Palpable Abdominal Mass is a Renal Oncocytoma: Not All Large Renal Masses are Malignant

Table 1

Largest reported renal oncocytomas.

References	Age (years)	Sex	Tumor size (cm)	Presenting Complaint	Treatment	Metastasis/Recurrences
Demos et al. [4]	64	Male	27x20x15	Palpable abdominal mass	Right open radical nephrectomy	None found
Ahmad et al. [5]	61	Male	25x16x16	Lower back/ flank pain	Right open radical nephrectomy	None found
Banks et al. [6]	57	Male	21x18x15	Abdominal discomfort and distension	Right open radical nephrectomy	1.7 cm left lung nodule and several indeterminate liver lesions at diagnosis. Metastasis could not be excluded.
Kilic et al. [7]	65	Male	20x15x10	Abdominal pain	Left open radical nephrectomy	None found
Sundararajan et al. [8]	37	Male	20	Abdominal mass and moderate hypertension	Right open radical nephrectomy	On follow up at 3 months hypertension had resolved.
Current case	59	Female	14x13x12	Palpable mass	Right open radical nephrectomy	Multiple indeterminate liver, bone and lung lesions at diagnosis with benign liver biopsy