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Zogob LPR, Cortez de Almeida RF, Tortelly V. Trichoscopy of Central Centrifugal Cicatricial Alopecia: A Retrospective Study and Literature Review. Skin Appendage Disord 2024; 10:415-420. [PMID: 39386312 PMCID: PMC11460863 DOI: 10.1159/000538912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 04/12/2024] [Indexed: 10/12/2024] Open
Abstract
Introduction Central centrifugal cicatricial alopecia (CCCA) is the most common cause of scarring alopecia in middle-aged black women. Trichoscopy is a noninvasive tool for diagnosis and follow-up of hair and scalp disorders. To date, limited studies have focused on its applicability to CCCA in existing literature. Methods The present study aimed to describe the trichoscopic findings of 11 dark-skinned women with confirmed CCCA and provide a comprehensive discussion of our current knowledge regarding trichoscopy of this disease through a literature review. A thorough understanding of CCCA trichoscopy holds significant promise for early confirmation and treatment. Conclusion By doing so, it is possible to mitigate the development of complications and alleviate the subsequent impact on patients' quality of life.
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Affiliation(s)
- Luiz Paulo Rocha Zogob
- Department of Dermatology, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | | | - Violeta Tortelly
- Department of Dermatology, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
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2
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Sow YN, Jackson TK, Taylor SC, Ogunleye TA. Lessons from a scoping review: Clinical presentations of central centrifugal cicatricial alopecia. J Am Acad Dermatol 2024; 91:259-264. [PMID: 38521463 DOI: 10.1016/j.jaad.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 02/10/2024] [Accepted: 03/05/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Central centrifugal cicatricial alopecia (CCCA) nomenclature describes a typical clinical presentation of cicatricial hair loss that begins on the vertex scalp with progressive, symmetric, and centrifugal evolution. However, atypical presentations have been noted clinically by the authors and reported in the literature. OBJECTIVE We sought to characterize the distribution of hair loss in published cases of adult patients with CCCA. METHODS A 3-step search process was used to evaluate research articles in Cumulative Index to Nursing & Allied Health, EMBASE, Google Scholar, MEDLINE, Scopus, and Web of Science databases. Studies with scalp photography or description of hair loss distribution were included. Three researchers evaluated eligible studies for clinical subtypes. Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Review was used to report results. RESULTS Ninety-nine studies consisting of 281 cases of CCCA were included. Hair loss distributions included variants of the classic presentation along with distinct subtypes such as patchy, occipital, parietal, frontal, temporal, and trichorrhexis. LIMITATIONS Studies had significant homogeneity, as the classic distribution of CCCA was commonly reported. Additionally, clinically diagnosed cases may have concurrent diagnoses, and numerous studies did not report trichoscopy findings. CONCLUSION CCCA terminology may not always be reflective of clinical presentation. Understanding atypical presentations is essential to inform appropriate and targeted treatment.
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Affiliation(s)
| | | | - Susan C Taylor
- Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Temitayo A Ogunleye
- Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
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Hong YK, Hwang DY, Yang CC, Cheng SM, Chen PC, Aala WJ, I-Chen Harn H, Evans ST, Onoufriadis A, Liu SL, Lin YC, Chang YH, Lo TK, Hung KS, Lee YC, Tang MJ, Lu KQ, McGrath JA, Hsu CK. Profibrotic Subsets of SPP1 + Macrophages and POSTN + Fibroblasts Contribute to Fibrotic Scarring in Acne Keloidalis. J Invest Dermatol 2024; 144:1491-1504.e10. [PMID: 38218364 DOI: 10.1016/j.jid.2023.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/05/2023] [Accepted: 12/19/2023] [Indexed: 01/15/2024]
Abstract
Acne keloidalis is a primary scarring alopecia characterized by longstanding inflammation in the scalp causing keloid-like scar formation and hair loss. Histologically, acne keloidalis is characterized by mixed leukocytic infiltrates in the acute stage followed by a granulomatous reaction and extensive fibrosis in the later stages. To further explore its pathogenesis, bulk RNA sequencing, single-cell RNA sequencing, and spatial transcriptomics were applied to occipital scalp biopsy specimens of lesional and adjacent no-lesional skin in patients with clinically active disease. Unbiased clustering revealed 19 distinct cell populations, including 2 notable populations: POSTN+ fibroblasts with enriched extracellular matrix signatures and SPP1+ myeloid cells with an M2 macrophage phenotype. Cell communication analyses indicated that fibroblasts and myeloid cells communicated by SPP1 signaling networks in lesional skin. A reverse transcriptomics in silico approach identified corticosteroids as possessing the capability to reverse the gene expression signatures of SPP1+ myeloid cells and POSTN+ fibroblasts. Intralesional corticosteroid injection greatly reduced SPP1 and POSTN gene expression as well as acne keloidalis disease activity. Spatial transcriptomics and immunofluorescence staining verified microanatomic specificity of SPP1+ myeloid cells and POSTN+ fibroblasts with disease activity. In summary, the communication between POSTN+ fibroblasts and SPP1+ myeloid cells by SPP1 axis may contribute to the pathogenesis of acne keloidalis.
