DOI: https://doi.org/10.36347/sjams.2025.v13i11.021

Pages: 1923-1925

Introduction: Thyrotoxicosis is a type of disorder that has fairly common clinical presentation and variety of aetiologies. The aetiological diagnosis is very important as the management is different and it is quite difficult to start treatment without diagnosing the exact cause. Thyroid scan helps in differentiating the various causes more precisely. Ultrasonogram of thyroid gland along with serum thyroid hormones levels are also routinely being advocated. Objective: The study aims to evaluate the spectrum of Tc-99m thyroid scintigraphy findings of thyrotoxicosis patients attend at Institute of Nuclear Medicine and Allied Science (INMAS), Sylhet, Bangladesh. Patients and Methods: A total of 325 new biochemically diagnosed thyrotoxicosis patients from July 2021 to June 2024 were included in the study and retrospective observation study was done. They underwent further evaluation with ultrasonography of thyroid gland and 99mTc scintigraphy. Results: Out of 325 patients of thyrotoxicosis, 181 (55.69%) had hyperfunctioning thyroid gland; 95 (29.23%) had thyroiditis; 33 (10.15%) had toxic multinodular goitre (TMNG); 13 (4.0%) of solitary toxic nodule / Toxic Adenoma (TA) and 03 (0.92%) had thyromegaly with euthyroid status at thyroid scan. Conclusion: Thyroid scan plays a vital role in proper diagnosis & treatment response evaluation of thyrotoxic patients. To distinguish between thyrotoxicosis and other thyroid diseases, physicians may routinely perform thyroid scans.