Akudu Lotanna Somtoo, Ukoha Ukoha Ukoha, Ekezie Jervas, Ukoha Chinwe Clarice
Department of Anatomy, College of Health Sciences, Nnamdi Azikiwe University , Nnewi, Anambra State , Nigeria.
Department of Anatomy, School of Basic Medical Sciences Federal University of Technology , Owerri , Nigeria.
J Ultrason. 2018;18(75):290-295. doi: 10.15557/JoU.2018.0042.
Ultrasound is the most reliable imaging modality for thyroid evaluation due to the limitations in the clinical examination of this gland. Thyroid gland developmental anomalies are rare. Most of its variations are due to the persistence of the thyroglossal duct and the absence of the isthmus. The aim of this study was to determine the incidence of pyramidal lobe and agenesis of the thyroid isthmus in Nnewi population using ultrasound. A total of 321 subjects resident in Nnewi, including 167 males and 154 females, were randomized. A written consent was obtained from all patients. The subjects were aged between 18 and 35 years. This was a prospective cross-sectional study. Thyroid glands were scanned using a 2-dimensional ultrasound machine with a 7.5 MHz transducer; model Siemens Sonoline Prima which was made in Japan for Siemens Medical System Incorporated, ultrasound Group, Issaquah, WA, 98029-7002, USA. The study revealed no incidence of pyramidal lobe and agenesis of the thyroid isthmus in the study population. This study has clearly demonstrated no incidence of pyramidal lobe and agenesis of the thyroid isthmus in subjects resident in Nnewi, Nigeria. Ultrasound is the most reliable imaging modality for thyroid evaluation due to the limitations in the clinical examination of this gland. Thyroid gland developmental anomalies are rare. Most of its variations are due to the persistence of the thyroglossal duct and the absence of the isthmus. The aim of this study was to determine the incidence of pyramidal lobe and agenesis of the thyroid isthmus in Nnewi population using ultrasound. A total of 321 subjects resident in Nnewi, including 167 males and 154 females, were randomized. A written consent was obtained from all patients. The subjects were aged between 18 and 35 years. This was a prospective cross-sectional study. Thyroid glands were scanned using a 2-dimensional ultrasound machine with a 7.5 MHz transducer; model Siemens Sonoline Prima which was made in Japan for Siemens Medical System Incorporated, ultrasound Group, Issaquah, WA, 98029-7002, USA. The study revealed no incidence of pyramidal lobe and agenesis of the thyroid isthmus in the study population. This study has clearly demonstrated no incidence of pyramidal lobe and agenesis of the thyroid isthmus in subjects resident in Nnewi, Nigeria.
由于甲状腺临床检查存在局限性，超声是评估甲状腺最可靠的成像方式。甲状腺发育异常较为罕见。其大多数变异是由于甲状舌管持续存在和峡部缺如。本研究的目的是利用超声确定纽维人群中甲状腺锥体叶和峡部发育不全的发生率。共有321名居住在纽维的受试者被随机分组，其中包括167名男性和154名女性。所有患者均签署了书面知情同意书。受试者年龄在18至35岁之间。这是一项前瞻性横断面研究。使用配备7.5 MHz探头的二维超声仪对甲状腺进行扫描；型号为西门子Sonoline Prima，由日本为美国华盛顿州伊萨夸市98029 - 7002的西门子医疗系统公司超声集团制造。研究显示，研究人群中未出现甲状腺锥体叶和峡部发育不全的情况。本研究清楚地表明，在尼日利亚纽维居住的受试者中，未出现甲状腺锥体叶和峡部发育不全的情况。由于甲状腺临床检查存在局限性，超声是评估甲状腺最可靠的成像方式。甲状腺发育异常较为罕见。其大多数变异是由于甲状舌管持续存在和峡部缺如。本研究的目的是利用超声确定纽维人群中甲状腺锥体叶和峡部发育不全的发生率。共有321名居住在纽维的受试者被随机分组，其中包括167名男性和154名女性。所有患者均签署了书面知情同意书。受试者年龄在18至35岁之间。这是一项前瞻性横断面研究。使用配备7.5 MHz探头的二维超声仪对甲状腺进行扫描；型号为西门子Sonoline Prima，由日本为美国华盛顿州伊萨夸市98029 - 7002的西门子医疗系统公司超声集团制造。研究显示，研究人群中未出现甲状腺锥体叶和峡部发育不全的情况。本研究清楚地表明，在尼日利亚纽维居住的受试者中，未出现甲状腺锥体叶和峡部发育不全的情况。
