Categories

A sample text widget

Etiam pulvinar consectetur dolor sed malesuada. Ut convallis euismod dolor nec pretium. Nunc ut tristique massa.

Nam sodales mi vitae dolor ullamcorper et vulputate enim accumsan. Morbi orci magna, tincidunt vitae molestie nec, molestie at mi. Nulla nulla lorem, suscipit in posuere in, interdum non magna.

What is the difference between primary tumors and secondary tumors?

A tumor or tumour is commonly used as a synonym for a neoplasm a solid or fluid-filled(cystic)lesion.
– This may or may not be formed by an abnormal growth of neoplastic cells.
– This appears enlarged in size.
– Tumor is not synonymous with cancer.
– A tumor can be benign, pre-malignant, or malignant.
– It may represent a lesion with no cancerous potential whatsoever.
– The nature of a tumor is determined by imaging, by surgical exploration, by a pathologist after examination of the tissue from a biopsyor a surgical specimen.

Causes
A neoplasm can be caused by:
– an abnormal proliferation of tissues.
– genetic mutations.
– encapsulated glandular swellings (thyroid, adrenal gland, and pancreas).
– encapsulated hematomas.
– encapsulated necrotic tissue (from an insect bite, foreign body, or other noxious mechanism).
– keloids.
– granulomas (discrete overgrowths of scar tissue).

Enlargements of normal structures like:
– ureters,
– blood vessels,
– intrahepatic
– extrahepatic biliary ducts
– pulmonary inclusions
– gastrointestinal duplications

Tumours can be primary and secondary.

Primary Tumors

– Primary tumors can be cancerous (malignant) or benign.
– These tumours start in the brian and do not spread.
– They rarely spread beyond the central nervous system.
– The tumor is still taking up space in the skull.
– They can cause serious complications and symptoms.

Benign Brain Tumors
– These are tumors that remain in the part of the brain in which they started.
– They don’t spread into and destroy other areas of the brain.
– They do not spread to other parts of the body.
– A benign tumour can be removed successfully.
– This shall cause no more problem once removed.
– Some benign tumours will regrow slowly.
– These tumours are treated with radiotherapy or further surgery may be needed.

Malignant Primary Brain Tumors
– These are most likely to cause problems by spreading into the normal brain tissue.
– This causes pressure and damage to the surrounding areas of the brain.
– These tumors rarely spread outside the brain to other parts of the body.

Secondary Tumors

– These tumors are often called metastatic tumors.
– They are the result of cancer cells originating from another part of the body.
– They are spread to the brain.
– Secondary brain tumors often indicate advanced stages of disease.
– Both cancerous primary and secondary tumors are life threatening.
– These types of tumors are usually very aggressive.
– Secondary tumors means a cancerous neoplasm that has developed in another organ elsewhere in the body.
– These cancer cells have leaked from that primary tumor and then entered the lymphatic system and blood vessels.
– They then circulate through the bloodstream.
– They are then deposited in the brain.
– These cells continue growing and dividing.
– They become another invasive neoplasm of the primary cancer’s tissue.
– Secondary tumors of the brain are very common in the terminal phases of patients.

The most common types of cancers that bring about secondary tumors of the brain are:
– lung cancer
– breast cancer
– malignant melanoma
– kidney cancer
– colon cancer
– cervical cancer

Signs and Symptoms of secondary tumors:
– In lymph nodes, a common symptom is lymphadenopathy.
– Lungs: cough, hemoptysis and dyspnea (shortness of breath).
– Liver: hepatomegaly (enlarged liver) and jaundice.
– Bones: bone pain, fracture of affected bones.
– Brain: neurological symptoms such as headaches, seizures, and vertigo.
Secondary tumor is occurred by four routes:
– Transcoelomic
– Lymphatic spread
– Haematogenous spread
– Transplantation or implantation

Leave a Reply

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>