Figure. 6 PET examination shows large lamellar hypodense shadow in the left pericardium with slightly concentrated radiological distribution, SUVmax about 2.6, CT value about 16 HU (a, b); a hypodense mass shadow with a slightly dense radiological distribution was seen in the left inguinal region, measuring approximately 3.4 cm × 5.4 cm (c); a hypodense mass shadow was seen in the left popliteal fossa with a slightly dense radiological distribution, SUVmax about 2.9 (d).