Department of Radiology, Lagos State University Teaching Hospital, Lagos, Nigeria.
Department of Pathology, Lagos State University College of Medicine/ Lagos State University Teaching Hospital, Lagos, Nigeria.
Pan Afr Med J. 2021 Jul 29;39:220. doi: 10.11604/pamj.2021.39.220.28505. eCollection 2021.
thyroid nodules are palpable in about 8% of adults. It is necessary to differentiate benign nodules from malignant ones by the non-invasive ultrasonography thereby reducing the frequency of the invasive fine needle aspiration cytology (FNAC). The study assessed the sonographic and FNAC patterns of thyroid nodules for benign and malignant features in a black African population.
this was a hospital-based, cross-sectional study design over a 1-year period in which one hundred and seven (107) consenting patients between 15 to 80 years of age with palpable thyroid masses by convenience sampling, were consecutively recruited to have both thyroid ultrasound scan and FNAC of their thyroid mass sequentially. Frequency, percentages and two-by-two contingency table were employed for data analysis.
the sonographic features of the thyroid nodules varied from round 80 (74.8%) to oval 25 (23.4%) masses, the presence of thin peripheral halo 83 (77.6%), heterogeneous echo-pattern 104 (97.2%) with cystic component and peripheral vascularity 75 (70.1%). One hundred and five (98.1%) study participants showed benign features on sonography while two had features suspicious of malignancy; however FNAC result in the same group of patients was suggestive of benign masses in all 107 (100%) patients. Histology however confirmed malignancy in the 2 participants with ultrasound features suggestive of malignant thyroid nodules.
ultrasonography is very sensitive in the characterization of thyroid nodules into benign or suspicious for malignancy in black African population.
甲状腺结节在成年人中约有 8%可触及。通过非侵入性超声检查将良性结节与恶性结节区分开来是必要的，从而减少了有创性细针抽吸细胞学检查（FNAC）的频率。本研究评估了超声和 FNAC 模式在黑非洲人群中甲状腺结节的良性和恶性特征。
这是一项为期 1 年的基于医院的横断面研究设计，其中通过便利抽样，连续招募了 107 名年龄在 15 至 80 岁之间、有可触及甲状腺肿块的同意患者，对其进行甲状腺超声扫描和甲状腺肿块的 FNAC。采用频率、百分比和四格表进行数据分析。
甲状腺结节的超声特征从圆形 80 个（74.8%）到椭圆形 25 个（23.4%）肿块不等，83 个（77.6%）存在薄的周边晕环，104 个（97.2%）回声模式不均匀，伴有囊性成分和周边血管化 75 个（70.1%）。105 名（98.1%）研究参与者的超声表现为良性特征，2 名表现为恶性特征可疑；然而，同一组患者的 FNAC 结果提示 107 名（100%）患者均为良性肿块。然而，组织学证实了 2 名超声表现提示恶性甲状腺结节的患者存在恶性肿瘤。
在黑非洲人群中，超声检查在甲状腺结节的特征化为良性或恶性方面非常敏感。
