Conclusion:
In conclusion, anaplastic thyroid carcinoma is an extremely aggressive form of thyroid cancer that can present with atypical clinical manifestations, leading to misdiagnosis. In this case report, we highlight a rare case of anaplastic thyroid carcinoma mimicking cervical tuberculosis, which underscores the importance of considering uncommon etiologies in the differential diagnosis of necrotic neck masses. Given the poor prognosis of these tumors, such an atypical presentation should not delay the diagnostic and, especially, therapeutic management of such aggressive cancers.