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Benign tumors are very diverse; they may be asymptomatic or may cause specific symptoms, depending on their anatomic location and tissue type. They grow outward, producing large, rounded masses which can cause what is known as a "mass effect".
The cause is generally unclear. [1] Risk factors include family history, obesity, and lack of exercise. [1] [3] Diagnosis is typically based on a physical exam. [1] Occasionally medical imaging or tissue biopsy is used to confirm the diagnosis. [1] Treatment is typically by observation or surgical removal. [1]
The lipomas are well-encapsulated, slow-growing, benign fatty tumors. The distribution is defined as being focused in the trunk of the body and extremities. [2] Familial Multiple Lipomatosis can be identified when multiple lipomas occur in multiple family members that span different generations. [2] Some people may have hundreds of lipomas ...
Cherry angioma, also called cherry hemangioma [1] or Campbell de Morgan Spot, [2] is a small bright red dome-shaped bump on the skin. [3] It ranges between 0.5 – 6 mm in diameter and usually several are present, typically on the chest and arms, and increasing in number with age.
Most people with benign angiomyolipomas do not show signs or have symptoms. However, symptoms can occur if the dilated blood vessels in an angiomyolipoma rupture; this is called a retroperitoneal hemorrhage. This can cause pain in the back, nausea and vomiting. Some long-term effects are anemia, hypertension, and chronic kidney disease.
Seborrheic keratosis is the most common benign skin tumor. Incidence increases with age. There is less prevalence in people with darker skin. [21] In large-cohort studies, all patients aged 50 and older had at least one seborrheic keratosis. [22]
A squamous cell papilloma is a generally benign papilloma that arises from the stratified squamous epithelium of the skin, lip, oral cavity, tongue, pharynx, larynx, esophagus, cervix, vagina or anal canal.
Definitive diagnosis is made by tumor biopsy. [12] Surgery is the most common method of treating peripheral nerve sheath tumors. [11] In malignant tumors, complete resection is the only known curative treatment (with a sufficiently wide margin or even amputation to improve prognosis). [12]