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    64 results match your criteria Acne Keloidalis Nuchae

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    Acne keloidalis nuchae: risk factors and associated disorders - a retrospective study.
    Int J Dermatol 2017 Aug 30;56(8):828-832. Epub 2017 Jun 30.
    Department of Medicine, University of the West Indies, Kingston 7, Jamaica.
    Background: Acne keloidalis nuchae (AKN) is a chronic scarring folliculitis which usually occurs in young adult males of African descent. Studies have suggested that AKN may be associated with other dermatologic conditions and even general medical disorders. The aim of this study was to identify cutaneous and extracutaneous associated disorders and to examine risk factors in our population for developing AKN. Read More

    Acne keloidalis nuchae: prevalence, impact, and management challenges.
    Clin Cosmet Investig Dermatol 2016 14;9:483-489. Epub 2016 Dec 14.
    Dermatology Unit, Department of Medicine, College of Medicine, University of Ibadan, University College Hospital Ibadan, Oyo State, Nigeria.
    Acne keloidalis nuchae (AKN) also known as folliculitis keloidalis nuchae (FKN) is a chronic form of scarring folliculitis seen mostly in men of African descent. The term AKN is commonly used even though the condition is not a keloid, and the affected individuals do not have a tendency to develop keloids in other areas of the body. It is seen in post pubertal men and is rare after the age of 55 years. Read More

    Ethnic skin: Kids are not just little people.
    Clin Dermatol 2016 Nov - Dec;34(6):690-697. Epub 2016 Jul 12.
    Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL. Electronic address:
    There are numerous skin conditions that occur commonly in children with ethnic skin, including vitiligo, progressive macular hypomelanosis, pityriasis alba, acne keloidalis nuchae, pseudofolliculitis barbae, and keloids. Though these conditions occur in both children and adults, children may have different patterns of clinical presentation and response to therapy. In caring for such patients, important treatment considerations include side effects of systemic medications and tolerability of invasive procedures. Read More

    Treatment of Acne Keloidalis Nuchae: A Systematic Review of the Literature.
    Dermatol Ther (Heidelb) 2016 Sep 18;6(3):363-78. Epub 2016 Jul 18.
    Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
    Acne keloidalis nuchae (AKN) is a chronic inflammatory condition that leads to fibrotic plaques, papules and alopecia on the occiput and/or nape of the neck. Traditional medical management focuses on prevention, utilization of oral and topical antibiotics, and intralesional steroids in order to decrease inflammation and secondary infections. Unfortunately, therapy may require months of treatment to achieve incomplete results and recurrences are common. Read More

    Comparison of lidocaine/tetracaine cream and lidocaine/prilocaine cream for local anaesthesia during laser treatment of acne keloidalis nuchae and tattoo removal: results of two randomized controlled trials.
    Br J Dermatol 2017 Jan 10;176(1):81-86. Epub 2016 Dec 10.
    Department of Dermatology, Erasmus MC University Medical Centre Rotterdam, Rotterdam, the Netherlands.
    Background: Pain is a common adverse effect of dermatological laser procedures. Currently, no standard topical anaesthetic cream exists for deeper dermal laser procedures.

    Objectives: To compare the efficacy of lidocaine/tetracaine cream and lidocaine/prilocaine cream in reducing self-reported pain during deeper dermal laser treatment of acne keloidalis nuchae (AKN) and tattoos. Read More

    Ethnic hair disorders.
    Curr Probl Dermatol 2015 20;47:139-49. Epub 2015 Feb 20.
    The management of hair and scalp conditions is difficult in any patient, especially given the emotional and psychological implications of hair loss. This undertaking becomes even more challenging in the ethnic patient. Differences in hair care practices, hair shaft morphology, and follicular architecture add complexity to the task. Read More

    Refractory acne keloidalis nuchae treated with radiotherapy.
    Australas J Dermatol 2017 Feb 29;58(1):e11-e13. Epub 2015 Jul 29.
    Servicio de Dermatología, Hospital Costa del Sol, Marbella, Spain.
    Acne keloidalis nuchae (AKN) is difficult to treat, and the clinical response is usually poor. Few reports have been published about scarring alopecia treated with radiotherapy (RT). We report a case of AKN that had been refractory to various other treatments but which responded to RT with excellent clinical and cosmetic results. Read More

