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KMID : 1033720200210050288
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Archives of Craniofacial Surgery
2020 Volume.21 No. 5 p.288 ~ p.293
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Clinical analysis and review of literature on pilomatrixoma in pediatric patients
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Hu Ju-Long
Yoo Hyo-Kyung
Kwon Sung-Tack
Kim Suk-Wha
Chung Jee-Hyeok
Kim Hyeon-Woo
Kim Jin-Hyun
Yu Na-Hee
Kim Byung-Jun
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Abstract
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Background: Pilomatrixoma is a benign tumor that originates from the hair follicle matrix. It usually presents as a hard, slow growing, solitary mass that can be easily misdiagnosed as other skin masses. The aim of this study was to clinically analyze a case series of pilomatrixoma in pediatric patients from Korea.
Methods: A total of 165 pediatric patients from 2011 to 2018 with a histological diagnosis of pilomatrixoma were included. A retrospective review was performed using the electronic medical records, including patient demographics, number and location of the mass, clinical and imaging presentation, and postoperative outcomes.
Results: There were 61 male and 104 female patients with 152 solitary and 13 multiple pilomatrixomas. Among solitary pilomatrixomas, the lesion commonly occurred in the head and neck (84.2%), followed by upper limbs (11.2%), lower limbs (3.3%), and trunk (1.3%). The pilomatrixoma lesion presented as the following types based on our clinical classification: mass (56.02%), pigmentation (25.31%), mixed (12.65%), ulceration (4.82%), and keloid-like (1.2%). Ultrasonography showed a high positive predictive value (95.56%). There were no specific complications observed except for two cases of recurrence.
Conclusion: Pilomatrixoma has various clinical feature presentations and commonly occurs in the head and neck. Ultrasonography is a helpful diagnostic tool. Surgical removal of the lesion is the main treatment method with a low recurrence rate.
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KEYWORD
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Benign neoplasms, Pediatrics, Pilomatrixoma
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