Dermoscopic features of pilar leiomyomas

Behera, Biswanath; Sakkaravarthi, Vinupriya; Kumari, Rashmi; Thappa, Devinder Mohan; Gochhait, Debasis; Srinivas, B H; Toi, Pampa Ch

doi:10.1111/bjd.16378

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…This structure was found in 96.5% of our PL and was also the most common feature associated with PL in the literature. [4][5][6][7][8] The histopathological correlation of the delicate pigment network was the presence of a reactive epidermal basal hyperpigmentation; the multiple hypopigmented areas, observed in 49.1% of PL, could correspond histologically to follicular openings or lack of epidermal hyperpigmentation, as we could see in some of our cases. Whitish structures, which should be lighter than normal surrounding skin, were found in 7% of PL and their histopathologic correlation could be the presence of increased or altered collagen in the superficial dermis due to the presence of proliferating smooth muscle cells intermingled with various amounts of collagen bundles, as observed in most of our cases.…”

Section: Discussionsupporting

confidence: 70%

“…The delicate pigment network is defined as the presence of thin lines of light brown colour and regular meshes, regularly distributed and gradually faded into the surrounding skin. This structure was found in 96.5% of our PL and was also the most common feature associated with PL in the literature . The histopathological correlation of the delicate pigment network was the presence of a reactive epidermal basal hyperpigmentation; the multiple hypopigmented areas, observed in 49.1% of PL, could correspond histologically to follicular openings or lack of epidermal hyperpigmentation, as we could see in some of our cases.…”

Section: Discussionsupporting

confidence: 55%

“…Vascular structures, mainly unfocused arborizing telangiectasias, were observed in 15.8% of PL and were not representative for most PL. Other features, such as irregular crypts, fingerprint‐like structures or a cerebriform pattern, found by Behera et al ., were absent in our cases. The clinical differential diagnosis of PL includes angiolipomas, glomus tumour, eccrine spiradenomas and other adnexal tumours, lipomas, neurilemmomas, neurofibromas, dermal nevi and dermatofibromas .…”

Section: Discussionmentioning

confidence: 99%

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Dermoscopy of cutaneous smooth muscle neoplasms: a morphological study of 136 cases

Zaballos

Pozo

Argenziano

et al. 2019

Acad Dermatol Venereol

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Background A variety of cutaneous smooth muscle neoplasms may arise in the skin and are frequently unrecognized by clinicians. There is sparse data relating to the dermoscopy of piloleiomyomas (PL), and nothing has been published about the dermoscopy of angioleiomyomas (AL) and leiomyosarcomas (LS). Objectives To evaluate the morphological findings of a large series of cutaneous PL, AL and LS under dermoscopic observation, comparing these findings among them.Methods Digital dermoscopic images of 136 histopathologically confirmed cases of cutaneous smooth muscle neoplasms (114 PL, 13 AL and 9 LS) collected from 10 Hospitals in Spain, Austria and Italy were evaluated for the presence of dermoscopic structures and patterns. ResultsThe pattern composed of a symmetric, total delicate pigment network with the variable presence of multiple hypopigmented areas in a painful lesion is the most common dermoscopic pattern associated with PL. This pattern was found in 69.3% of PL and in no cases of AL and LS. The most common and characteristic pattern associated with AL was the one composed of symmetric pink-reddish tumour with vessels, white structures and the absence of ulceration, which was found in 46.2% of AL, but also in 3.5% of PL, and in 22.2% of LS. Finally, the most common pattern associated with LS was the one composed of an asymmetric, multilobulated tumour with linear-irregular or polymorphic-atypical vessels and white structures, which was found in 44.4% of cases, but also in 0.9% of PL and in 15.4% of AL.Conclusion Dermoscopy is helpful in improving the diagnostic accuracy of PL. The dermoscopic patterns associated with AL and LS were more variable and less specific.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 99%

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Dermoscopy of cutaneous smooth muscle neoplasms: a morphological study of 136 cases

Zaballos

Pozo

Argenziano

et al. 2019

Acad Dermatol Venereol

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“…3). probably explains why the literature coverage of their clinicopathologic features is limited [4]. However, the use of dermoscopy could be a useful non-invasive diagnostic method, especially in case of the occurrence of a solitary lesion.…”

Section: Opis Przypadkumentioning

confidence: 99%

“…Mięśniaki gładkokomórkowe skóry występują rzadko, stanowią zaledwie ok. 5% wszystkich mięśniaków gładkokomórkowych. Prawdopodobnie z tego powodu w literaturze można znaleźć jedynie nieliczne prace opisujące cechy kliniczno-patologiczne tych nowotworów [4]. Pomocną nieinwazyjną metodą diagnostyczną -zwłaszcza u pacjentów, u których występują pojedyncze zmiany tego typu -może być dermoskopia.…”

Section: Omówienieunclassified

Dermoscopy of piloleiomyoma

Pogorzelska-Dyrbuś¹,

Pająk²

2020

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Piloleiomyomas occur rarely and the literature regarding their dermoscopy is scarce. These tumours most commonly present as multiple nodules located on the trunk or the head. The diagnostic difficulties may be caused by their solitary appearance. Therefore, dermoscopy can serve as a non-invasive and accessible diagnostic modality to distinguish leiomyomas from other solitary tumours. This report presents the dermoscopy image of a piloleiomyoma developing on the trunk in a 35-year-old man. A yellowish homogenous background with the presence of delicate network and arborizing telangiectasias on the periphery were present, along with hypopigmented areas. The dermoscopy image of the lesion was characteristic for piloleiomyoma. Unusuall was the abundance of vessels, what is infrequent in this type of tumours. streszczenie Piloleiomyoma to rzadki nowotwór skóry. W literaturze jest niewiele pozycji opisujących obraz dermoskopowy tych nowotworów. Guzki typu piloleiomyoma najczęściej występują w formie mnogich ognisk umiejscowionych na tułowiu lub na głowie. Ich pojedyncze postaci mogą sprawiać trudności diagnostyczne. Nieinwazyjną i szeroko dostępną metodą diagnostyczną umożliwiającą różnicowanie piloleiomyoma od innych pojedynczych guzów jest dermoskopia. W artykule przedstawiono obraz dermoskopowy guza typu piloleiomyoma rozwijającego się na tułowiu u 35-letniego mężczyzny. W obrazie dermoskopowym zaobserwowano żółtawe, homogenne tło z obecnością delikatnej siatki barwnikowej i teleangiektazji na obrzeżach, a także obszary hipopigmentacji. Chociaż ogólny obraz dermoskopowy zmiany był charakterystyczny dla piloleiomyoma, obfitość naczyń jest rzadkością w tym typie guza.

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