Dermatosis papulosa nigra in Dakar, Senegal

Niang, S.; Kane, A.; Diallo, Moussa; Choutah, Flavienne; Dieng, MM; Ndiaye, B.

doi:10.1111/j.1365-4632.2007.03465.x

Cited by 21 publications

(10 citation statements)

References 8 publications

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“…61 Biopsies of these lesions show the same histopathological findings of seborrheic keratosis. 62 DPN carries a genetic predisposition and it is more frequent in women and African descendants, in whom the prevalence ranges from 10% to 35%, being even regarded as a racial variant of seborrheic keratosis.…”

Section: Acquired Hyperpigmentationsmentioning

confidence: 79%

“…62 DPN carries a genetic predisposition and it is more frequent in women and African descendants, in whom the prevalence ranges from 10% to 35%, being even regarded as a racial variant of seborrheic keratosis. 61-63 Typically, DPN lesions begin on the face and increase in size and number over the years, spreading to sun-exposed areas of the malar, neck and upper body regions without spontaneous regression. 61 …”

Section: Acquired Hyperpigmentationsmentioning

confidence: 99%

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Acquired hyperpigmentations

Cestari

Dantas

Boza

2014

An. Bras. Dermatol.

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Cutaneous hyperpigmentations are frequent complaints, motivating around 8.5% of all dermatological consultations in our country. They can be congenital, with different patterns of inheritance, or acquired in consequence of skin problems, systemic diseases or secondary to environmental factors. The vast majority of them are linked to alterations on the pigment melanin, induced by different mechanisms. This review will focus on the major acquired hyperpigmentations associated with increased melanin, reviewing their mechanisms of action and possible preventive measures. Particularly prominent aspects of diagnosis and therapy will be emphasized, with focus on melasma, post-inflammatory hyperpigmentation, periorbital pigmentation, dermatosis papulosa nigra, phytophotodermatoses, flagellate dermatosis, erythema dyschromicum perstans, cervical poikiloderma (Poikiloderma of Civatte), acanthosis nigricans, cutaneous amyloidosis and reticulated confluent dermatitis

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Section: Acquired Hyperpigmentationsmentioning

confidence: 79%

Section: Acquired Hyperpigmentationsmentioning

confidence: 99%

Acquired hyperpigmentations

Cestari

Dantas

Boza

2014

An. Bras. Dermatol.

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“…Niang and team carried out a prospective study on 30 DPN patients in Senegal. The analysis of results over a period of six months demonstrated ED as a perfect therapeutic modality [7] . Multiple expensive and high technology lasers were capturing the market gradually for different cosmetic and dermatosurgical conditions.…”

Section: Discussionmentioning

confidence: 99%

Electrosurgery in Dermatosis papulosa nigra: An effective, well-tolerated but less documented tool

et al. 2016

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Dermatosis papulosa nigra (DPN) is a superficial, black or brown benign papule that develops mainly in dark-skinned individuals over the face and neck. Clinically seborrheic keratosis shows a stuck-on appearance that differentiates it from DPN. Histopathological examination describes that both are identical. Many types of lasers are used as treatments for it. Traditional surgical procedures such as curettage, electrosurgery, and snip/shave excision are still considered as a therapeutic modality. Although electrodesiccation (ED) is a simple procedure, studies on ED use for DPN with a good number of cases are lacking. This paper presents the evaluation safety, efficacy and cost-effectiveness of ED for the treatment of DPN in Fitzpatrick"s skin type IV to VI. A total of 40 patients (11 male and 29 female) with DPN over the face and neck with skin type IV-VI were included. Superficial ED (monopolar, low, 2-3.5 W) was done by just touching the lesion under topical anesthesia. All preoperative photographs as well as 2-, 4-and 8-week post-procedure photographs were examined by two independent dermatologists who had no prior information concerning the procedure, (both known hereafter as "blinded observer"): one for examining efficacy in terms of poor improvement (0%-25%), fair (26%-50%), good (51%-75%), or excellent (76%-100%), by counting completely cleared lesions; and the other for examining side effects in terms of hypo/hyperpigmentation and scarring. As a result, 85% of patients showed excellent improvement (>75% clearance), 7.5% good (51%-75% clearance), 5% fair (26%-50% clearance) and 2% poor (0-25% clearance) as measured by the "blinded" observer. Post-inflammatory hyperpigmentation was observed in 15% cases, whereas hypo-pigmentation was documented in 7.5% cases. Only in two cases (5%) was lesional scarring noted. Those complications were cleared after eight weeks. In this study, ED was observed to be an effective, well-tolerated and cost-effective method for treatment of DPN in colored skin. Complications were few, and therapy was performed appropriately with effective postoperative measures. Keywords: Dermatosis papulosa nigra (DPN); electrodesiccation; colored skinCitation: Gorai S, Seth J, Bindal A, Samanta AB, Nag S, et al. Electrosurgery in dermatosis papulosa nigra: An effective, well-tolerated but less documented tool.

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“…Nevertheless, some authors were interested in some dermatosis which may affect adult woman generally 2,5,6 and in particular black African's face. 7,8 The prevalence is relatively low, and it may be justified by the pauperization and the fact that some patients preferred to consult a beautician for any facial care. The average age of our patients is 37.7.…”

Section: Discussionmentioning

confidence: 99%

Clinical and Epidemiological Aspect of Black African Adult Women With Facial Dermatosis

Isidore¹,

Sarah²,

Alexandre³

et al. 2017

Dermatol Open J

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During the 5 years, we registered 7,898 patients over 18-years-old, 1,192 of these were affected by facial dermatosis that is 15.09%. The mean age was 37.7 ranging from 18 to 89-years-old. There were at least two facial dermatosis in 2.51% cases. The pigmentary disorders occurred mostly in 24.7% followed by acne group and seborrheic dermatitis (19.5%). The first three facial dermatosis of women were exogenous ochronosis, seborrheic dermatitis and lichen planus respectively 16.7%, 10.7% and 10%. Conclusion: Pigmentary disorders due to depigmentation practices are predominant. Ochronosis exogenous, seborrheic dermatitis and acne are the most frequent.

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Dermatosis papulosa nigra in Dakar, Senegal

Cited by 21 publications

References 8 publications

Acquired hyperpigmentations

Acquired hyperpigmentations

Electrosurgery in Dermatosis papulosa nigra: An effective, well-tolerated but less documented tool

Clinical and Epidemiological Aspect of Black African Adult Women With Facial Dermatosis

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