Caval Seminoma Thrombus on FDG PET/CT

Uncommon Testicular Germ Cell Tumor Thrombus in Azygos Vein Detected by FDG PET/CT

“…PET/CT has a potential for differentiation of tumoral and bland thrombus. Diagnosis of tumoral thrombosis is also important to prevent undesired anticoagulation 1,6–8 . In our case, anticoagulant treatment was added to etoposide and cisplatin regimen by the medical oncology department after the involvement of the venous system.…”

“…Diagnosis of tumoral thrombosis is also important to prevent undesired anticoagulation. 1,[6][7][8] In our case, anticoagulant treatment was added to etoposide and cisplatin regimen by the medical oncology department after the involvement of the venous system. PET/CT interpretation should involve the venous drainage pathway of the metastases, besides the primary mass lesion in cases with testicular germ cell tumor.…”

“…Contrast-enhanced CT demonstrates heterogeneously enhancing and dilated azygos vein, which confirms the tumoral thrombus. Venous tumor thrombosis incidence is increased in testicular tumors 1–4 . However, the usual sites for tumor thrombosis include testicular vein, left renal vein, and/or inferior vena cava, which comprises the testicular vein drainage pathway 3,5,6 .…”

“…Venous tumor thrombosis incidence is increased in testicular tumors. [1][2][3][4] However, the usual sites for tumor thrombosis include testicular vein, left renal vein, and/or inferior vena cava, which comprises the testicular vein drainage pathway. 3,5,6 Tumoral thrombus in the azygos vein is extremely rare.…”