98 results match your criteria Acne Keloidalis Nuchae


High Frequency of Obesity in Acne Keloidalis Nuchae Patients: A Hypothesis from a Brazilian Study.

Skin Appendage Disord 2020 Nov 12;6(6):374-378. Epub 2020 Aug 12.

Dermatology Department, University of State of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil.

Acne keloidalis nuchae (AKN) is a chronic inflammatory condition that almost exclusively affects the occipital and nape areas. Although not completely understood, its etiopathogenesis seems to be multifactorial, including association with metabolic syndrome (MetS). Despite being commonly seen in patients with MetS, obesity per se as a possible related factor for AKN has yet to be studied. Read More

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November 2020

Acne keloidalis nuchae and thyroid diseases: a population-based cohort study.

Int J Dermatol 2021 Apr 10;60(4):466-470. Epub 2020 Dec 10.

Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.

Background: The association between acne keloidalis nuchae (AKN) and thyroid diseases is yet to be investigated.

Objective: To evaluate the risk of developing hypothyroidism and hyperthyroidism among patients with AKN and to characterize the patients who have AKN and thyroid comorbidities.

Methods: A population-based cohort study was conducted comparing AKN patients (n = 2,677) with age-, gender-, and ethnicity-matched control subjects (n = 13,190) with regard to incident cases of hypothyroidism and hyperthyroidism. Read More

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Acne keloidalis nuchae and hypertension in black subjects: a case-control study.

BMC Res Notes 2020 Sep 14;13(1):431. Epub 2020 Sep 14.

Service de Dermatolgie et IST, CHU Sylvanus Olympio, Université de Lomé, BP. 30785, Lome, Togo.

Objective: The aim of this case-control study was to look for an association between hypertension and acne keloidalis nuchae (AKN) in black subjects.

Results: We recruited 303 consenting subjects comprising 101 patients with AKN and 202 controls, case-matched by age (± 5 years). The mean patients age was 34. Read More

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September 2020

Acne Keloidalis Nuchae and the Metabolic Syndrome: A Population-Based Study.

Am J Clin Dermatol 2020 Oct;21(5):733-739

Department of Quality Measurements and Research, Chief Physician's Office, Clalit Health Services, Tel Aviv, Israel.

Background: The association between acne keloidalis nuchae (AKN) and the metabolic syndrome (MS) has been reported anecdotally. However, it is yet to be investigated in the setting of controlled studies, leaving this topic inconclusive in the current literature.

Objective: The aim was to estimate the association between AKN and the MS and its components, utilizing one of the largest cohorts of patients with AKN. Read More

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October 2020

Acne keloidalis nuchae with acanthosis nigricans of the neck: The pivotal role of the dermatologist in the early diagnosis of insulin resistance'.

Dermatol Ther 2020 11 19;33(6):e14102. Epub 2020 Aug 19.

Department of Dermatology and Allergology, Städtisches Klinikum Dresden, Dresden, Germany.

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November 2020

Hidradenitis suppurativa is associated with acne keloidalis nuchae: a population-based study.

Arch Dermatol Res 2020 Jul 16. Epub 2020 Jul 16.

Clalit Healthcare Services, Tel Aviv, Israel.

The association between acne keloidalis nuchae (AKN) and hidradenitis suppurativa (HS) is yet to be investigated. To determine the link between AKN and HS using a large computerized health maintenance database. A cross-sectional study design was used to assess the prevalence of HS in patients with AKN and in control participants matched by age, sex, and ethnicity. Read More

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Acne keloidalis nuchae in the armed forces.

Cutis 2020 May;105(5):223-226

Department of Dermatology, James A. Lovell Federal Health Care Center, North Chicago, Illinois, USA.