    Perceived aetiological factors of folliculitis keloidalis nuchae (acne keloidalis) and treatment options among Nigerian men.
    Br J Dermatol 2015 Jul;173 Suppl 2:22-5
    Department of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
    Background: Folliculitis keloidalis nuchae (FKN) also known as acne keloidalis is the commonest form of scarring alopecia occurring in African males. It occurs mostly in individuals of African descent. Its prevalence ranges from 1·6% to 16·1%. Read More

    Red face revisited: Disorders of hair growth and the pilosebaceous unit.
    Clin Dermatol 2014 Nov-Dec;32(6):784-99. Epub 2014 Mar 1.
    Sector of Dermatology and Post-Graduation Course, University Hospital, and School of Medicine, Federal University of Rio de Janeiro, Rua Dona Mariana 143/C-32, Botafogo 22280-020, Rio de Janeiro, Brazil.
    This paper reviews the recent literature on the diseases of the hair and pilosebaceous unit that may cause a red face. We discuss the epidemiology, clinicals, pathogenesis, and therapy of lichen planopilaris with its variants, discoid lupus erythematosus, folliculitis decalvans, dissecting folliculitis, acne keloidalis nuchae, pseudofolliculitis barbae, tinea capitis, tinea barbae, folliculitis of diverse causative factors and inflammatory follicular keratotic syndromes, ulerythema ophryogenes, atrophoderma vermiculatum, keratosis follicularis spinulosa decalvans, and folliculitis spinulosa decalvans. Read More

    Histologic features of alopecias: part II: scarring alopecias.
    Actas Dermosifiliogr 2015 May 24;106(4):260-70. Epub 2014 Oct 24.
    Servicio de Dermatología, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, España. Electronic address:
    The diagnosis of disorders of the hair and scalp can generally be made on clinical grounds, but clinical signs are not always diagnostic and in some cases more invasive techniques, such as a biopsy, may be necessary. This 2-part article is a detailed review of the histologic features of the main types of alopecia based on the traditional classification of these disorders into 2 major groups: scarring and nonscarring alopecias. Scarring alopecias are disorders in which the hair follicle is replaced by fibrous scar tissue, a process that leads to permanent hair loss. Read More

    Improving acne keloidalis nuchae with targeted ultraviolet B treatment: a prospective, randomized, split-scalp comparison study.
    Br J Dermatol 2014 Nov 1;171(5):1156-63. Epub 2014 Oct 1.
    Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD, 21231, U.S.A.
    Background: Acne keloidalis nuchae (AKN) is a chronic scarring folliculitis with fibrotic papules on the occipital scalp. Its treatment is limited and unsatisfactory.

    Objectives: To determine whether targeted ultraviolet B (tUVB) phototherapy will (i) improve the clinical appearance of AKN and (ii) induce extracellular matrix remodelling in affected lesions. Read More

    Folliculitis keloidalis nuchae and pseudofolliculitis barbae: are prevention and effective treatment within reach?
    Dermatol Clin 2014 Apr;32(2):183-91
    Department of Dermatology, Howard University College of Medicine, 2041 Georgia Avenue, Northwest, Washington, DC 20060, USA.
    Pseudofolliculitis barbae and folliculitis keloidalis nuchae are chronic follicular disorders disproportionately affecting men of African ancestry. This article explores the etiology, pathogenesis, treatment, and prevention strategies of these conditions. Effective treatment and prevention of these disorders involves pharmacologic and procedural interventions as well as behavioral modifications. Read More

    Dermatologic conditions in skin of color: part II. Disorders occurring predominately in skin of color.
    Am Fam Physician 2013 Jun;87(12):859-65
    Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
    Several skin conditions are more common in persons with skin of color, including dermatosis papulosa nigra, pseudofolliculitis barbae, acne keloidalis nuchae, and keloids. Dermatosis papulosa nigra is a common benign condition characterized by skin lesions that do not require treatment, although several options are available for removal to address cosmetic concerns. Pseudofolliculitis barbae occurs as a result of hair removal. Read More

    Health risks of the clean-shave chiskop haircut.
    S Afr Med J 2013 May 27;103(7):489-90. Epub 2013 May 27.
    Division of Dermatology, Faculty of Health Sciences, University of Cape Town, South Africa.
    The clean-shave haircut known locally as the chiskop is rare among females but popular with black South African men, who are also predisposed to folliculitis keloidalis nuchae (FKN) (keloids on the back of the head). During a previous study, participants described an unexpected symptom of haircut-associated bleeding. As this is not a widely recognised entity, we conducted the present study at an HIV clinic servicing the same population, with the objective of comparing the prevalences of haircut-associated bleeding and FKN in 390 HIV-positive subjects with published data for Langa (Western Cape, South Africa). Read More

