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임성주(Sung-ju Lim),임치영(Chi Young Lim),이잔디(Jandee Lee),윤지섭(Ji Sup Yun),남기현(Kee-Hyun Nam),장항석(Hang-Seok Chang),정웅윤(Woong Youn Chun),홍순원(Soon Won Hong),박정수(Cheong Soo Park) 대한두경부종양학회 2006 대한두경부 종양학회지 Vol.22 No.2
Pilomatrixoma is an uncommon tumor arising from hair follicles. Commonly occur in children and most frequently in the head and neck region. It can be mistaken for parotid gland tumor, dermoid cyst, or epider-moid cyst, especially when large lesions develop over the periauricular area, difficulty discerning them from lesion developing within the superficial lobe of the parotid gland may occur. We experienced two cases of pilomatrixomas mimicking parotid gland tumor. Although their histologic appearance is characteristic, they may be clinically misdiagnosed. However, combining clinical information with the distinct histologic features should lead to the correct diagnosis.
수술 전 이하선 종괴의 위치파악에 이용하는 해부학적 경계표의 유용도
임치영(Chi Young Lim),김국진(Kook Jin Kim),임성주(Sung Ju Lim),이잔디(Jan dee Lee),남기현(Kee Hyun Nam),장항석(Hang Seok Chang),정웅윤(Woong Youn Chung),최홍식(Hong Shik Choi),박정수(Cheong Soo Park) 대한두경부종양학회 2006 대한두경부 종양학회지 Vol.22 No.1
Background: The location of parotid gland tumors can influence the duration and the difficulty of the operation. If the information about tumor location was available preoperatively, it would allow accurate operative planning and counseling of patients in terms of the length of the operation and the potential morbidity. Methods: This study was based on a retrospective review of 100 patients with parotid gland tumors underwent parotidectomy from January 2000 to October 2005 at Yong-Dong Severance Hospital. Based on computed tomographic(CT) scan findings, 4 landmarks such as facial nerve(FN) line, Utrecht(U) line, Conn's are(CA), and retromandibular vein (RV) were drawn on the scans in same plane. The location of tumors were determined by the landmarks and confirmed by the operative findings. The accuracy of each landmarks was evaluated. To find out the accuracies according to tumor size, the tumors were divided into 2 groups; less than 2 cm and larger than 2 cm in diameter. Results: U line was the most accurate(94%), sensitive(89.3%) and specific(97.7%) in predicting tumor location of the parotid gland. However, in small tumors less than 2cm, FN line (p=0.022) and RV criteria (p=0.028) were more reliable in accuracy. Conclusion: CA, FN line, U line, and RV are all useful landmarks in preoperative prediction for the location of parotid gland tumors. However, U line was the most accurate, but we must consider that proper landmark should be used in prediction according to the size of tumor because the accuracy of landmark may change.