Acne keloidalis nuchae (AKN) is a chronic inflammatory skin disease characterized by the development of keloidlike papules, pustules, and plaques on the occipital scalp and posterior neck following mechanical trauma and irritation. First-line therapy involves avoidance of aggravating factors including short and frequent haircuts. Medical treatments-from topical and intralesional steroids, oral antibiotics, and UV light to laser and surgical excision-have demonstrated varying degrees of efficacy. Read More

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Sarcoidosis: An atypical mimicker of acne keloidalis nuchae.

JAAD Case Rep 2020 May 29;6(5):397-399. Epub 2020 Apr 29.

Department of Dermatology, Perelman School of Medicine, Philadelphia, Pennsylvania.

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[Risk factors associated with acne keloidalis nuchae, in black subjects: A case-control study].

Ann Dermatol Venereol 2020 May 18;147(5):350-354. Epub 2020 Feb 18.

Service de dermatologie et IST, CHU Sylvanus Olympio, Lomé, Togo.

Objective: The aim of this case-control study was to identify risk factors associated with acne keloidalis nuchae (AKN), seen in a dermatology clinic in Lomé (Togo).

Patients And Methods: This was a case-control study conducted from January to December 2018. Patients were recruited at outpatients dermatological clinics and controls were recruited at outpatients dermatological clinics and then in other hospital departments. Read More

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Dilation of Multiple Eccrine Ducts as a Highly Specific Marker for Cicatricial Alopecia.

Am J Dermatopathol 2019 Dec;41(12):871-878

Assistant Professor, Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL.

Background: Eccrine duct dilation (EDD) was recently described to occur more frequently in cicatricial alopecias than noncicatricial alopecias. Because single EDD can be useful in the evaluation of alopecias, we aimed to determine whether dilation of multiple eccrine duct units, or "multiple eccrine duct dilation (MEDD)," could more specifically discriminate between cicatricial and noncicatricial alopecias.

Methods: We retrospectively evaluated 611 scalp biopsies (342 cicatricial alopecias and 269 noncicatricial alopecias). Read More

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December 2019

"Spade sign" and inflammation/fibrosis limited to the upper and mid-dermis as the pathognomonic features of acne keloidalis.

J Dermatol 2020 Jan 23;47(1):41-46. Epub 2019 Oct 23.

Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Acne keloidalis (AK) is one of the primary cicatricial alopecias and predominantly affects men of African descent. Reports in Asians are scant. This study aimed to retrospectively review the clinical and histopathological features of AK patients in southern Taiwan and identify the pathognomonic features of AK. Read More

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January 2020

Frequency of the Types of Alopecia at Twenty-Two Specialist Hair Clinics: A Multicenter Study.

Skin Appendage Disord 2019 Aug 2;5(5):309-315. Epub 2019 Apr 2.

Department of Dermatology and Cutaneous Surgery, University of Miami L. Miller School of Medicine, Miami, Florida, USA.

Background: The frequency of different types of alopecia is not clearly reported in recent studies.

Objective: To analyze the frequency of the types of alopecia in patients consulting at specialist hair clinics (SHC) and to assess for global variations.

Methods: Multicenter retrospective study including data from patients evaluated at referral SHC in Europe, America, Africa and Australia. Read More

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Hidradenitis Suppurativa in a Patient with Smith-Magenis Syndrome: A Case Report.

Cureus 2019 Jun 22;11(6):e4970. Epub 2019 Jun 22.

Dermatology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, USA.

Hidradenitis suppurativa (HS) is an inflammatory disorder characterized by recurrent painful nodules and draining sinus tracts with subsequent scarring. HS has been associated with several dermatologic syndromes including the follicular occlusion tetrad, PASH (pyoderma gangrenosum, acne, and suppurativa hidradenitis), PAPASH (pyogenic arthritis, pyoderma gangrenosum, acne, and suppurativa hidradenitis), and SAPHO (synovitis, acne, pustulosis, hyperostosis, and osteitis) syndromes. However, aside from the well-established association between HS and Down Syndrome, it has rarely been reported in association with other multisystem genetic diseases. Read More

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Innovative Surgical Approaches and Selection Criteria of Large Acne Keloidalis Nuchae Lesions.

