Table 1.

Diagnosis

Premalignant/malignant epidermal (1179)
Actinic keratosis/cheilitis	913
Basal cell carcinoma	211
Squamous cell carcinoma	40
Dysplasia or carcinoma in situ	14
Metatypical basosquamous cell carcinoma	1
Benign epidermal (723)
Epidermal inclusion cyst	331
Seborrheic keratosis	297
Papilloma or verruca	67
Pilar cyst/trichilemmal cyst	22
Inverted follicular keratosis	6
Benign melanocytic (411)
Nevus	403
Intradermal	347
Compound	46
Blue	3
Combined	2
Cellular blue	1
Junctional	1
Neural	1
Spitz	1
Dysplastic	1
Melanotic macule or melanosis	5
Lentigo simplex	2
Solar lentigo	1
Reactive/granulomatous/histiocytic (66)
Hyperkeratosis	18
Acrochordon	16
Fibroepithelial polyp or fibrous papules	11
Keloid/scar	7
Xanthelasma	6
Granulation tissue proliferations	4
Chondrodermatitis nodularis helicis	2
Lichen simplex chronicus	1
Solar elastosis	1
Pilar (32)
Pilomatricoma	10
Trichilemmoma	8
Trichoepithelioma	5
Dilated pore of winer	4
Trichofolliculoma	3
Occluded or inflamed follicle	2
Soft tissue/mesenchymal (31)
Neural	15
Neurofibroma	10
Palisaded encapsulated neuroma	3
Plexiform neuroma	1
Traumatic neuroma	1
Dermatofibroma	6
Vascular malformations	5
Lipoma/fibrolipoma	2
Vascular leiomyoma	2
Benign fibrous histiocytoma	1
Sebaceous (19)
Sebaceous hyperplasia	13
Nevus sebaceous	3
Sebaceous carcinoma	2
Sebaceous adenoma	1
Sweat gland (9)
Chondroid syringoma	3
Eccrine spiradenoma	2
Syringoma	1
Apocrine hidrocystoma	1
Dermal cylindroma	1
Adenoid cystic carcinoma of skin	1
Other/miscellaneous (9)
Accessory tragus	6
Calcinosis cutis	1
Neuroendocrine carcinoma	1
“Normal” skin	1
Premalignant/malignant melanocytic (8)
Melanoma	6
Melanoma in situ	2