Hyperkeratosis of the Larynx

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J Korean Soc Laryngol Phoniatr Logop > Volume 4(1); 1991 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 1991;4(1): 33-41.

후두각화증에 대한 임상적 고찰

김광문¹, 김기령¹, 홍원표¹, 최은창¹, 장미숙¹, 정우희²

¹연세대학교 의과대학 이비인후과학교실²연세대학교 의과대학 병리학교실

Hyperkeratosis of the Larynx

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ABSTRACT

The clinical entity referred to as epithelial hyperplasia has been called by various terms : keratosis, hyperkeratosis, pachydermia, acanthosis, leukoplakia, hyperkeratotic laryngitis. The metaplasia and keratinization of the layngeal mucosa are associated with the subsequent appearance of invasive epidermoid carcinoma. Therefore. frequent and prolonged periods of observation and histologic study on keratosis of the larynx are essential. A retrospective review of 18 patients with laryngeal hyperkeratosis seen at Department of Otolaryngology Yondong Severance Hospital during the 7 years period was completed. The results are summarized as follows : 1) The incidence was much higher in males(22 patients) than in females(4 patients) 2) The peak age of male was 4th decades and the peak age of female was 4th. 5th decades. 3) The chief complaint of the patients was hoarseness in all cases. 4) The average duration of symptoms was less than 24 months for 19 cases(73.1%). 5) 17 patients(65.4%) was smokers and duration of smoking was 10~20 years for 10 cases(38.8%). 6) On histological examination. the lesions were classified into three types: simple hyperplasia(61.5%). dysplasia(26.9%) and carcinoma in situ(2 cases). 7) The recurrence rates was 9 cases(34.6%) and transformation rate into invasive carcinoma was 1 case(3.8%).