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Affiliation(s)
- Yi-Kai Hong
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
| | - Daw-Yang Hwang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Chao-Chun Yang
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
| | - Siao Muk Cheng
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Peng-Chieh Chen
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wilson Jr Aala
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hans I-Chen Harn
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Spencer T Evans
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Alexandros Onoufriadis
- St John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Si-Lin Liu
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chen Lin
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Han Chang
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tzu-Kun Lo
- Department of Dermatology, Tainan Municipal An-Nan Hospital, Tainan, Taiwan
| | - Kuo-Shu Hung
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Chao Lee
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Ming-Jer Tang
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan; Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kurt Q Lu
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - John A McGrath
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; St John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Chao-Kai Hsu
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan; Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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4
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Lyakhovitsky A, Zilbermintz T, Segal Z, Galili E, Shemer A, Jaworowski B, Baum S, Hermush V, Kaplan B, Barzilai A. Exploring Remission Dynamics and Prognostic Factors in Lichen Planopilaris: A Retrospective Cohort Study. Dermatology 2024; 240:531-542. [PMID: 38574470 DOI: 10.1159/000538355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/10/2024] [Indexed: 04/06/2024] Open
Abstract
INTRODUCTION Lichen planopilaris (LPP) is a common type of primary cicatricial alopecia. Previous studies focused on the epidemiology, clinical characteristics, and treatment of LPP. A lack of knowledge regarding LPP outcomes and prognostic factors remained. METHODS To delineate the rate and timing of remission in LPP, as well as the prognostic factors for achieving remission, a retrospective cohort study was conducted. The study included 126 patients, from a single tertiary center, diagnosed with LPP between January 2010 and December 2022, who were followed up for a minimum of 6 months. RESULTS There were 89 (70.6%) women and 37 (29.4%) men included in this study. The mean age of the patients was 47.92 ± 14.2 years. The mean time from disease onset to diagnosis was 33.85 (±30) months, indicating significant diagnostic delays. The mean duration of follow-up was 34.13 ± 22.7 months. Among the cohort, 43 patients achieved complete remission (CR) during the follow-up period, whereas 83 patients did not. Of the 83 patients who did not achieve CR, 35 partially improved and 48 did not improve or worsened. The median time for achieving CR was 46 ± 18.8 months. Milder disease at presentation and comorbid lichen planus were associated with higher CR rates. CONCLUSION This study demonstrates significant diagnostic delays that should be addressed as LPP causes irreversible alopecia, suggests disease severity and comorbid lichen planus as potential prognostic factors. Further, it emphasizes the limited efficacy of current treatments and the need for prolonged treatment in patients with LPP to achieve remission.
