What is the Difference Between Cyst and Tumor?

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The main difference between a cyst and a tumor is that a cyst is a sac-like structure filled with fluid, air, or another substance, while a tumor is a solid mass of tissue. Here are some key differences between cysts and tumors:

  • Formation: Cysts can form when something blocks a gland or other bodily drainage, causing the body to build a sac around the substance. Tumors, on the other hand, occur when cells grow uncontrollably when they shouldn't, or when cells don't die when they should.
  • Location: Cysts can form anywhere on the body, including on the bones and soft tissues. Tumors can also form in any part of the body.
  • Malignancy: Cysts are usually benign (noncancerous) and not related to cancer. Tumors can be either benign (noncancerous) or malignant (cancerous).
  • Growth: Cysts generally do not grow large and can often be left alone unless they cause symptoms or are in a location where they are bothersome. Tumors can sometimes grow large enough to put pressure on surrounding tissues, causing pain and other symptoms.
  • Diagnosis: A doctor may use diagnostic imaging, such as ultrasound or take a biopsy, to determine whether a growth is a tumor or a cyst.

Treatment for cysts and tumors depends on several factors, such as the location, cause, and whether it's cancerous or not. While most cysts don't require treatment and can be left alone, tumors may require treatment with surgery, radiation therapy, chemotherapy, or a combination of these and other therapies.

Comparative Table: Cyst vs Tumor

Feature Cyst Tumor
Definition A cyst is a sac-like structure that usually contains fluid, air, or another substance. A tumor is an abnormal mass of tissue or swelling that can form in any part of the body. It can be benign or cancerous (malignant).
Formation Cysts can form when something blocks a gland or other bodily drainage, causing the substance to get backed up and the body to build a sac around it. Tumors form when cells grow and divide too quickly, often due to a malfunction in the cell growth and division process.
Characteristics Cysts are typically round, smooth, and easy to roll around. They can be any size or shape, and most are harmless. Tumors are usually more solid collections of tissue and can be either benign or cancerous.
Relation to Cancer Most cysts are not related to cancer and are usually benign conditions. Tumors can be either benign or cancerous, and so can cysts.

It is essential to consult a healthcare professional if you notice a lump or bump on your body for proper evaluation and diagnosis. Imaging tests, such as ultrasound or CT scans, may be ordered to determine the nature of the lump. In some cases, a biopsy may be performed to determine the exact nature of the lump.