What does well-differentiated liposarcoma mean?

Disease definition. Well-differentiated liposarcoma (WDLS), the most common type of liposarcoma (LS; see this term), is a slow growing, painless tumor usually located in the retroperitoneum or the limbs. It is composed of proliferating mature adipocytes.

What is the survival rate for liposarcoma?

Well-differentiated liposarcoma has a 100% 5-year survival rate, and most myxoid types have 88% 5-year survival rates. Round-cell and dedifferentiated liposarcomas have a 5-year survival rate of about 50%. Liposarcoma is a rare type of cancer that develops in connective tissues that resemble fat cells.

Is liposarcoma cancer curable?

The treatment of liposarcoma is mainly surgical, with the goal to remove the tumor entirely and prevent its recurrence (achieving a cure) by removing all of the tumor cells.

Does well-differentiated liposarcoma metastasis?

There was no distant metastasis in patients who underwent initial surgery or reoperation. This indicates that well-differentiated liposarcoma does not cause, or only rarely causes distant metastasis.

What is a well-differentiated tumor?

A term used to describe cells and tissue that have mature (specialized) structures and functions. In cancer, well-differentiated cancer cells look more like normal cells under a microscope and tend to grow and spread more slowly than poorly differentiated or undifferentiated cancer cells.

How fast does a liposarcoma grow?

Liposarcomas are also called lipomatous tumors. They usually grow slowly and do not cause pain. In some cases, they can grow very quickly and cause pressure on nearby tissue or organs.

Can liposarcoma be fatal?

A liposarcoma is a malignant tumor. This means it’s cancerous and can spread to other parts of your body, including vital organs and tissues surrounding the original tumor. If left untreated, a liposarcoma can ultimately be life-threatening. Early detection and treatment of a liposarcoma are critically important.

Is well-differentiated good?

Most cancers are graded by how they compare with normal cells. Low grade or grade I tumors are well-differentiated. This means that the tumor cells are organized and look more like normal tissue. High grade or grade III tumor cells are poorly differentiated.

Why is it called well-differentiated?

Why do pathologists use the word differentiated? Pathologists use the word differentiated in their report because not all cancers look the same. Some cancers look very similar to normal, healthy cells while others look very different.

What is the survival rate of liposarcoma?

The prognosis of liposarcomas vary with the type in the location of the tumors. Round-cell and poorly differentiated cell types have a poor prognosis with a survival rate of about 50% over five years. It is not possible to prevent a liposarcoma. At best, you can lower your risk of developing a liposarcoma by avoiding risk factors.

What causes liposarcoma cancer?

Liposarcoma is a malignant tumor that arises from deep soft tissue fat. What triggers the development of liposarcoma is unknown. Liposarcoma risk factors may include radiation, family cancer syndromes, a damaged lymph system, and/or exposure to certain chemicals. Liposarcomas do not develop from common lipomas (benign tumors of fat cells).

What does liposarcoma feel like?

Many patients with liposarcoma will complain of a mass that they can feel. The mass can be soft and fleshy or even firm to palpation. Some doctors may initially try ultrasound, but the diagnosis usually requires standard X-rays that will help show whether or not any bony elements are involved.

Can ultrasound differentiate between lipoma and liposarcoma?

In conclusion, MRI is useful, but imperfect, in distinguishing lipomas, lipoma variants, and well-differentiated liposarcomas. An MRI examination showing a discrete, homogeneous, fatty mass can be considered diagnostic of a simple lipoma.