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Affiliation(s)
- A Lyakhovitsky
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - T Zilbermintz
- Education authority, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Z Segal
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - E Galili
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel,
| | - A Shemer
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - B Jaworowski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S Baum
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - V Hermush
- Laniado Medical Center, Adelson School of Medicine, Ariel University, Ariel, Israel
| | - B Kaplan
- Adelson School of Medicine, Ariel University, Ariel, Israel
| | - A Barzilai
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Pathology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
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Lyakhovitsky A, Segal O, Galili E, Thompson CT, Tzanani I, Scope A, Baum S, Barzilai A. Diagnoseverzögerung, komorbide Hidradenitis suppurativa und die prognostische Bedeutung bakterieller Kulturen bei Folliculitis decalvans: eine Kohortenstudie. J Dtsch Dermatol Ges 2023; 21:1469-1478. [PMID: 38082530 DOI: 10.1111/ddg.15202_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 07/09/2023] [Indexed: 12/18/2023]
Abstract
ZusammenfassungHintergrundFolliculitis decalvans (FD) ist eine primäre neutrophile vernarbende Alopezie, die häufig zu irreversiblem Haarverlust führt. Daten zu Epidemiologie, klinischen Merkmalen, Folgen und prognostischen Faktoren sind nur eingeschränkt verfügbar.ZielDie Beurteilung einer Patientenkohorte mit FD sowie die Charakterisierung schwerer Krankheitsverläufe und prognostischer Faktoren, die eine Remission verhindern.Patienten und MethodenDiese retrospektive Kohortenstudie umfasste 192 Patienten, bei denen zwischen 2010 und 2020 an einem tertiären Zentrum eine FD diagnostiziert und die mindestens sechs Monate nachverfolgt wurden.ErgebnisseDie Diagnose wurde im Mittel um 22,2 (± 29,7) Monate verzögert gestellt. Komorbide Erkrankungen mit Okklusion der Haarfollikel waren häufig. In 45,6% der Fälle waren Bakterienkulturen positiv, am häufigsten mit Staphylococcus (S.) aureus. Schwere Krankheitsverläufe waren mit komorbider Hidradenitis suppurativa und positiver Bakterienkultur, insbesondere S. aureus, assoziiert. Bei 50,7% der Patienten kam es zu vollständiger Remission: Bei 32% innerhalb der ersten sechs Monate der Behandlung und bei 18,7% während der Nachkontrolle. Rezidive waren häufig. Negative Prognosefaktoren bezüglich der Remission waren jüngeres Alter und positive Bakterienkultur.SchlussfolgerungenEs besteht Bedarf hinsichtlich der Ausbildung von Dermatologen, um die Diagnoseverzögerung zu reduzieren. Das Screening von FD‐Patienten auf komorbide Hidradenitis suppurativa und Bakterienkulturen sind wichtig für die Behandlungsplanung.
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Affiliation(s)
- Anna Lyakhovitsky
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Oz Segal
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Eran Galili
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Curtis T Thompson
- CTA Pathology, Portland, USA
- Departments of Dermatology and Pathology, Oregon Health Sciences University, Portland, USA
| | - Ido Tzanani
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Alon Scope
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Kittner Skin Cancer Screening and Research Institute, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Sharon Baum
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Aviv Barzilai
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Institute of Pathology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
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Lyakhovitsky A, Segal O, Galili E, Thompson CT, Tzanani I, Scope A, Baum S, Barzilai A. Diagnostic delay, comorbid hidradenitis suppurativa and the prognostic value of bacterial culture in folliculitis decalvans: A cohort study. J Dtsch Dermatol Ges 2023; 21:1469-1477. [PMID: 37875786 DOI: 10.1111/ddg.15202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 07/09/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND Folliculitis decalvans (FD) is a type of primary neutrophilic cicatricial alopecia often leading to irreversible hair loss. Data on its epidemiology, clinical features, outcomes, and prognostic factors are limited. OBJECTIVE To evaluate a cohort of patients with FD and identify characteristics of severe disease and prognostic factors which impede remission. PATIENTS AND METHODS This retrospective cohort study included 192 patients diagnosed with FD and followed for at least six months at a tertiary center between 2010 and 2020. RESULTS There was a diagnostic delay averaging 22.2 (± 29.7) months. Comorbid follicular occlusion disorders were common. Bacterial cultures were positive in 45.6% of the cases, with Staphylococcus (S.) aureus being the most common pathogen. Severe disease was associated with comorbid hidradenitis suppurativa and a positive bacterial culture, particularly S. aureus. 50.7% of patients experienced complete remission: 32% within the first six months of treatment and 18.7% later during follow-up. Relapses were frequent. Negative prognostic factors for achieving remission included younger age and a positive bacterial culture. CONCLUSIONS There is a need for the education of dermatologists to reduce the diagnostic delay. Screening FD patients for comorbid hidradenitis suppurativa and obtaining bacterial cultures is important for treatment planning.
