From post-war reconstruction to the twenty-first century – ophthalmic pathology in Freiburg 1945–2015: review of 39,256 surgical specimens from various topographical regions collected over 71 years at a large German tertiary eye care centre

Table 21 Comparison of benign eyelid tumours

Author	Aurora and Blodi [18]	Spraul and Grossniklaus [17]	Welch and Duke [19]	Tesluk [21]	Deprez and Uffer [22]	Domingo et al. [23]	Current study
Region	Iowa City	Atlanta	Baltimore	Philadelphia	Lausanne	Manila	Freiburg
Time period	1932–1969	1941 - 1995 ¹⁾	1952–1956	1980 - 1982	1989–2007	2003–2012	1945–2015
Number	n = 471	n = 363	n = 387	n = 319	n = 4,404	n = 344	n = 8,131
Epithelial	68%	74%	61%	81%	71%	61%	73%
Melanocytic	17%	23%	23%	9.0%	19%	20%	15%
Mesenchymal	6.0%	2%	4.0%	-	2.0%	4.7%	4.3%
Choristoma	-	1.7%	6.7%	3.1%	0.7%	²⁾	1.7%
Neuronal	1.3%	-	-	-	0.4%	7.0%	0.4%
Lymphocytic	-	-	-	1.9%	²⁾	2.0%	0.1%
Other benign eyelid tumour	6.6%	-	5.0%	4.7%	7.2%	6.1%	0.8%

Relative frequencies of benign tumours of the eyelid grouped according to their cellular origin and comparison with six other studies. Percentages may not total 100 due to rounding
¹⁾Specimens collected and diagnosed in 1941–1945, in 1970 and in 1995 [17]
²⁾Not specified separately

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