Pigmented hairy epidermal nevus (Becker)

Copeman, P.W.M.

doi:10.1001/archderm.92.3.249

Cited by 43 publications

(24 citation statements)

References 1 publication

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“…5 Some authors believed that this nevus predominantly involves the front of the chest or the scapular region, 41,42 but this review confirms that Becker's nevus may involve any area of the body. It can be categorized as a particular type of organoid epidermal nevus and, therefore, the disorder most likely reflects mosaicism.…”

Section: Becker's Nevusmentioning

confidence: 55%

Becker's nevus syndrome revisited

Danarti

König

Salhi

et al. 2004

Journal of the American Academy of Dermatology

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Section: Becker's Nevusmentioning

confidence: 55%

Becker's nevus syndrome revisited

Danarti

König

Salhi

et al. 2004

Journal of the American Academy of Dermatology

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“…Becker’s naevus occurs in association with underlying developmental and structural abnormalities of bone and soft tissue [7, 8, 9, 10, 11] as well as with accessory scrotum [12] and congenital adrenal hyperplasia [13]. Various conditions may also develop within Becker’s naevus including smooth muscle hamartoma [14], connective tissue naevus [15], solitary plexiform neurofibroma [16], acneiform papules [17], perforating granulomatous folliculitis [18] and pityriasis versicolor [19].…”

Section: Discussionmentioning

confidence: 99%

Polythelia within Becker’s Naevus

Urbani

Betti

1998

Dermatology

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We report a case of accessory mammary tissue of type 2a (or polythelia) entirely localized within a Becker’s naevus of mixed type in a 32-year-old Caucasian woman. Polythelia was congenital in origin while Becker’s naevus appeared during puberty. Renal ultrasonographic studies, laboratory examinations and other instrumental investigations were either normal or negative. Although the association of accessory mammary tissue with Becker’s naevus has previously been reported – also in the form of mammorenal and acromammorenal syndromes – this is the first case characterized by an anatomic overlap between the two anomalies. It may be the expression of a common disturbance acting early in embryogenesis in the specific developmental fields involved.

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“…Becker nevus (BN) or Becker’s melanosis, first reported by Becker [23] as ‘acquired localized melanosis and hypertrichosis’, and subsequently named ‘pigmented hairy epidermal nevus’ [24], is considered to be a specific form of organoid epithelial nevus [25]. It is identified clinically by the development of a hyperpigmented, irregular macule or patch with an irregular outline, generally with overhanging hypertrichosis.…”

Section: Introductionmentioning

confidence: 99%

“…It is identified clinically by the development of a hyperpigmented, irregular macule or patch with an irregular outline, generally with overhanging hypertrichosis. Histopathological changes include acanthosis, papillomatosis, increased basal layer pigmentation, dermal thickening and absence of nevus cells in the dermis [24, 25]. Hyperplasia of hair follicles and sebaceous glands can also occur.…”

Section: Introductionmentioning

confidence: 99%

“…There may be smooth muscle hyperplasia, making differentiation from congenital smooth muscle hamartoma difficult [25, 26]. BN may be first noted in childhood, but it is usually discovered during adolescence [24, 27]. Therefore it is believed that BN is a late acquired condition, occurring about 5 times more often in males than in females [27, 28].…”

Section: Introductionmentioning

confidence: 99%

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Dermoscopic Features of Congenital Melanocytic Nevus and Becker Nevus in an Adult Male Population: An Analysis with a 10-Fold Magnification

et al. 2006

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Background: Dermoscopic features of congenital melanocytic nevi (CMN) have been mostly assessed by high-resolution videodermoscopy. However, optical dermoscopy with the 10-fold magnification is largely available. In some instances, the differential diagnosis between large CMN and Becker nevus (BN) may be difficult. Objective: The aims of this work were: (1) to assess by dermoscopy with the 10-fold magnification the morphological features which have been previously suggested as useful for the identification of CMN in high-resolution videodermoscopy; (2) to search and point out the dermoscopic features of BN; (3) to explore dermoscopic differences between CMN and BN. Methods: The subjects were observed among about 23,000 consecutive young men assessed at the Draft Council’s Medical Unit of the Italian Navy in Taranto for compulsory recruitment and referred to the Department of Dermatology of the Italian Navy Hospital for dermatological examination. Lesions were examined by the same observer using a dermatoscope with a 10-fold magnification, and both the dermoscopic criteria stated by the international Consensus Net Meeting on Dermoscopy and dermoscopic features previously suggested as useful for the identification of CMN by videodermoscopy were recorded in a predisposed patient’s card. Results: There were 127 male subjects, median age 19 years, with 127 CMN, measuring ≧1.5 to ≤19.9 cm in 78% and ≧20 cm in 22% of cases, and 64 male subjects, median age 19 years, with 64 BN. In the sample of medium-sized and large CMN, dermoscopic features previously identified as characteristic of congenital lesions (i.e. target network, focal thickening of network lines, target globules, skin furrow hypopigmentation, focal hypopigmentation, hair follicles, perifollicular hypopigmentation, vessels and target vessels) were observed in sufficiently high rates. In the BN group, network, focal hypopigmentation, skin furrow hypopigmentation, hair follicles, perifollicular hypopigmentation and vessels were the main dermoscopic features. Focal thickening of network lines, globules, target globules, homogeneous diffuse pigmentation, hyperpigmented areas, blotches and target vessels were more frequently observed in CMN than in BN. Conclusions: (1) The same dermoscopic features observed in small and medium-sized CMN by videodermoscopy with high magnifications are also detectable in medium-sized and large CMN, employing the dermoscopy with the 10-fold magnification. (2) Network, focal, skin furrow and perifollicular hypopigmentation, hair follicles and vessels could be considered as peculiar dermoscopic features of BN. (3) Major differences in the frequency of dermoscopic characteristics were detected between CMN and BN, and dermoscopy seems to provide some diagnostic aid in differentiating CMN from BN in equivocal cases.

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Pigmented hairy epidermal nevus (Becker)

Cited by 43 publications

References 1 publication

Becker's nevus syndrome revisited

Becker's nevus syndrome revisited

Polythelia within Becker’s Naevus

Dermoscopic Features of Congenital Melanocytic Nevus and Becker Nevus in an Adult Male Population: An Analysis with a 10-Fold Magnification

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