Large Retroperitoneal Liposarcoma Diagnosed upon Radiological Evaluation of Mild Right-Sided Inguinal Hernia.

[well-differentiated liposarcoma]

While inguinal hernia is common in the primary care office , the differential diagnosis is extensive and includes infectious , inflammatory and neoplastic processes . Varicocele is another frequent , generally benign condition which occasionally reflects serious disease entities . Left-sided or bilateral varicoceles account for the overwhelming majority of varicoceles because the left gonadal vein drains into the left renal vein in contrast to the right gonadal vein , which drains directly into the inferior vena cava , thus making left-sided or bilateral venous congestion more likely . Presence of an uncommon unilateral right -sided varicocele thus warrants further radiological workup , in particular CT abdomen and pelvis , to evaluate for retroperitoneal pathology . We describe a case in which appropriate use of a variety of imaging modalities including testicular ultrasound and CT led to an important diagnosis of a large , well-differentiated liposarcoma in the right retroperitoneum of a patient with a right -sided groin mass .