barw Judi Clinical Journal 3105-4102 2026 06 16 Multifocal Fibrosing Thyroiditis: A High-Volume Center Experience 15 19 10.70955/JCJ.2026.03 eng Abdulwahid M. Salih Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq 0009-0006-5546-5878 Ari M. Abdullah Department of Pathology, Sulaymaniyah Teaching Hospital, Zanko Street, Sulaymaniyah, Iraq Aras J. Qaradakhy Department of Radiology, Shorsh Teaching Hospital, Zanko Street, Sulaymaniyah, Iraq Rawa M. Ali Department of Pathology, Hospital for Treatment of Victims of Chemical Weapons, Halabja, Iraq Karzan M. Salih Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Ahmed H. Ahmed Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Saeed H. Ali Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Muhammad H. Ali Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Imad J. Habibullah Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Mariwan L. Fatah College of Medicine, Department of Clinical Sciences, University of Sulaimani, Madam Mitterrand Street, Sulaymaniyah, Iraq Hawbir A. Muhammed Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Daroo A. Kareem Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Abdullah A. Qadir Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq Las L. Hussain Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah, Iraq 2026 04 12 Introduction: Multifocal fibrosing thyroiditis (MFT) is a rare and underrecognized fibroinflammatory lesion of the thyroid characterized by multiple discrete fibrotic foci with reactive epithelial changes. Its morphologic overlap with papillary thyroid carcinoma (PTC) and its reported coexistence with PTC have generated ongoing debate regarding its clinical and biological significance. The primary aim of this study is to characterize the clinicopathologic features of MFT across a large single-center experience. Methods: A retrospective case series was conducted at a single endocrine center between October 2022 and January 2026. All patients with histopathologically confirmed MFT were included. Demographic, clinical, laboratory, radiologic, surgical, and histopathologic data were collected and analyzed descriptively. Results: Twenty-seven patients were identified, with a mean age of 45.1 ± 8 years, of whom 22 (81.5%) were female. Twenty-four patients underwent total thyroidectomy (88.9%). Concurrent PTC was identified in 11 cases (40.7%). Among the 11 PTC cases, 8 (72.7%) were unifocal, and 3 (27.3%) were multifocal. Conclusion: Multifocal fibrosing thyroiditis is a rare thyroid lesion with distinctive histopathologic features. Greater awareness of this entity may improve diagnostic accuracy and clarify its clinical significance.