Plast Reconstr Surg Glob Open 2019 May 16;7(5):e2215. Epub 2019 May 16.

Division of Dermatology, Department of Medicine, Harbor-UCLA, Torrance, Calif.

Background: Acne keloidalis nuchae is a debilitating condition mainly affecting the occipital region or nape of the neck. Surgical approaches are limited in aesthetic outcomes. Three innovative surgical approaches based on selection criteria are presented for enhanced and more predictable wound healing and posterior hairline cosmesis. Read More

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Acne keloidalis nuchae and folliculitis decalvans: same process affecting the follicle or coexisting diseases? A retrospective study.

Int J Dermatol 2019 Oct 26;58(10):e200-e203. Epub 2019 Jun 26.

Division of Dermatology, Hospital das Clinicas, Medical School, University of São Paulo, Sao Paulo, Brazil.

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October 2019

Selection criteria and techniques for improved cosmesis and predictable outcomes in laser hair removal treatment of acne keloidalis nuchae.

Authors:
Sanusi Umar

JAAD Case Rep 2019 Jun 8;5(6):529-534. Epub 2019 Jun 8.

Department of Medicine, Dermatology Division, University of California at Los Angeles, Los Angeles, California.

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Laser Treatment of Skin of Color for Medical and Aesthetic Uses With a New 650-Microsecond Nd:YAG 1064nm Laser

J Drugs Dermatol 2019 Apr;18(4):s135-137

Individuals with skin of color are a rapidly growing portion of the cosmetic procedures market. There are unique challenges to treating skin conditions in skin of color patients. This article and roundtable discussion focus on the use of energy-based modalities, particularly a 650-microsecond 1064nm laser that delivers energy in a collimated beam. Read More

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Acne keloidalis nuchae in a Caucasian young man.

G Ital Dermatol Venereol 2019 Jun;154(3):360-361

Unit of Dermatology, Department of Neurosciences, Mental Health and Sense Organs (NESMOS), Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University, Rome, Italy.

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Acne keloidalis nuchae and obstructive sleep apnoea: a retrospective case series.

Clin Exp Dermatol 2019 Jul 15;44(5):e214-e215. Epub 2019 May 15.

Department of Dermatology, Oregon Health & Science University, Portland, OR, USA.

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Premature Desquamation of the Inner Root Sheath in Noninflamed Hair Follicles as a Specific Marker for Central Centrifugal Cicatricial Alopecia.

Am J Dermatopathol 2019 May;41(5):350-354

Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL.

Background: Premature desquamation of the inner root sheath (PDIRS) is considered one of the distinctive features in central centrifugal cicatricial alopecia (CCCA). However, PDIRS can be seen in other alopecia subtypes, and its utility in the diagnosis of CCCA has been debated. We aimed to examine a large cohort of alopecia cases for the presence of PDIRS in association with and without inflammation to determine whether PDIRS in noninflamed follicles can be used as a specific marker of CCCA. Read More

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Successful treatment of acne keloidalis nuchae with erbium:YAG laser: a comparative study.

J Cosmet Laser Ther 2018 Nov - Dec;20(7-8):419-423. Epub 2018 May 14.

a Dermatology, Venereology and Andrology Department , Faculty of Medicine, Zagazig University , Zagazig , Egypt.

Acne keloidalis nuchae (AKN) is a chronic inflammatory disease involving hair follicles of the neck. It is a form of keloidal scarring alopecia that is often refractory to medical or surgical management. To evaluate the efficacy of Er:YAG laser in the treatment of AKN as compared to long pulsed Nd:YAG laser. Read More

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Prospective Controlled Trial for the Treatment of Acne Keloidalis Nuchae With a Long-Pulsed Neodymium-Doped Yttrium-Aluminum-Garnet Laser.

