Ultrasound findings in 156 children with 169 pilomatricomas

Pelizzari, Mario; Giovo, María E; Innocente, Natalia; Perez, Ricardo Cruz

doi:10.1007/s00247-021-05124-6

Cited by 9 publications

(19 citation statements)

References 29 publications

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“…In this study, pilomatricomas were classified into five types, and vascularity was assessed as an important feature detected by CDFI. Vascularity was present in 84.2% of the pilomatricomas in our study, compared to 47.3% (80/169) in the study by Pelizzari et al., 5 50% (22/44) in the study by Choo et al., 6 and 4/32 in the study by Solivetti et al 4 . However, the latter two studies did not include vascularity as a criterion for classification of pilomatricomas 4,6 …”

Section: Discussioncontrasting

confidence: 59%

“…Of the hypoechoic rim, we used the criterion from the Type 2 in the study by Pelizzari et al 5 . Only five pilomatricomas were found to have a hypoechoic rim (7.9%, 5/63), while there were nine epidermoid cysts with a hypoechoic rim (11.8%, 9/76) in our study, as shown in Figures 4 and 7.…”

Section: Discussionmentioning

confidence: 73%

“…Of the hypoechoic rim, we used the criterion from the Type 2 in the study by Pelizzari et al 5 Only five pilomatricomas were found to have a hypoechoic rim (7.9%, 5/63), while there were nine epidermoid cysts with a hypoechoic rim (11.8%, 9/76) in our study, as shown in Figures 4 and 7. Therefore, the presence of a hypoechoic rim is not a unique diagnostic factor for pilomatricoma, which differs from the findings of Choo et al 6 and Wei et al 21 The reason for this discrepancy may be the variation in inter-reader agreement for identifying a hypoechoic rim.…”

Section: Discussionmentioning

confidence: 80%

“…Further evaluation is often conducted using high‐frequency (7 to 15 MHz) ultrasound (HFUS) associated with color Doppler flow imaging (CDFI) 1,4 . On color Doppler ultrasound, pilomatricoma exhibits diverse echogenic patterns 4–7 . While pilomatricomas with typical features evaluated using HFUS and CDFI demonstrate excellent diagnostic performance, misdiagnosis frequently occurs for pilomatricomas with atypical sonographic features.…”

Section: Introductionmentioning

confidence: 99%

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Integrating vascularity into the pattern classification of pilomatricomas on ultrasound provides a more competent approach for discriminative evaluation

Zhu,

2024

Skin Research and Technology

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BackgroundPilomatricoma has various manifestations on color Doppler ultrasound, and a differential diagnosis is challenging. The objective of this study was to investigate which characteristics of skin lesions on color Doppler ultrasound are effective in distinguishing pilomatricoma from epidermoid cyst and dermatofibrosarcoma protuberans.Materials and methodsRecords of patients with pilomatricomas (n = 63), epidermoid cysts (n = 76), and dermatofibrosarcoma protuberans (n = 19) who underwent color Doppler ultrasound evaluation and surgical excision were reviewed. The anatomical distribution and color Doppler ultrasound characteristics of these lesions were analyzed. The 63 pilomatricomas were categorized into five types based on their color Doppler ultrasound characteristics, and the roles of these five types in the differential diagnosis of the aforementioned diseases were studied.ResultsPilomatricomas, epidermoid cysts, and dermatofibrosarcoma protuberans exhibited some similar characteristics. Dominantly markedly hyperechoic or hyperechoic appearance, posterior acoustic shadowing, and the presence of vascularity were the major characteristics of pilomatricomas. The pilomatricomas could be categorized into five types, with type II having a diagnostic performance of sensitivity of 65.08%, specificity of 98.95%, area under the receiver operating characteristic curve (AUC) of 0.743, positive predictive value of 97.62%, and negative predictive value of 81.03% for the diagnosis of the aforementioned skin diseases.ConclusionA combination of dominantly markedly hyperechoic or hyperechoic appearance, posterior acoustic shadowing, and the presence of vascularity exhibits higher diagnostic performance for the differential diagnosis of pilomatricomas, epidermoid cysts, and dermatofibrosarcoma protuberans.

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Section: Discussioncontrasting

confidence: 59%

Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

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Integrating vascularity into the pattern classification of pilomatricomas on ultrasound provides a more competent approach for discriminative evaluation

Zhu,

2024

Skin Research and Technology

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“…On color Doppler, the vascularity is also variable, and they may show no vascularity, peripheral vascularity, and both internal and peripheral vascularity with low flow vessels. 1,4,[36][37][38][41][42][43][44][45][46][47][48] Among the variants are the hypervascular 49 and the cystic (synonyms: bullous, pseudobullous, anetodermic) types of pilomatrixomas. 37,38,49,50 The hypervascular pilomatrixomas show prominent internal vascularity, and clinically can resemble hemangiomas.…”

Section: Pilomatrixomasmentioning

confidence: 99%

Top Advances in Dermatologic Ultrasound

Wortsman

2022

J of Ultrasound Medicine

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The advances in dermatologic ultrasound have been significantly influenced by the development of high‐ and ultrahigh‐frequency probes, the provision of guidelines for performing the examinations, and a growing number of publications in the field. This review analyzes the most significant contributions that have impacted the daily practice of dermatologists in recent years. This includes the advances in anatomical detection and the patterns of benign and malignant cutaneous tumors, inflammatory dermatologic conditions, vascular anomalies, nail abnormalities, and aesthetic procedures. The knowledge of these advances is a primer for the operators of these examinations.

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