Table 1.

Review of published literature showing radiological imaging of ectopic thyroid in the porta hepatis

Ref.	Radiological imaging findings
Strohschneider et al[39]	Unenhanced CT: Hyperdense, well-defined mass in comparison to the normal parenchyma
Jamshidi et al[33]	Contrast-enhanced CT: Hyperdense appearance compared to normal liver parenchyma
Ghanem et al[1]	Unenhanced CT: Inhomogeneous, slightly attenuated, lobulated, well-circumscribed, isodense and hypodense mass compared to the liver tissue with some calcifications. Contrast-enhanced CT: Inhomogeneous contrast enhancement
Salam et al[8]	Contrast-enhanced CT: Mass adjacent to the portal vein enhanced in the arterial phase and washed out in the portal phase
Fernandez et al[9]	Contrast-enhanced CT: Heterogeneously enhancing mass
Present case	Non-enhanced CT: Heterogenous, well-circumscribed, high density mass compared to liver parenchyma with calcification. Contrast-enhanced CT: Well-circumscribed, intensely enhancing mass in the arterial phase with decreasing intensity in the venous phase alongside calcification
	CT Angiography (widened image thickness construct): Right hepatic artery supplying the lesion shown clearly in arterial phase
	MRI: Well-demarcated mass with enhancement on T1 and T2 weighted imaging with mixed signal intensity. Diminished signal intensity in both arterial and venous phases

CT: Computed tomography; MRI: Magnetic resonance imaging.