Dermoscopic Findings of Pilomatricomas

Zaballos, Pedro; Llambrich, Álex; Puig, Susana; Malvehy, Josep

doi:10.1159/000148248

Cited by 52 publications

(56 citation statements)

References 38 publications

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“…At the end of these processes, the dermis is filled with lymphatic fluid [1]. The common dermatoscopic findings of bullous pilomatricomas are reddish homogenous areas, irregular white structures and hairpin-like atypical vessels [7]. We also obtained similar findings with dermatoscopy.…”

Section: Discussionsupporting

confidence: 70%

Bulla-like Malherbe’s Calcyfying Epithelioma Induced by Deltoid Muscle Rupture

2018

ARC Journal of Dermatology

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Section: Discussionsupporting

confidence: 70%

Bulla-like Malherbe’s Calcyfying Epithelioma Induced by Deltoid Muscle Rupture

2018

ARC Journal of Dermatology

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“…Moreover, 73% of these lesions (11/15) showed vascular structures (5 cases with polymorphous atypical vessels, 4 cases with arborising telangiectasias and 2 with linear irregular vessels). These patterns are not specific of hidradenomas and they have been published in association with other adnexal tumours, such as trichoblastomas [6], hidrocystomas [5], pilomatricomas [7] and poromas [8], basal cell carcinomas [9,10] and some melanocytic lesions, such as Reed/Spitz nevi, blue nevi and melanoma [11]. In fact, most of these tumours were included in the differential diagnosis of our pigmented cases which were diagnosed by experienced dermatologists in dermoscopy (basal cell carcinoma in 60% of cases, 9/15, and melanoma in 27.7%, 4/15).…”

Section: Discussionmentioning

confidence: 99%

Dermoscopy of Nodular Hidradenoma, a Great Masquerader: A Morphological Study of 28 Cases

Serrano

Lallas²,

Pozo

et al. 2015

Dermatology

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Background: Nodular hidradenoma is an uncommon, benign, adnexal neoplasm of apocrine origin which is a clinical simulator of other tumours. Objective: The aim of this study was to evaluate the morphological findings of a large series of nodular hidradenomas under dermoscopic observation. Methods: Dermoscopic examination of 28 cases of nodular hidradenomas was performed to evaluate specific dermoscopic criteria and patterns. Results: The most frequently occurring dermoscopic features were: (1) in 96.4% of cases, a homogeneous area that covered the lesion partially or totally, the colour of which was pinkish in 46.4% of cases, bluish in 28.6%, red-blue in 14.3%, and brownish in 10.7%; (2) white structures were found in 89.3% of cases; (3) in 82.1% of cases, vascular structures were also observed, especially arborising telangiectasias (39.3%) and polymorphous atypical vessels (28.6%). Conclusion: Nodular hidradenomas represent a dermoscopic pitfall, being difficult to differentiate clinically and dermoscopically from basal cell carcinomas and melanomas.

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“…Previous studies indicate that the diagnostic accuracy rate in the preoperative diagnosis of PM ranges from 0 to 30%. 4 In general, patients present a solitary nodule growing slowly over several months or years. There may be episodes of inflammation or ulceration.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3] PM is the most common hair-follicle tumor and it accounts for one of every 500 specimens submitted by dermatologists. 4 Clinically, the lesion is a benign cutaneous tumor usually characterized by a solitary asymptomatic, firm, and skin-colored faint blue/red nodule in the deep dermis and subcutaneous tissue, with an average size of 0.5 to 3.0 cm. The lesions larger than 5.0 cm are defined as giant pilomatrixomas.…”

Section: Introductionmentioning

confidence: 99%

An unusual presentation of giant pilomatrixoma in an adult patient

Souto

Matsushita²,

Matsushita³

et al. 2013

J Dermatol Case Rep

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Background: Pilomatrixoma (OMIM ID #132600) is a benign cutaneous tumor originating from the pilosebaceous follicle and characterized by the presence of subcutaneous nodules of up to 3.0 cm in diameter, usually on the head, neck and upper extremities. It is most common in the first two decades of life and after the age of 60.Main observations: An adult female patient was evaluated, presenting a solid tumoral lesion with erythematous surface and purplish tone, with approximately 7.5 x 5.0 cm in size, in the interscapulovertebral region. It was thought to be an epidermoid cyst, sarcoma, calcified hemangioma, giant dermatofibroma, or nodular basal cell carcinoma. The resection of the lesion was carried out and, at the histological examination, specific details were observed that led to the diagnosis of pilomatrixoma. Conclusion:Pilomatrixoma should be suspected in the differential diagnosis of giant adnexal tumors. (J Dermatol Case Rep. 2013; 7(2): 56-59) An unusual presentation of giant pilomatrixoma in an adult patient IntroductionPilomatrixoma (PM; OMIM ID #132600) was first described in 1880 by Malherbe and Chenatais as a "calcified epithelioma of Malherbe" originated from sebaceous glands. In 1961, Forbis and Helwig demonstrated that the tumor originated from the hair matrix; therefore, the name pilomatrixoma. 1-3 PM is the most common hair-follicle tumor and it accounts for one of every 500 specimens submitted by dermatologists. 4 Clinically, the lesion is a benign cutaneous tumor usually characterized by a solitary asymptomatic, firm, and skin-colored faint blue/red nodule in the deep dermis and subcutaneous tissue, with an average size of 0.5 to 3.0 cm. The lesions larger than 5.0 cm are defined as giant pilomatrixomas. Pain and tenderness may be associated symptoms. 3,5 The tumor is generally observed on the head, neck and upper extremities. 6 It is a common skin neoplasm in the pediatric population, but it may be found in all age groups with bimodal peaks under the age of 30 and in the sixth/seventh decades of life. 5,6 Uncommon clinical-pathological variants of PM have been reported, such as bullous like, anetodermic, exophytic, perforating/ulcerated and lymphagiectatic. Multiple and familial cases have been described in association with myotonic dystrophy, Turner's syndrome, Gardner's syndrome, xeroderma pigmentosum, basal cell nevus syndrome and Sotos syndrome. 6,7 The present paper reports an unusual and uncommon case of pilomatrixoma on the back of an adult female patient. Case ReportA 54-year-old female patient sought the medical specialties outpatient service at School of Medical Sciences at Universidade de Marília (UNIMAR) complaining about a back injury three years ago, with progressive growth and sporadic local pain. The patient had undergone a surgery for the removal of the lesion in another hospital two and a half years before, but there was local recurrence 3 months after surgery. Krausen et al. 9 described the first case of giant PM (GPM), few similar lesions were described 5 a...

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Dermoscopic Findings of Pilomatricomas

Cited by 52 publications

References 38 publications

Bulla-like Malherbe’s Calcyfying Epithelioma Induced by Deltoid Muscle Rupture

Bulla-like Malherbe’s Calcyfying Epithelioma Induced by Deltoid Muscle Rupture

Dermoscopy of Nodular Hidradenoma, a Great Masquerader: A Morphological Study of 28 Cases

An unusual presentation of giant pilomatrixoma in an adult patient

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