Fig. 2

Seventy-nine-year-old female with a past medical history of systemic sclerosis and Raynaud’s disease. She presented with symptoms of weight loss, retrosternal chest discomfort and general cognitive decline. Prior investigations had shown a raised CRP and normal WCC in her routine blood, and an OGD showed oesophagitis only. She had a CT CAP and PET-CT to investigate for possibility of an organ tumour/large vessel vasculitis. Image a shows axial CT with a large left-sided thyroid mass. Image b is a fused axial PET-CT scan showing 33 mm × 36 mm metabolically active lesion (SUV max 10.3 g/ml) which occupies much of the left lobe of the thyroid gland and is responsible for tracheal deviation to the right. FNAC confirmed follicular carcinoma