Endocrinol Metab > Volume 22(2); 2007 > Article
Journal of Korean Endocrine Society 2007;22(2):112-117.
DOI: https://doi.org/10.3803/jkes.2007.22.2.112    Published online April 1, 2007.
Prevalence of Thyroid Nodules Detected by Ultrasonography in Adult Men Attending Health Check-ups.
Jung Hyun Kim, Sang Jun Park, Sang Eok Kim, Kwang Hee Lee, Il Kwon Cho, Sun Ik Jang, Jin Kwan Lee, Keum Soo Seo, Hyuck Po Kwon, Sung Chang Chung
1Department of Internal Medicine, Dongkang Hospital, Korea.
2Department of Radiology, Dongkang Hospital, Korea.
Thyroid nodules are a common disease in clinical practice. The prevalence of thyroid nodules has recently been increased by according to the development of thyroid ultrasonography. Thyroid nodules are more commonly found in women, but the potential for malignant nodules is much higher in men. So, we aimed to focus on the prevalence of thyroid nodules in the adult male population. METHODS: We studied men over the age of 30 who visited our health care center for routine health check-ups from January, 2005 to December, 2005. After excluding the patients with previous thyroid disorders, 1081 men were selected to undergo thyroid ultrasonography for detecting the presence of thyroid nodules. If nodules were found, then their size and numbers were recorded. These data were then correlated with the age of the patients. If needed, ultrasound-guided fine needle aspiration was performed. RESULTS: Among the 1,081 subjects, thyroid nodules were detected in 152 (14.1%) with its prevalence increasing with the increasing age of the patients (age 30 to 49: 12.3%, over 50: 17.2%, P = 0.026). Among these study subjects, nodules larger than 5 mm in size were detected in 99 patients and fine needle aspirations were performed on 53 of these patients. Six patients were diagnosed with papillary carcinoma. CONCLUSION: The prevalence of thyroid nodules in the male population was 14.1%, with an increasing prevalence in the over 50 age group.
Key Words: Men, Prevalence, Thyroid nodule, Ultrasonography

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