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Fibrous Tumors of the Skin

»	What are tumors of fibrous tissue?
»	What is an acrochordon?
»	Is there a known cause for acrochordons?
»	Are any complications associated with acrochordons?
»	Are acrochordons associated with intestinal polyposis?
»	How can acrochordons be treated?
»	What is a hypertrophic scar?
»	What is a keloid?
»	List the clinical features useful in distinguishing hypertrophic scars from keloids.
»	Do any factors predispose to hypertrophic scars and keloids?
»	List the anatomic regions of the body that are most at risk to develop keloids.
»	Are there effective treatments for hypertrophic scars and keloids?
»	What is an acquired digital fibrokeratoma?
»	Has a cause been identified for acquired digital fibrokeratoma?
»	How can an acquired digital fibrokeratoma be treated?
»	What is nodular fasciitis?
»	What is a connective tissue nevus?
»	Why are connective tissue nevi important?
»	What is the gene defect in Buschke-Ollendorf syndrome?
»	What is infantile digital fibromatosis?
»	Describe the natural history of infantile digital fibromatosis.
»	What is a dermatofibroma?
»	What is a positive “dimple” sign?
»	Do dermatofibromas transform into skin cancer?
»	What is the best way to treat a dermatofibroma?
»	Are multiple dermatofibromas associated with any internal diseases?
»	What is a “fibrous papule of the nose”?
»	How is a fibrous papule of the nose best treated?
»	What are “giant cell tumors of the tendon sheath”?

What is a connective tissue nevus?

Connective tissue nevus is a term used for cutaneous hamartomas composed primarily of collagen (collagenomas), elastin (elastomas), or a combination of these two. While these are produced by fibroblasts, connective tissue nevi are typically no more cellular than normal dermis. Clinically, they present as one or more dermal papules or plaques. Connective tissue nevi composed primarily of collagen are skin-colored, while those composed primarily of elastin may be skin-colored or yellowish.