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J Korean Surg Soc. 2010 Apr;78(4):238-241. English. Original Article. https://doi.org/10.4174/jkss.2010.78.4.238
Lee YS , Roh TS , Hong SW , Chang HS , Choi SH , Park CS .
Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. medilys@yuhs.ac
Department of Plastic and Reconstructive Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
Department of Pathology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
Abstract

PURPOSE: To describe the clinical presentations, management, and outcomes of patients with pilomatrixomas treated in a single institution, and to compare the clinicopathological features according to their location. METHODS: We reviewed the medical records of 57 patients treated between January 1986 and December 2007, retrospectively. RESULTS: The 57 patients had a total of 61 cases of pilomatrixomas. The mean age at diagnosis was 12.4 years, with most patients aged 0~10 years, followed by 10~20 years and 20~30 years. Mean tumor size was 1.46 cm, and most tumors were less than 2.0 cm in diameter. Forty-two tumors (68.9%) on the head and the neck were classified as Group I, and 19 tumors (31.1%) on the body were classified as Group II. The mean age at diagnosis was 9.4 years in Group I, and 19.8 years in Group II with significant statistical difference (P=0.009). The mean duration of symptoms was 26.4 months in Group I, and 7.2 months in Group II (P=0.001). All patients were treated surgically, and two patients relapsed (5 months and 3 years later). CONCLUSION: Pilomatrixoma is an uncommon benign skin tumor arising from hair follicle matrix cells. Diagnosis is usually easy based on clinical findings, and preoperative diagnosis may be improved with increased awareness of pilomatrixoma. Complete surgical excision is the treatment of choice, and recurrence after complete excision is rare.

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