• Alopecia
• Acniform eruptions
• Benign tumors
• Bullous diseases
• Dermoscopy
• Nevi, melanoma
• Nonmelanoma cancer
• Psoriasis and others
• Stds
• Vascular tumors
• Vulvar disease

• Seborrheic Keratosis
• Seborrheic Keratosis
• Seborrheic Keratosis Appearance
• Seborrheic Keratosis Smooth Surfaced Lesions
• Seborrheic Keratosis Rough Surfaced Lesions
• Seborrheic Keratosis Flat Lesions
• Seborrheic Keratosis Color and Structure
• Irritated Seborrheic Keratosis
• Seborrheic Keratosis vs. Melanoma
• Types of Seborrheic Keratosis
• Seborreic Keratosis Treatment
• Dermatofibroma
• Dermatofibroma Information
• Dermatofibroma Appearance
• Dermatofibroma Physical Examination
• Dermatofibroma Treatment
• Epidermal Cyst
• Epidermal Sebaceous Cyst
• Epidermal Sebaceous Cyst Potential to Rupture
• Epidermal Sebaceous Cyst Appearance
• Epidermal Sebaceous Cyst Inflamed and Ruptured
• Epidermal Sebaceous Cyst Gardner Syndrome
• Epidermal Sebaceous Cyst Treatment by Excision
• Epidermal Sebaceous Cyst Treatment by Incision and Drainage
• Pilar Cyst
• Pilar Cyst Information
• Pilar Cyst Appearance
• Pilar Cyst Treatment
• Keratoacanthoma
• Keratoacanthoma Information and Causes
• Keratoacanthoma Appearance
• Keratoacanthoma Growth phases
• Keratoacanthoma Eruptive Variants
• Keratoacanthoma Treatment
• Hypertrophic Scars and keloids
• Hypertrophic Scarring and Keloids
• Hypertrophic Scarring and Scars
• Keloids
• Hypertrophic Scarring and Keloids Treatment
• Skin Tags
• Skin Tags Information
• Skin Tags Appearance
• Skin Tags Removal and Treatment
• Sebaceous Hyperplasia
• Sebaceous Hyperplasia Information
• Sebaceous Hyperplasia Appearance
• Sebaceous Hyperplasia Treatment
• Chondrodermatitis Nodularis Helicis
• Chondrodermatitis Nodularis Helicis
• Chondrodermatitis Nodularis Helicis Appearance
• Chondrodermatitis Nodularis Helicis Treatment
• Nevus Sebaceus
• Nevus Sebaceus Information
• Nevus Sebaceus Appearance
• Nevus Sebaceus Treatment
• Syringoma
• Syringoma Information
• Syringoma Appearance
• Syringoma Treatment

Keratoacanthoma Information and Causes

Description

Keratoacanthoma is a rapidly growing crateriform nodule with a distinctive clinical appearance that is best regarded as a low-grade squamous cell carcinoma. The peak incidence of keratoacanthoma is between ages 50 and 70. This tumor is rare before 40 years of age. Caucasians with fair complexions are most often affected.

Epidemiology

Chemical exposure and human papillomavirus have been implicated as a cause in animal models, although their role in humans is controversial. Historically, keratoacanthomas have been regarded as benign regressing lesions, however, they should be thought of as variants of squamous cell carcinoma and treated as such.