Table 2. Histopathological classification and clinic features of the malignant tumor.

Type of malignant tumor	Cases	All malignant tumor (%)	Subtype tumor (%)	All tumor (%)	Mean age (range), y	Sex (F/M)	Location (U/L)
Tumors of the epidermis (180, 61.7%)
Basal cell carcinoma	165	56.5	15.3	7.4	63 (12-85)	0.9/1	0.3/1
Squamous cell carcinoma	11	3.8	1	0.5	58 (40-80)	1.2/1	1.8/1
Papillary squamous cell carcinoma	2	0.7	0.2	0.09	65 (54-76)	1/1	1/1
Basosquamous carcinoma	2	0.7	0.2	0.09	53 (49-57)	0/2	1/1
Adnexal tumors (101, 34.6%)
Sebaceous gland carcinoma	101	34.6	38.4	4.5	60 (20-98)	1.9/1	2.1/1
Miscellaneous tumors (11, 3.8%)
Lymphoid and metastatic tumors	5	1.7	0.6	0.2	61 (35-71)	0.7/1	4/1
Melanocytic tumors	4	1.4	0.5	0.2	66 (32-83)	1/1	3/1
Tumors of neural crest origin	2	0.7	0.2	0.09	85 (84-85)	1/1	0/2

F/M: Female/male; U/L: Upper/lower eyelid.