Right dominance in the incidence of external auditory canal squamous cell carcinoma in the Japanese population: Does handedness affect carcinogenesis?
Right dominance in the incidence of external auditory canal squamous cell carcinoma in the Japanese population: Does handedness affect carcinogenesis?
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DOI：
10.1002/lio2.43
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发表时间：
2017-03
影响因子：
1.9
通讯作者：
Kishimoto S
中科院分区：
文献类型：
--
作者：
Tsunoda A;Sumi T;Terasaki O;Kishimoto S
探讨惯用手与外耳道鳞状细胞癌发病的关系。本研究入组了68例EACSCC病例，并检查了其患侧。还在34例EACSCC病例中调查了惯用手和掏耳习惯。根据自我分类判断利手，并调查利手与患侧之间的关系。52例发生在EACSCC患者的右侧，16例发生在左侧。EACSCC的偏侧发生率显示出统计学上显著的右侧优势。关于利手，29例为右利手，4例为左利手，1例为左右手。29例右利手病例中的27例和1例双臂肌病例右侧发生癌，而3例左利手病例左侧发生癌。也就是说，大多数情况下，患EACSCC的同一侧，他们的利手，这一趋势显示出统计学上的显着差异。大多数EACSCC患者在患侧出现瘙痒和习惯性掏耳。对EAC的机械刺激，如挖耳，可能会导致EACSCC。在日本，摘耳朵，也被称为“mimikaki”，是一种流行的习惯和独特的文化。因为掏耳朵需要精细的操作，这往往发生在同一侧的利手在日本人口。这是关于利手与肿瘤发生关系的首次报道。N/A.
To investigate the relationship between handedness and the incidence of squamous cell carcinoma in the external auditory canal (EACSCC). Sixty‐eight cases of EACSCC were enrolled in this study, and their affected side was checked. Handedness and ear‐picking habits were also investigated in 34 EACSCC cases. Handedness was judged based on self‐categorization, and the relationship between handedness and the affected side was investigated. Fifty‐two cases occurred on the right side, and 16 cases occurred on the left side of patients with EACSCC. The incidence of laterality in EACSCC showed a statistically significant right dominance. Concerning handedness, 29 cases were right‐handed, 4 cases were left‐handed, and 1 case was ambidextrous. Twenty‐seven out of the 29 right‐handed cases and 1 ambidextrous case suffered from carcinoma on the right side, whereas 3 left‐handed cases suffered from carcinoma on the left side. That is, most of the cases suffered from EACSCC on the same side as their handedness, and this tendency showed a statistically significant difference. Most of the patients with EACSCC experienced itching and habitual ear‐picking in the affected side. Mechanical stimulations to the EAC, such as ear picking, may plausibly cause EACSCC. In Japan, ear picking, also called “mimikaki,” is a popular habit and an established unique culture. Because ear picking requires delicate handling and manipulation, this tends to occur on the same side as the handedness in the Japanese population. This is the first report about the relationship between handedness and carcinogenesis. N/A.