    The efficacy of laser-assisted hair removal in the treatment of acne keloidalis nuchae; a pilot study.
    Eur J Dermatol 2012 Sep-Oct;22(5):645-50
    Dermatology Department, Faculty of Medicine, Cairo University, 13th Abrag Othman, Kornish El Maadi, Cairo 11431, Egypt.
    Background: Laser-assisted hair removal causes miniaturization of hair shafts which are the principal contributors to inflammation in acne keloidalis nuchae (AKN).

    Objective: To assess the efficacy of hair reduction by long pulsed Nd-YAG laser as a therapeutic modality for AKN.

    Methods: This interventional pilot trial included 16 patients with AKN who received 5 sessions of long pulsed Nd-YAG laser. Read More

    Folliculitis keloidalis nuchae is associated with the risk for bleeding from haircuts.
    Int J Dermatol 2011 Oct;50(10):1212-6
    Division of Dermatology Department of Statistical Sciences, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.
    Background: Folliculitis keloidalis nuchae (FKN), characterized by nucheal pimples and keloids, has a predilection for curly African hair. The disease is 10 times more common in males than females. The aim of this study was to investigate determinants of FKN in males. Read More

    Electrosurgical excision of acne keloidalis nuchae with secondary intention healing.
    J Clin Aesthet Dermatol 2011 Jan;4(1):36-9
    Acne keloidalis nuchae is an idiopathic, scarring folliculitis characterized by the formation of papules and pustules that may ultimately develop into tumor-like masses distributed on the nape of the neck and occipital region of the scalp. This hyperproliferative disorder is most commonly seen in African-American men. While the pathogenesis remains uncertain, precipitating factors include localized trauma, chronic irritation, seborrhea, and androgen excess. Read More

    Keloid formation occurring in the distribution of a congenital vascular malformation.
    Skinmed 2010 Sep-Oct;8(5):298-300
    Division of Dermatology, Loyola University Medical Center, Maywood, IL 60153, USA.
    A 35-year-old African American man presented with complaints of malodorous drainage from hypertrophic lesions on his occipital scalp (Figure 1, inset). The patient had no family history of keloid formation and no other keloids on his body. The hypertrophic mass on his scalp had been present for 10 years and had not been a result of any type of mechanical, surgical, or laser treatment. Read More

    Medical and surgical management of keloids: a review.
    J Drugs Dermatol 2010 Oct;9(10):1249-57
    Southern Illinois University, Division of Dermatology, Springfield, IL, USA.
    Keloids and hypertrophic scars are abnormal responses to wound healing. In general, keloids may exhibit proliferative growth beyond the margins of the scar and will remain persistent; whereas hypertrophic scars will stay contained to the original wound and may regress over time. The authors will discuss the five different types of keloid: post-incisional, ear lobe, spontaneous, acne keloidalis nuchae (AKN) and sessile. Read More

    Acne keloidalis nuchae: another cutaneous symptom of metabolic syndrome, truncal obesity, and impending/overt diabetes mellitus?
    Am J Clin Dermatol 2010 Dec;11(6):433-6
    Diwalipura, Vadodara, India.
    Acne keloidalis nuchae (AKN) is an inflammatory disease related to the spectrum of keloidal scarring alopecias. No association with internal disease has been described so far. We describe a case series of four Indian patients who showed an association of AKN with acanthosis nigricans, a skin marker for the metabolic syndrome (in particular obesity). Read More

    Late complication after tropic storm accident: subcutaneous and intracranial actinomycetoma.
    Int Wound J 2008 Dec 19;5(5):655-9. Epub 2008 Sep 19.
    Amee Society, Diwalipura, Vadodara, India.
    We report a 53-year-old farmer who developed subcutaneous and cerebral masses 24 years after penetrating trauma during a tropic storm. Computed tomography scans, magnetic resonance imaging and histopathology disclosed actinomycetoma, a disease that rarely develops after trauma and is only occasionally seen with intracranial manifestation. Clinically, the cutaneous manifestation resembled acne keloidalis nuchae or dissecting folliculitis of the scalp. Read More