J Cutan Med Surg 2018 Mar/Apr;22(2):236-238

1 Multicultural Dermatology Center, Department of Dermatology, Henry Ford Hospital, Detroit, MI, USA.

Background: Acne keloidalis nuchae (AKN) is a chronic scarring folliculitis with limited interventions of both high efficacy and low morbidity.

Objective: To assess the efficacy of the long-pulsed 1064-nm neodymium-doped yttrium-aluminum-garnet (Nd:YAG) laser and topical steroids as a treatment for AKN compared to topical steroids alone.

Methods: We conducted a single-blinded, randomised, within-patient right-left controlled trial (n = 13). Read More

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September 2018

Primary scarring alopecia: A retrospective study of 89 patients in Taiwan.

J Dermatol 2018 Apr 16;45(4):450-455. Epub 2018 Jan 16.

Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Primary scarring alopecia (PSA) is caused by irreversible damage to the hair epithelial stem cells that reside in hair follicles. There is limited published work regarding PSA amongst the Asian population. The aim of this study was to evaluate the clinical features and to characterize the subtypes of PSA in southern Taiwan. Read More

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Naked Hair Shafts as a Marker of Cicatricial Alopecia.

Am J Dermatopathol 2018 Jul;40(7):498-501

Departments of Dermatology, and.

Naked hair shafts (NHS) are free-floating hair shafts devoid of surrounding epithelium, supporting structures, and/or embedded in inflammation that may result from destruction of hair follicles by scarring processes such as inflammation and fibroplasia. Extensive examination of NHS has not been performed in scalp biopsies of alopecia. We retrospectively evaluated 622 scalp biopsies of alopecia [345 cicatricial alopecias (central centrifugal cicatricial alopecia, lichen planopilaris, discoid lupus erythematosus, acne keloidalis nuchae, and folliculitis decalvans] and 277 non-cicatricial alopecias [alopecia areata, androgenic alopecia, telogen effluvium, and psoriatic alopecia)] for the presence of NHS. Read More

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Acne keloidalis nuchae in Asian: A single institutional experience.

PLoS One 2017 14;12(12):e0189790. Epub 2017 Dec 14.

Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.

Acne keloidalis nuchae, a type of folliculitis involving the back of the neck, is common in black men, although rare cases have been reported in patients of other ethnicities. We analyzed the clinicopathological features of acne keloidalis nuchae in 17 Asians. Patients' age at the time of presentation ranged from 20 to 69 years. Read More

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December 2017

Considerations When Treating Cosmetic Concerns in Men of Color.

Dermatol Surg 2017 Nov;43 Suppl 2:S140-S150

*Department of Dermatology, The George Washington Medical Faculty Associates, Washington, DC; †Department of Dermatology, The George Washington University School of Medicine and Health Sciences, Washington, DC; ‡Department of Dermatology, Georgetown University School of Medicine, Washington, DC; §Division of Dermatology, University of California, Los Angeles, California.

Background: Men of color include a diverse population encompassing individuals with Fitzpatrick skin Types IV through VI. Yet, there is a paucity of data describing the cosmetic concerns of this population.

Objective: To review the basic science of advantages and disadvantages of skin of color and pathophysiology, incidence, and treatment of disorders of cosmetic concern in men of color. Read More

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November 2017

A Novel Treatment of Acne Keloidalis Nuchae by Long-Pulsed Alexandrite Laser.

Dermatol Surg 2018 Mar;44(3):413-420

Dermatology Department, New Cairo Hospital, Cairo, Egypt.

Background: Acne keloidalis nuchae (AKN) is a dermatological condition characterized by follicular-based papules and pustules that later form hypertrophic or keloid-like scars. Laser-assisted hair reduction such as 810-nm diode laser and 1,064-nm Nd:YAG laser have been used for treating AKN with promising results.

Objective: To evaluate the therapeutic effect and safety of alexandrite laser in the treatment of different lesions of AKN. Read More

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