Adrenal mass

Adrenal mass

1) adrenal adenoma

Adrenal mass

2) pheochromocytoma

Adrenal mass

These sonographic images reveal a space occupying lesion above the right kidney in the region of the right adrenal gland. The mass is large, echogenic and poorly defined and pushes the kidney downwards. It shows an inhomogenous appearance, but no calcification is present. The retroperitoneal fat stripe is displaced anteriorly by the mass proving that it is of adrenal and not hepatic origin (see the arrowheads in third image). These ultrasound images of the right adrenal mass suggest likelihood of malignancy. Differential diagnosis includes: 1) adrenal adenoma 2) pheochromocytoma 3) metastasis. Large masses of the type seen here are highly suggestive of malignancy of the adrenal gland. However, the color doppler image shows scanty vascularity of the mass.