Is phyllodes tumor benign or malignant?

Phyllodes tumors are most common in women in their 40s, but women of any age can have them. Women with Li-Fraumeni syndrome (a rare, inherited genetic condition) have an increased risk for phyllodes tumors. Most phyllodes tumors are benign (not cancer), but about 1 out of 4 of these tumors are malignant (cancer).

What is a malignant phyllodes tumor?

Malignant phyllodes tumors are a form of breast cancer; however, they are different from more common kinds of breast cancer. Unlike breast cancer which begins in the milk ducts, malignant phyllodes tumors begin in the connective tissue that surrounds and supports the ducts and lobules of the breast.

Is malignant phyllodes tumor curable?

Phyllodes tumours are usually treated with surgery. Most people with borderline phyllodes tumours have no further problems after treatment. For people with a malignant phyllodes tumour, the outlook (prognosis) after treatment is usually good.

Can benign phyllodes turn malignant?

Most phyllodes tumors are benign, but in rare cases they can be malignant (cancerous). In addition, their behavior is unpredictable. In rare cases, a benign tumor can recur (grow back) as a cancer.

What percentage of phyllodes tumors are malignant?

Reports have suggested, however, that about 85-90% of phyllodes tumors are benign and that approximately 10-15% are malignant. Although benign phyllodes tumors do not metastasize, they have a tendency to grow aggressively and can recur locally. Like other sarcomas, malignant phyllodes tumors metastasize hematogenously.

How common are phyllodes tumors?

Phyllodes tumors of the breast are rare, accounting for less than 1% of all breast tumors. The name “phyllodes,” which is taken from the Greek language and means “leaflike,” refers to that fact that the tumor cells grow in a leaflike pattern. Other names for these tumors are phylloides tumor and cystosarcoma phyllodes.

Can Phyllodes spread?

Phyllodes tumors tend to grow quickly, but they rarely spread outside the breast. Although most phyllodes tumors are benign (not cancerous), some are malignant (cancerous) and some are borderline (in between noncancerous and cancerous).

What causes malignant phyllodes tumor?

Experts don’t know what causes phyllodes tumors. Women who have a rare genetic disease called Li-Fraumeni syndrome are more likely to have them. They rarely affect men. Women of any age can get phyllodes tumors, but they’re most common in your 40s.

What makes a tumour malignant or benign?

A tumor is an abnormal lump or growth of cells. When the cells in the tumor are normal , it is benign. Something just went wrong, and they overgrew and produced a lump. When the cells are abnormal and can grow uncontrollably, they are cancerous cells, and the tumor is malignant.

What are symptoms of malignant neoplasms in the colon?

Signs and symptoms of colon cancer include: A change in your bowel habits, including diarrhea or constipation or a change in the consistency of your stool, that lasts longer than four weeks. Rectal bleeding or blood in your stool.

Are all neoplasms malignant?

A neoplasm can be benign, potentially malignant, or malignant (cancer). Benign tumors include uterine fibroids, osteophytes and melanocytic nevi (skin moles). Potentially-malignant neoplasms include carcinoma in situ. Malignant neoplasms are commonly called cancer.

How are benign neoplasms different from malignant neoplasms?

The main difference between benign and malignant tumors is that the former are usually harmless while the latter are usually harmful. In contrast to cancerous tumors, benign tumors do not spread from origin to other parts of the body. Malignant tumors refer to cancerous growths in the body.