Histological Characterisation of Small Renal Masses and Incidence of Silent Renal Masses

Table 1

Small renal masses with histological confirmation. 𝑁: total number of cases; 𝑛: number of cases; RCC: renal cell carcinoma; OM: other malignant tumors; Onc: oncocytoma; AML: angiomyolipoma; AP: papillary adenoma; OB: other benign lesions.

	Size	𝑁	RCC		OM		Onc		AML		AP		OB
			𝑛	%	𝑛	%	𝑛	%	𝑛	%	𝑛	%	𝑛	%
Kunkle, 2007 [17]	Median 2cm	42	37	88.1	0	0.0	4	9.5	0	0.0	0	0.0	1	2.4
Lebret, 2007 [6]	Median 3cm	135	55	40.7	13	9.6	15	11.1	4	2.9	0	0.0	48	35.6
Chawla, 2006 [18]	Most <4cm	21	17	80.9	0	0.0	4	19.1	0	0.0	0	0.0	0	0.0
Vasudevan, 2006 [19]	All <5cm	70	41	58.6	6	8.6	14	20.0	9	12.9	0	0.0	0	0.0
Neuzillet, 2005 [5]	Mean 3.7cm	15	12	80.0	0	0.0	1	6.7	0	0.0	1	6.7	1	6.7
Mindrup, 2005 [20]	Mean 1.7cm	73	28	38.6	2	2.7	1	1.4	4	5.5	22	30.1	16	21.9
Volpe, 2004 [21]	All <4cm	9	8	88.9	0	0.0	1	11.1	0	0.0	0	0.0	0	0.0
Wehle, 2004 [22]	All <4cm	5	4	80.0	0	0.0	1	20.0	0	0.0	0	0.0	0	0.0
Frank, 2003 [23]	All <4cm	2935	2559	87.2	0	0.0	274	9.3	67	2.3	16	0.5	19	0.7
Bosniak, 1995 [24]	All <3.5cm	26	22	84.6	0	0.0	4	15.4	0	0.0	0	0.0	0	0.0
Silverman, 1994 [25]	All <3cm	35	27	77.1	2	5.7	0	0.0	1	2.9	0	0.0	5	14.3