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Affiliation(s)
- Anna Lyakhovitsky
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Oz Segal
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Eran Galili
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Curtis T Thompson
- CTA Pathology, Portland, USA
- Departments of Dermatology and Pathology, Oregon Health Sciences University, Portland, USA
| | - Ido Tzanani
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Alon Scope
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Kittner Skin Cancer Screening and Research Institute, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Sharon Baum
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Aviv Barzilai
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Institute of Pathology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
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Williams KA, Wondimu B, Ajayi AM, Sokumbi O. Skin of color in dermatopathology: does color matter? Hum Pathol 2023; 140:240-266. [PMID: 37146946 DOI: 10.1016/j.humpath.2023.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/26/2023] [Indexed: 05/07/2023]
Abstract
Skin of color (SoC) remains an understudied and under taught area of dermatology despite its rising importance. Race and ethnicity play a particularly important role in dermatology as skin pigmentation can affect the manifestation and presentation of many common dermatoses. With this review, we seek to review pertinent differences in SoC histology, as well as highlight the histopathology of conditions more common in SoC and address inherent bias that may affect accurate dermatopathology sign out.
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Affiliation(s)
- Kyle A Williams
- Department of Dermatology, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Bitania Wondimu
- Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, WA, 98195, USA
| | - Ayodeji M Ajayi
- Department of Dermatology, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Olayemi Sokumbi
- Department of Dermatology, Mayo Clinic, Jacksonville, FL, 32224, USA; Department of Laboratory Medicine & Pathology, Mayo Clinic, Jacksonville, FL, 32224, USA.
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Lyakhovitsky A, Tzanani I, Gilboa S, Segal O, Galili E, Baum S, Barzilai A. Changing spectrum of hair and scalp disorders over the last decade in a tertiary medical centre. J Eur Acad Dermatol Venereol 2023; 37:184-193. [PMID: 36066315 DOI: 10.1111/jdv.18570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 07/27/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Hair- and scalp-related disorders (HSRDs) encompass a wide range of conditions that affect people of all ages. OBJECTIVE To evaluate the workload and trends in HSRDs at an outpatient dermatological clinic in a tertiary medical centre over a 10-year period. METHODS Medical records for HSRD visits to the outpatient dermatology clinic at the Sheba Medical Center, an Israeli tertiary care center, were reviewed between 1 January, 2010 and 31 December, 2020. RESULTS There were 10,396 HSRD visits with a new-to-follow-up visit ratio of 1:1.9. The annual number of HSRD visits, as well as their proportion out of all dermatological outpatient visits, have increased from 295 (1.24%) in 2010 to 1726 (9.44%) in 2020. The patients' mean age was 35.3 years (women 39.5 years, men 28.8 years), age range 1-87 years. Over the decade, there was a growing predominance of women with an average female-to-male ratio of 2:1. The winter season accounted for 28.7% of annual visits, followed by the autumn (25.6%), summer (24.3%) and spring (21.4%). The most prevalent HSRDs included androgenetic alopecia (30.6%), alopecia areata (19.3%), telogen effluvium (15.4%), non-scarring folliculitis (15.4%), seborrheic dermatitis (14.9%), lichen planopilaris (7.1%) and folliculitis decalvans (6.6%). Androgenetic alopecia demonstrated the highest increase over the decade examined (from 17% to 32%). CONCLUSION HSRDs account for a significant percentage of visits at a tertiary dermatology outpatient clinic. The number of HSRD visits has increased annually over the past decade. The recent advancement in diagnosis and treatment may account, at least in part, for the growing burden of HSRDs within dermatological ambulatory care.
