Clinical Characteristics of Idiopathic Epidermoid and Dermoid Cysts of the Ear
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Background and Objectives: Epidermoid and dermoid cysts are benign cystic lesions, linedby ectodermal squamous epithelium. They are not common in the head and neck areas,which constitute ~7% of all cases of epidermoid and dermoid cysts. The aim of this studywas to investigate the clinical characteristics of epidermoid and dermoid cysts that developedaround the ear. Subjects and Methods: The clinical records were retrospectively reviewedfor patients confirmed histologically as idiopathic epidermoid and dermoid cysts ofthe ear from January 2011 to December 2015. Results: Total 15 cases consisted of 14 epidermoidcysts and only 1 dermoid cyst. There were 11 males and 4 females (mean age of37.8±16.8 years old). Right side was 7 cases and left was 8. The cyst was located at the lobulein 4 cases, at the ear canal in 4 cases, at the preauricular area in 4 cases, and at the postauriculararea in 3 cases. In cases of epidermoid cysts, there was no significant difference inage, sex, and size according to the location. Patients with cysts on helix were younger thanothers. Conclusions: This study demonstrated that most cutaneous cysts developing aroundthe ear were epidermoid cysts and there was no site preference for occurrence of epidermoidcysts.
Abstract
Background and Objectives: Epidermoid and dermoid cysts are benign cystic lesions, linedby ectodermal squamous epithelium. They are not common in the head and neck areas,which constitute ~7% of all cases of epidermoid and dermoid cysts. The aim of this studywas to investigate the clinical characteristics of epidermoid and dermoid cysts that developedaround the ear. Subjects and Methods: The clinical records were retrospectively reviewedfor patients confirmed histologically as idiopathic epidermoid and dermoid cysts ofthe ear from January 2011 to December 2015. Results: Total 15 cases consisted of 14 epidermoidcysts and only 1 dermoid cyst. There were 11 males and 4 females (mean age of37.8±16.8 years old). Right side was 7 cases and left was 8. The cyst was located at the lobulein 4 cases, at the ear canal in 4 cases, at the preauricular area in 4 cases, and at the postauriculararea in 3 cases. In cases of epidermoid cysts, there was no significant difference inage, sex, and size according to the location. Patients with cysts on helix were younger thanothers. Conclusions: This study demonstrated that most cutaneous cysts developing aroundthe ear were epidermoid cysts and there was no site preference for occurrence of epidermoidcysts.
참고문헌 (7)
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