Skin Detective: Lumps in the skin Surface (Harmless lumps)
The medical meaning of the word tumor is simply a swelling or lump raised above the skin surface. Although some tumors are cancers, most are not and the word can be applied to something as harmless as a wart.
Harmless skin lumps of one type or another are exceedingly common: in fact everyone has one or more at some time in their life. Although moles, which are raised, could also be considered here they are dealt with in detail in the section on birthmarks and pigment. This section deals with both harmless or benign lumps as well as true cancers or malignant lumps. (more…)