Search results
Results from the WOW.Com Content Network
In one of the modern histopathological senses of the term, dysplasia is sometimes differentiated from other categories of tissue change including hyperplasia, metaplasia, and neoplasia, and dysplasias are thus generally not cancerous. An exception is that the myelodysplasias include a range of benign, precancerous, and cancerous forms. Various ...
Common examples of benign tumors include moles and uterine fibroids. Some forms of benign tumors may be harmful to health. Benign tumor growth causes a mass effect that can compress neighboring tissues. This can lead to nerve damage, blood flow reduction , tissue death , or organ damage.
Clinically, mild glycogenic acanthosis is a normal finding, and does not progress to esophageal cancer or to stricture. [4] It is not related to leukoplakia, and is not dysplastic or premalignant. It was originally thought to be associated with gastroesophageal reflux disease (GERD), but the association is not entirely clear. [2]
A precancerous condition is a condition, tumor or lesion involving abnormal cells which are associated with an increased risk of developing into cancer. [1] [2] [3] Clinically, precancerous conditions encompass a variety of abnormal tissues with an increased risk of developing into cancer.
There are two main types of esophageal cancer—adenocarcinoma and squamous cell carcinoma. Worldwide, the incidence of each type is about the same, but in developed countries like North America and Europe adenocarcinoma is the more common. [4] Cancer of the esophagus is often
Women with bladder cancer and haematuria are often misdiagnosed with urinary tract infections, delaying appropriate diagnosis and treatment. [2] Around 3% of people with bladder cancer have tumors that have already spread (metastasized) outside the bladder at the time of diagnosis. [4]
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract. GISTs arise in the smooth muscle pacemaker interstitial cell of Cajal, or similar cells. [2] They are defined as tumors whose behavior is driven by mutations in the KIT gene (85%), [2] PDGFRA gene (10%), [2] or BRAF kinase (rare).
[11] [12] [13] Alternatively, they may point to non-cancerous disease processes, benign tumors, or even be within the physiological range of normal. They may appear at the primary site of cancer or be symptoms of cancer metastasis, or spread. Further workup by a trained healthcare professional is required to diagnose cancer. [12] Constitutional ...