    Keratosis follicularis spinulosa decalvans associated with acne keloidalis nuchae and tufted hair folliculitis.
    Am J Clin Dermatol 2008 ;9(2):137-40
    Ayza Skin & Research Center, Lalamusa, Pakistan.
    Keratosis follicularis spinulosa decalvans is a rare, X-linked disorder characterized by scarring alopecia of the scalp and eyebrows in the setting of widespread keratosis pilaris. Less frequent associations are ocular abnormalities and palmoplantar keratoderma. Acne keloidalis nuchae has previously been described in one patient with keratosis follicularis spinulosa decalvans. Read More

    Surgical excision of acne keloidalis nuchae with secondary intention healing.
    Clin Exp Dermatol 2008 Jan 9;33(1):53-5. Epub 2007 Oct 9.
    Department of Dermatology, University Hospital of North Durham, Durham, UK.
    Acne keloidalis nuchae (AKN) is a chronic scarring folliculitis that presents clinically as follicular papules and pustules. These can coalesce into firm hypertrophic plaques and nodules on the nape of the neck, most commonly affecting young adult men. Treatment includes topical steroids/antibiotics and oral antibiotics, but often has disappointing results. Read More

    Hairdressing and the prevalence of scalp disease in African adults.
    Br J Dermatol 2007 Nov 24;157(5):981-8. Epub 2007 Aug 24.
    Division of Dermatology, Groote Schuur Hospital and the University of Cape Town, Observatory 7925, South Africa.
    Background: Anecdotal reports suggest that certain scalp disorders are common in Africans and may be associated with hairstyles.

    Objectives: This study of 874 African adults in Cape Town was performed to test this hypothesis.

    Methods: A questionnaire was administered and scalp examinations performed, after ethics approval. Read More

    Hairdressing is associated with scalp disease in African schoolchildren.
    Br J Dermatol 2007 Jul 6;157(1):106-10. Epub 2007 Jun 6.
    Division of Dermatology, Groote Schuur Hospital, University of Cape Town, Observatory 7925, South Africa.
    Background: Anecdotal reports suggest that certain disorders are common in African hair and may be associated with hairstyles.

    Objectives: A cross-sectional study of 1042 schoolchildren was performed to test this hypothesis.

    Methods: A questionnaire was administered and scalp examinations performed, after ethics approval. Read More

    Prevalence of acne keloidalis nuchae in Nigerians.
    Int J Dermatol 2007 May;46(5):482-4
    Department of Medicine and Medical Microbiology, College of Medicine, Ambrose Alli University, Ekpoma, Edo State, Nigeria.
    Background: The prevalence of acne keloidalis nuchae (AKN), a chronic inflammatory process of the hair follicles resulting in keloidal papules and plaques at the nape of the neck, is increasing in our environment.

    Methods: A prospective hospital-based observational study was conducted at the adult medical dermatologic outpatient department of Irrua specialist teaching hospital, Edo State, Nigeria. All patients referred to the dermatology clinic with symptoms and signs of AKN were recruited. Read More

    Prevalence of cutaneous adverse effects of hairdressing: a systematic review.
    Arch Dermatol 2006 Mar;142(3):377-83
    Division of Dermatology and School of Public Health and Family Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.
    Objective: To identify studies of the prevalence of cutaneous complications of hairdressing in (1) hairdressers and the general population and (2) those more common in people of African ancestry.

    Data Sources: Three versions of MEDLINE were searched from January 1966 through December 2004 and with a repeated search in August 2005 using 2 groups of search terms: group 1, terms used for hair care and specific study designs: survey, cross-sectional study, and cohort study; group 2, the terms African hair, Afro-Caribbean hair, African American hair, central centrifugal cicatricial alopecia, acne keloidalis nuchae, traction alopecia, and synonyms for each.

