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 14 Benign and malignant tumours of the conjunctiva

Origin/category of benign tumour	n	(%)	Malignant EMP-tumour entity	n	(%)	Malignant AMP-tumour entity	n	(%)
Melanocytic	772	49	Melanoma	142	45	Epithelial precancerous lesion	305	86
Epithelial	653	41	Lymphoma	79	25	Melanocytic precancerous lesion	45	13
Mesenchymal	70	4.4	Squamous cell carcinoma	78	25	Basal cell carcinoma	3	0.8
Choristoma	60	3.8	Other malignant conjunctival tumour	14	4.5
Lymphocytic	18	1.1
Other benign conjunctival tumour	5	0.3
Sum	1,578		Sum	313		Sum	353

Number and relative frequency of conjunctival 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

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