<unk> s are benign tumors that are composed of fibrous or connective tissue. They can grow in all organs, arising from mesenchyme tissue. The term "fibroblastic" or<unk> tous" is used to describe tumors of the fibrous connective tissue. When the term<unk>  is used without modifier, it is usually considered benign, with the term<unk> rcoma reserved for malignant tumors.
Fibroma
Angiofibroma
Collagenous fibroma
Cellular angiofibroma
Angiosarcoma
Sclerotic fibroma
Sarcoma
Lipofibromatosis