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Affiliation(s)
| | - Ido Tzanani
- Department of Dermatology, Sheba Medical Center, Ramat-Gan, Israel
| | - Sarit Gilboa
- Department of Dermatology, Sheba Medical Center, Ramat-Gan, Israel
| | - Oz Segal
- Department of Dermatology, Sheba Medical Center, Ramat-Gan, Israel
| | - Eran Galili
- Department of Dermatology, Sheba Medical Center, Ramat-Gan, Israel
| | - Sharon Baum
- Department of Dermatology, Sheba Medical Center, Ramat-Gan, Israel
| | - Aviv Barzilai
- Department of Dermatology, Sheba Medical Center, Ramat-Gan, Israel.,Institute of Pathology, Sheba Medical Center, Ramat-Gan, Israel
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9
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Hashmi AA, Rashid K, Ali R, Dowlah TU, Ali AH, Diwan MA, Malik UA, Irfan M, Zia S, Ahmad A. Clinicopathological Features of Alopecia With an Emphasis on Etiology and Histopathological Characteristics of Scarring Alopecia. Cureus 2022; 14:e27661. [PMID: 36072194 PMCID: PMC9440352 DOI: 10.7759/cureus.27661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2022] [Indexed: 11/05/2022] Open
Abstract
Introduction Alopecia is a common dermatological condition with varied etiologies based on age, gender and geographic location. Non-cicatricial (non-scarring) alopecia is more common but often not biopsied. Alternatively, primary cicatricial (scarring) alopecia is diagnostically more challenging and more commonly biopsied to determine the etiology. In this study, we evaluated the clinicopathological characteristics of alopecia in our population. Methods We conducted a retrospective study at the Department of Histopathology, Liaquat National Hospital and Medical College, Pakistan. A total of 104 patients were enrolled in the study who underwent scalp biopsy for alopecia over a period of 11 years. Clinical data were obtained from clinical referral forms, which included age, sex of the patients and duration of the lesions. Three hematoxylin and eosin-stained tissue sections, along with periodic acid-Schiff (PAS), PAS with diastase and collagen stains were examined, and histopathological diagnosis was rendered. Results Our study demonstrated that alopecia was more prevalent among females, accounting for 73.1% of cases. Most of the patients belonged to the age group of <35 years (53.8%). The type of alopecia in 88.5% of the cases was scarring, while there were 11.5% cases of non-scarring alopecia. The most common diagnoses were discoid lupus erythematosus (DLE) (23.1%) and pseudopelade of Brocq (PB) (23.1%), followed by lichen planopilaris (LPP) (15.4%). A significant association was noted between the histological features and the diagnosis, as epidermal atrophy was the most common histological feature in most cases of DLE, followed by periadnexal infiltrates, lymphocytic infiltrates, follicular plugging and basement membrane thickening. In LPP, the most common histological features were perifollicular infiltrates and fibrosis. In PB, the frequently recurring histological features in most cases were the loss of sebaceous glands, dermal fibrosis and epidermal thinning. Conclusion In this study, we demonstrated the key role of skin punch biopsy and histology in determining the accurate etiology of scarring alopecia. We found discoid lupus erythematosus and pseudopelade of Brocq to be the most common causes of scarring alopecia, followed by lichen planopilaris.
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10
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Uchiyama M. Primary cicatricial alopecia: Recent advances in evaluation and diagnosis based on trichoscopic and histopathological observation, including overlapping and specific features. J Dermatol 2021; 49:37-54. [PMID: 34866229 DOI: 10.1111/1346-8138.16252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 12/27/2022]
Abstract
Primary cicatricial alopecia (PCA) is a form of alopecia in which inflammatory cells target follicles, including the bulge region containing follicular stem cells, leading to permanent alopecia. New classifications of PCA subtypes have recently been proposed, including those that account for novel trichoscopic and histopathological features of PCA, enabling greater precision in the evaluation and diagnosis of this condition. Nonetheless, diagnosis remains challenging clinically and histopathologically because the etiology of PCA is multifactorial. Inconsistent use of terminology, overlapping disease concepts, and changes in the clinical or histopathological severity of inflammation in the disease course in the same patient also make diagnosis quite challenging. The present study comprehensively reviews recent progress in diagnostic techniques, including the use of clinical, trichoscopic, and histopathological features, in evaluating each PCA subtype, containing overlapping and specific features. Elucidating the features of PCA, including those that are common to multiple subtypes as well as specific to each in both early and advanced-stage lesions, is important for accurate diagnosis. Improving the evaluation and treatment of this disease depends on having a broader clinical understanding that takes into account not only the features of the disease at a given point in time, but also the changes that occur during the entire disease course.
