:39:09Z","timestamp":1786649949110,"version":"build-2736575974"},"reference-count":15,"publisher":"Ovid Technologies (Wolters Kluwer Health)","license":[{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Primary cicatricial alopecia of the scalp encompasses neutrophilic, lymphocytic, mixed varieties, of which folliculitis decalvans belongs to the neutrophilic group and lichen planopilaris comes under the lymphocytic group. This is a case series of four patients who presented clinically with folliculitis decalvans and histopathology with overlapping features. Four patients presented with a history of painful scalp pustular lesions and hair loss with no other significant history. A clinical diagnosis of folliculitis decalvans was made, and a biopsy for histopathological examination with vertical and transverse sections was studied. The histopathology of cases revealed features consistent with both folliculitis decalvans and lichen planopilaris. Folliculitis decalvans and lichen planopilaris phenotypic spectrum is an emerging entity with fewer cases reported in the literature.<\/jats:p>","DOI":"10.4103\/ijd.ijd_1064_23","type":"journal-article","created":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T06:00:21Z","timestamp":1767160821000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Folliculitis Decalvans and Lichen Planopilaris Phenotypic Spectrum\u2014A Series of Four Patients"],"prefix":"10.4103","author":[{"given":"Sivagamasundari","family":"Shanmugakumar","sequence":"first","affiliation":[{"name":"From the Department of Dermatology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Reena","family":"Rai","sequence":"additional","affiliation":[{"name":"From the Department of Dermatology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Uma M.","family":"Gurusamy","sequence":"additional","affiliation":[{"name":"Department of Pathology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2025,11,26]]},"reference":[{"key":"R1-20260217","doi-asserted-by":"crossref","first-page":"1750","DOI":"10.1111\/jdv.12993","article-title":"Folliculitis decalvans:A multicentre review of 82 patients","volume":"29","author":"Va\u00f1\u00f3-Galv\u00e1n","year":"2015","journal-title":"J Eur Acad Dermatol Venereol"},{"key":"R2-20260217","doi-asserted-by":"crossref","first-page":"993","DOI":"10.2147\/CCID.S365566","article-title":"Folliculitis decalvans and lichen planopilaris phenotypic spectrum:A case report","volume":"15","author":"Zhang","year":"2022","journal-title":"Clin Cosmet Investig Dermatol"},{"key":"R3-20260217","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1097\/DAD.0000000000001595","article-title":"Folliculitis decalvans and lichen planopilaris phenotypic spectrum-A series of 7 new cases with focus on histopathology","volume":"42","author":"Egger","year":"2020","journal-title":"Am J Dermatopathol"},{"key":"R4-20260217","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1111\/ced.13989","article-title":"Folliculitis decalvans and lichen planopilaris phenotypic spectrum:A case series of biphasic clinical presentation and theories on pathogenesis","volume":"45","author":"Yip","year":"2020","journal-title":"Clin Exp Dermatol"},{"key":"R5-20260217","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1111\/exd.13916","article-title":"Folliculitis decalvans is characterized by a persistent, abnormal subepidermal microbiota","volume":"29","author":"Matard","year":"2020","journal-title":"Exp Dermatol"},{"key":"R6-20260217","doi-asserted-by":"crossref","first-page":"1243","DOI":"10.1038\/jid.2008.369","article-title":"Hair follicle stem cell-specific PPARgamma deletion causes scarring alopecia","volume":"129","author":"Karnik","year":"2009","journal-title":"J Invest Dermatol"},{"key":"R7-20260217","doi-asserted-by":"crossref","first-page":"236","DOI":"10.1002\/path.4233","article-title":"Lichen planopilaris is characterized by immune privilege collapse of the hair follicle's epithelial stem cell niche","volume":"231","author":"Harries","year":"2013","journal-title":"J Pathol"},{"key":"R8-20260217","doi-asserted-by":"crossref","first-page":"e165","DOI":"10.1016\/j.jaad.2018.12.055","article-title":"Fibrosis and stem cell epithelialmesenchymal transition in primary cicatricial alopecias","volume":"80","author":"Harries","year":"2019","journal-title":"J Am Acad Dermatol"},{"key":"R9-20260217","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1111\/exd.14062","article-title":"PPAR-? signalling as a key mediator of human hair follicle physiology and pathology","volume":"29","author":"Ramot","year":"2020","journal-title":"Exp Dermatol"},{"key":"R10-20260217","doi-asserted-by":"crossref","first-page":"361","DOI":"10.29021\/spdv.79.4.1389","article-title":"A new vision about folliculitis decalvans and lichen planopilaris:Two distinct entities or a continuous phenotypic spectrum?","volume":"79","author":"Marcos-Pinto","year":"2021","journal-title":"SPDV"},{"key":"R11-20260217","doi-asserted-by":"crossref","first-page":"e888","DOI":"10.1111\/jdv.17537","article-title":"Comment on:Folliculitis decalvans and lichen planopilaris phenotypic spectrum:A case report of two paediatric cases","volume":"35","author":"Tr\u00fceb","year":"2021","journal-title":"J Eur Acad Dermatol Venereol"},{"key":"R12-20260217","doi-asserted-by":"crossref","first-page":"e674","DOI":"10.1111\/jdv.17379","article-title":"Folliculitis decalvans and lichen planopilaris phenotypic spectrum:Case report of two paediatric cases","volume":"35","author":"Ramos","year":"2021","journal-title":"J Eur Acad Dermatol Venereol"},{"key":"R13-20260217","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1159\/000478268","article-title":"Lichen planopilaris with pustules:A diagnostic challenge","volume":"4","author":"Morais","year":"2018","journal-title":"Skin Appendage Disord"},{"key":"R14-20260217","doi-asserted-by":"crossref","first-page":"1355","DOI":"10.1016\/j.jaad.2020.10.073","article-title":"Folliculitis decalvans microbiologic signature is specific for disease clinical phenotype","volume":"85","author":"Moreno-Arrones","year":"2021","journal-title":"J Am Acad Dermatol"},{"key":"R15-20260217","doi-asserted-by":"crossref","first-page":"533","DOI":"10.1016\/j.abd.2021.11.013","article-title":"Case for diagnosis. Cicatricial alopecia on the vertex-Folliculitis decalvans and lichen planopilaris phenotypic spectrum","volume":"98","author":"Miola","year":"2023","journal-title":"An Bras Dermatol"}],"container-title":["Indian Journal of Dermatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/ijd.ijd_1064_23","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T19:00:19Z","timestamp":1786647619000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/ijd.ijd_1064_23"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,26]]},"references-count":15,"URL":"https:\/\/doi.org\/10.4103\/ijd.ijd_1064_23","relation":{},"ISSN":["0019-5154","1998-3611"],"issn-type":[{"value":"0019-5154","type":"print"},{"value":"1998-3611","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11,26]]},"assertion":[{"value":"2023-11-01","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-12-01","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}