|Classification and external resources
Epithelioma is an abnormal growth of the epithelium, which is the layer of tissue that covers the surfaces of organs and other structures of the body.
Epitheliomas can be benign growths or malignant carcinomas. They are classified according to the specific type of epithelial cells that are affected.
The most common epitheliomas are basal cell carcinoma and squamous cell carcinoma (skin cancers).
Treatment usually involves surgically removing the tumor and affected tissue.
The prognosis varies dramatically, depending on the type and stage at the time of treatment. However, the most common epitheliomas are very easily treated and rarely result in death.
See also 
Mule spinners' cancer Adolph Hannover