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Affiliation(s)
- Masaki Uchiyama
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
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11
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Mitchell KN, Tay YK, Heath CR, Trachtman R, Silverberg NB. Review article: Emerging issues in pediatric skin of color, part 1. Pediatr Dermatol 2021; 38 Suppl 2:20-29. [PMID: 34664330 DOI: 10.1111/pde.14775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dermatology for the pediatric skin of color population is the application of dermatology to the genetically diverse and distinctive segment of the pediatric population that includes children of non-White racial and ethnic groups with increased pigmentation including individuals of Asian, LatinX, African, Native American, Pacific Island descent, Indigenous Peoples, among others, with overlap in particular individuals, and mixtures thereof. Treating children of color is a unique skill set within the field of pediatric dermatology, requiring knowledge and sensitivity. The discipline of pediatric skin of color can be challenging. Difficulty in diagnosis of common conditions stems from underlying pigmentation, variations in common hairstyling practices, and differences in demographics of cutaneous disease, whereas some conditions are more common in children of color, other conditions have nuances in clinical appearance and/or therapeutics with regard to skin color. This article is the first in a series of two articles looking at recently published skin-related issues of high concern in children of color. Conditions reviewed in Part 1 include (1) hairstyling hair-related concerns (traction alopecia, central centrifugal cicatricial alopecia, endocrine disruption), (2) autoimmune concerns (cutaneous lupus, vitiligo), and (3) infections (tinea capitis, progressive macular hypomelanosis).
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Affiliation(s)
- Krystal N Mitchell
- Department of Dermatology, Icahn School of Medicine at Mt Sinai, New York, New York, USA
| | - Yong Kwang Tay
- Department of Dermatology, Changi General Hospital, Singapore, Singapore
| | - Candrice R Heath
- Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Rebecca Trachtman
- Department of Pediatrics, Division of Pediatric Rheumatology, Icahn School of Medicine at Mt Sinai, New York, New York, USA
| | - Nanette B Silverberg
- Department of Dermatology, Icahn School of Medicine at Mt Sinai, New York, New York, USA
- Department of Pediatrics, Icahn School of Medicine at Mt Sinai, New York, New York, USA
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Mardones F, Valenzuela K. Primary cicatricial alopecia profile in Chilean population: a retrospective study. Int J Dermatol 2021; 60:1568-1569. [PMID: 34633072 DOI: 10.1111/ijd.15942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/22/2021] [Accepted: 09/20/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Felipe Mardones
- Hospital Clínico Universidad de Chile José Joaquín Aguirre, Santiago, Chile.,Clínica Universidad de los Andes, Santiago, Chile
| | - Karen Valenzuela
- Hospital Clínico Universidad de Chile José Joaquín Aguirre, Santiago, Chile
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13
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Leerunyakul K, Suchonwanit P. Asian Hair: A Review of Structures, Properties, and Distinctive Disorders. Clin Cosmet Investig Dermatol 2020; 13:309-318. [PMID: 32425573 PMCID: PMC7187942 DOI: 10.2147/ccid.s247390] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/08/2020] [Indexed: 11/23/2022]
Abstract
Asian hair is known for its straightness, dark pigmentation, and large diameter. The cuticle layer in Asians is thicker with more compact cuticle cells than that in Caucasians. Asian hair generally exhibits the strongest mechanical properties, and its cross-sectional area is determined greatly by genetic variations, particularly from the ectodysplasin A receptor gene. However, knowledge on Asian hair remains unclear with limited studies. This article aimed to review and summarize the characteristics and properties of Asian hair. It also aimed to discuss hair disorders including linear lupus panniculitis and pseudocyst of the scalp that occur distinctively in Asian populations.
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Affiliation(s)
- Kanchana Leerunyakul
- Division of Dermatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Poonkiat Suchonwanit
- Division of Dermatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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14
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Rakhshan A, Toossi P, Amani M, Dadkhahfar S, Hamidi AB. Different distribution patterns of plasmacytoid dendritic cells in discoid lupus erythematosus and lichen planopilaris demonstrated by CD123 immunostaining. An Bras Dermatol 2020; 95:307-313. [PMID: 32299739 PMCID: PMC7253924 DOI: 10.1016/j.abd.2019.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 11/10/2019] [Indexed: 02/07/2023] Open
Abstract
Background Clinical and histological features may overlap between lichen planopilaris-associated and discoid lupus erythematosus-associated scarring alopecia. Objectives The aim of this study was to demonstrate the cutaneous infiltration of plasmacytoid dendritic cells and to compare their distribution pattern in discoid lupus erythematosus and lichen planopilaris. Methods Twenty-four cases of discoid lupus erythematosus and 30 cases of lichen planopilaris were examined for immunostaining of the CD123 marker. The percentage and distribution pattern of plasmacytoid dendritic cells and the presence of the plasmacytoid dendritic cells clusters were evaluted in the samples. Results The number of plasmacytoid dendritic cells was higher in the discoid lupus erythematosus specimens. Aggregations of 10 cells or more (large cluster) were observed in half of the discoid lupus erythematosus specimens and only 2 lichen planopilaris, with 50% sensitivity and 93% specificity for differentiating discoid lupus erythematosus from lichen planopilaris. Study limitations Incidence and prevalence of discoid lupus erythematosus-associated scarring alopecia in the scalp are low, so the samples size of our study was small. Conclusions We suggest that a plasmacytoid dendritic cells cluster of 10 cells or more is highly specific for distinguishing discoid lupus erythematosus from lichen planopilaris. It also appears that CD123 immunolabeling is valuable in both active and late stages of the disease.
