Poorly differentiated carcinoma thyroid: an oddball of thyroid malignancy

Poorly differentiated thyroid carcinoma (PDTC) is an aggressive form of follicular cell derived thyroid carcinoma with a poor prognosis with an incidence of 0.3% to 6.7%. It ranks between DTC and ATC regarding the degree of differentiation. PDTC was recognized as a distinct pathologic entity in the classification of thyroid tumour by World Health Organization (WHO) classification of endocrine tumours. This case report was done in Government Villupuram Medical College and Hospital in a 56-year-old male patient who presented with two swellings in the neck one in the midline in the region of thyroid and the other on right lateral side of neck for 5 months. The patient was diagnosed to have poorly differentiated thyroid carcinoma postoperatively and the following course of events are discussed here.