    Study Selection And Data Extraction: All identified cross-sectional and cohort studies of cutaneous adverse effects were included and their quality assessed using criteria developed by Radulescu et al. Read More

    Efficacy of diode laser for treating acne keloidalis nuchae.
    Indian J Dermatol Venereol Leprol 2005 Jan-Feb;71(1):31-4
    The Skin and Laser Centre, Mumbai, Maharashtra, India.
    Acne keloidalis nuchae is usually treated with oral antibiotics, local antiseptics or intralesional steroids but with limited success. I assessed the efficacy of diode laser for treating the inflammatory and keloidal papules of acne keloidalis nuchae in two cases. The lesions in both the cases showed about 90 to 95% clearance after 4 treatment sessions at one to one and half month intervals. Read More

    Keratosis follicularis spinulosa decalvans and acne keloidalis nuchae.
    Australas J Dermatol 2005 Nov;46(4):257-60
    Department of Dermatology, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.
    A 27-year-old man presented with a 10-year history of scarring alopecia on the vertex of the scalp associated with follicular crusting and pustule formation, and a papular eruption on the posterior neck. Additionally, there was keratosis pilaris on the cheeks, eyebrows and thighs. Histology from the vertex showed scarring with a mixed perifollicular inflammatory infiltrate and foci of acute suppurative folliculitis. Read More

    Keloid acne of the neck: epidemiological studies over 10 years.
    Int J Dermatol 2005 Oct;44 Suppl 1:49-50
    Department of Dermatology and Venereology, Centre National Hospitalier et Universitaire H. K. Maga, Cotonou, Benin.
    BACKGROUND Acne keloidalis nuchae is a chronic condition affecting young adult males of African origin. The frequency of the condition is low but its occurrence has a significant impact on the patient's quality of life. PATIENTS AND METHODS We performed a retrospective study on data collected over a period of 10 years in the Department of Dermatology and Venereology at the Centre National Hospitalier et Universitaire (CNHU) in Cotonou, Benin. Read More

    Acne keloidalis in females: case report and review of literature.
    J Natl Med Assoc 2005 May;97(5):736-8
    Dermatology Division, University College Hospital, Ibadan, Oyo State, Nigeria.
    Acne keloidalis, also known as folliculitis nuchae, is a form of chronic scarring folliculitis characterized by fibrotic papules and nodules of the nape of the neck and the occiput. It particularly affects men of African descent and is rarely ever seen in women. We here report the clinical findings of two Nigerian women who developed acne keloidalis. Read More

    Epidemiology of skin diseases in ethnic populations.
    Dermatol Clin 2003 Oct;21(4):601-7
    Skin of Color Center, St Luke's-Roosevelt Hospital Center, 1090 Amsterdam Avenue, Suite 1l-D, New York, NY 10025, USA.
    The spectrum of cutaneous disease occurring in ethnic populations is as broad and diverse as the ethnic populations themselves. Many skin diseases are seemingly common to most of the ethnic populations, however, including blacks, Hispanics, Asians, and Native Americans. These diseases include acne vulgaris; pigmentary disorders; eczematous dermatitis; and infection caused by bacteria, fungi, and viruses. Read More

    Epidemiology of skin diseases in people of color.
    Cutis 2003 Apr;71(4):271-5
    Department of Dermatology, Columbia University, and the Skin of Color Center, St. Luke's-Roosevelt Hospital Center, New York, New York 10025, USA.
    The epidemiology of skin diseases in people of color has not been extensively studied. Many skin diseases (eg, acne vulgaris; eczematous dermatitis; infections caused by bacteria, fungi, or viruses) are common to most people of color--blacks, Asians, Hispanics/Latinos, and Native Americans. Diseases of more cosmetic concern (eg, melasma, postinflammatory pigmentation, acne keloidalis nuchae, scalp and facial folliculitis, keloids, alopecias) occur more in skin of color than in white skin. Read More

    Study of the skin disease spectrum occurring in an Afro-Caribbean population.
    Int J Dermatol 2003 Apr;42(4):287-9
    Musgrave Medical Centre, Kingston, Jamaica.
    Background: There is a scarcity of recent up-to-date studies on the incidence of skin disease among Afro-Caribbeans.

    Methods: One thousand patients were retrospectively studied for the commonest diagnoses made over a 5-month period from January to May 2001.

    Results: The commonest skin diseases seen were acne vulgaris (29. Read More

    The surgical management of extensive cases of acne keloidalis nuchae.
    Arch Dermatol 2000 Nov;136(11):1376-9
    Department of Dermatology, University of Cincinnati, 9275 Montgomery Rd, Suite 100, Cincinnati, OH 45242, USA.
    Objective: To determine the efficacy of excision with primary closure in the treatment of extensive and refractory acne keloidalis nuchae (AKN).

    Design: Intervention before-after trial. Duration of follow-up ranged from 1 to 5 years. Read More

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