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Affiliation(s)
- Azadeh Rakhshan
- Department of Pathology, Shohada-e Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parviz Toossi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Shohada-e Tajrish Hospital, Tehran, Iran
| | - Maliheh Amani
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Shohada-e Tajrish Hospital, Tehran, Iran.
| | - Sahar Dadkhahfar
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Shohada-e Tajrish Hospital, Tehran, Iran
| | - Arash Bagheri Hamidi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Shohada-e Tajrish Hospital, Tehran, Iran
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15
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Cheng A, Lee C, Hsieh F, Lo T, Huang H, Hsu C, Lee JY, Yang C. “Spade sign” and inflammation/fibrosis limited to the upper and mid‐dermis as the pathognomonic features of acne keloidalis. J Dermatol 2019; 47:41-46. [DOI: 10.1111/1346-8138.15127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 09/24/2019] [Indexed: 11/28/2022]
Affiliation(s)
- An‐Yu Cheng
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
- Department of Dermatology Kaohsiung Chang Gung Memorial Hospital KaohsiungTaiwan
| | - Chaw‐Ning Lee
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
| | - Fu‐Nien Hsieh
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
- Department of Dermatology St. Martin De Porres Hospital ChiayiTaiwan
| | - Tzu‐Kun Lo
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
| | - Hsin‐Yu Huang
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
| | - Chao‐Kai Hsu
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
- International Center for Wound Repair and Regeneration National Cheng Kung University Tainan Taiwan
| | - Julia Yu‐Yun Lee
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
| | - Chao‐Chun Yang
- Department of Dermatology National Cheng Kung University Hospital College of Medicine National Cheng Kung University TainanTaiwan
- International Center for Wound Repair and Regeneration National Cheng Kung University Tainan Taiwan
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Yang A, Hannaford R, Kossard S. Folliculitis decalvans-like pustular plaques on the limbs sparing the scalp. Australas J Dermatol 2019; 61:54-56. [PMID: 31621894 DOI: 10.1111/ajd.13178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 08/26/2019] [Indexed: 11/29/2022]
Abstract
Folliculitis decalvans is a neutrophilic cicatricial alopecia characterised by progressive pustular folliculitis. Folliculitis decalvans is seen as a condition usually limited exclusively to the scalp and rarely affects the limbs. We present a case of a 63-year-old man with a 3-year history of progressive pustular folliculitis with inflammatory patches and central scarring alopecia on both forearms and a circumscribed patch on his right lower leg. His presentation, clinical course and isolation of Staphylococcus aureus together with the histopathological findings all supported a folliculitis decalvans-like pustular folliculitis limited to the limbs. Biopsies revealed follicular pustules, gross interfollicular fibrosis with plasma cells and concentric perifollicular fibrosis with lymphocytes, all features seen with folliculitis decalvans. The positive response to antibiotics combined with topical corticosteroids mirrored the response seen with scalp folliculitis decalvans. In contrast to the previously reported cases, the patient had no evidence of folliculitis decalvans on the scalp.
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Affiliation(s)
- Anes Yang
- University of Sydney, Sydney, New South Wales, Australia.,The Skin Hospital, Sydney, New South Wales, Australia
| | - Rodney Hannaford
- Mid North Coast Dermatology Outreach Clinic, Coffs Harbour, New South Wales, Australia
| | - Steven Kossard
- Kossard Dermatopathologists, Sydney, New South Wales, Australia
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