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 6 Benign and malignant tumours of the eyelid

Origin/category of benign tumour	n	(%)	Malignant EMP-tumour entity	n	(%)	Malignant AMP-tumour entity	n	(%)
Epithelial	5,936	73	Squamous cell carcinoma	265	56	Basal cell carcinoma	3,768	96
Melanocytic	1,201	15	Sebaceous gland carcinoma	75	16	Squamous epithelial precancerous lesion	114	2.9
Inflammatory	403	5.0	Lymphoma	50	11	Melanocytic precancerous lesion	42	1.1
Mesenchymal	347	4.3	Melanoma	36	7.6
Choristoma	140	1.7	Other lid carcinoma	18	3.8
Other benign lid tumour	62	0.8	Metastasis	15	3.2
Neuronal	33	0.4	Sarcoma	11	2.2
Lymphocytic	9	0.1	Malignant transformation	2	0.4
Sum	8,131		Sum	472		Sum	3,924

Number and relative frequency of eyelid lesions with associated benign and malignant tumour diagnoses during the observation period (1945–2015). Malignant tumours were classified based on existing metastatic potential (EMP), absent metastatic potential (AMP) and on their cell of origin. Percentages may not total 100 due to rounding

ISSN: 1471-2415