1) Benign – Non-Cancerous (cannot spread or grow, or they do so very slowly) and if removed, they do not generally return.

• Benign tumors cells are non-Cancerous (cannot spread or grow, or they do so very slowly) and if removed, they do not generally return.
• Most benign tumors are not harmful, but can cause pain (or other problems) if they press against nerves or blood vessels (or if they trigger the overproduction of Hormones such as in the The Endocrine System).

Examples include:
a) Adenomas
b) Fibroids (Fibromas)
c) Hemangiomas
d) Lipomas
e) Myomas
f) Nevi (Moles)

a) Adenomas

a) Adenomas – They develop in Glandular epithelial tissue, which is the thin membrane that covers glands, organs, and other structures in the body.

Examples include:
• Polyps in the colon
• Fibroadenomas (a common form of benign breast tumor)
• Hepatic Adenomas (occur on the liver)

b) Fibroids (Fibromas)

b) Fibroids (Fibromas) – They are benign tumors that can grow on the fibrous (or connective) tissue of any organ, but the most common is Uterine Fibroids (can cause vaginal bleeding, pelvic pain or discomfort, urinary incontinence). Depending on the proportion of Fibers to cells, they can be soft or hard.

Examples include:
• Angiofibromas (can appear as small red bumps on the face)
• Dermatofibromas (appear on the Skin, often on the lower legs)

c) Hemangiomas

c) Hemangiomas – They are benign tumors that form when blood vessels grow excessively (can appear as red Strawberry Marks on the Skin or they can develop inside the body).

d) Lipomas

d) Lipomas – They are a form of soft tissue, small, painless, rubbery, soft to the touch, and movable tumor consisting of fat cells, appearing at any age but often affect people from 40–60 years old, according to the American Academy of Orthopaedic Surgeons (AAOS). They often appear on the back, shoulders, arms, buttocks, and the tops of the legs.

Examples include:
• Fibrolipomas (contain fat cells and fibrous connective tissue).
• Angiolipomas (appear under the Skin).

e) Myomas

e) Myomas – They are benign tumors that grow from muscle (or in the walls of blood vessels), but can also grow in smooth muscle (like those found inside organs such as the uterus or stomach).

f) Nevi (Moles)

f) Nevi (Moles) – They are very common benign tumors that grow on the Skin.

2) Pre-Malignant – The cells are not yet Cancerous, but they have the potential to become malignant.

• Premalignant tumors cells are not yet Cancerous, but they have the potential to become malignant (needs close monitoring in case it changes).

Examples include:
a) Actinic Keratosis (Solar Keratosis)
b) Cervical Dysplasia
c) Metaplasia of the Lung
d) Leukoplakia

a) Actinic Keratosis (Solar Keratosis)

a) Actinic Keratosis (Solar Keratosis) – Its growth involves Patches of crusty, scaly, and thick Skin, which is more likely to affect fair-skinned people, and sun exposure increases the risk. It sometimes transforms into squamous cell carcinoma.

b) Cervical Dysplasia

b) Cervical Dysplasia – It occurs when a change takes place in the cells that line the cervix and often stems from the human papillomavirus (HPV, an Infection that is common in young people). A doctor may find these cells during a Pap smear. The cells are not Cancerous, but they may become malignant 10–30 years later, resulting in Cervical Cancer.

c) Metaplasia of the Lung

c) Metaplasia of the Lung – These growths occur in the bronchi (the tubes that carry air into the lungs), where Glandular cells (found along the lining of the bronchi) are affected in some people (including Smoking). The cells are not Cancerous, but they may become malignant and become squamous cells, or Cancer.

d) Leukoplakia

d) Leukoplakia – Its a condition which causes thick white painless Patches to form in the mouth, having an irregular, slightly raised shape that are not possible to scrape off. Anyone with this type of patch should see a doctor if it does not go away within 2 weeks.

3) Malignant – Cancerous (the cells can grow and spread to other parts of the body).

• Malignant tumors are Cancerous (the cells can develop/grow uncontrollably and spread to other parts of the body), thus can become life threatening.
• Malignant tumors can grow quickly and spread to other parts of the body in a process called metastasis.
• The Cancer cells that move to other parts of the body through there ability to invade other organs are the same as the original ones, meaning if Lung Cancer spreads to The Liver, the Cancer cells in The Liver are still Lung Cancer cells.

Examples include:
a) Carcinoma
b) Sarcoma
c) Germ Cell Tumor
d) Blastoma

a) Carcinoma

a) Carcinoma – They are the common type of malignant tumors which form from epithelial cells, which are present in the Skin and the tissue that covers or lines the body’s organs. Carcinomas can occur in The Stomach, Prostate, pancreas, lung, Liver, colon, or breast.

b) Sarcoma

b) Sarcoma – They are the tumors start/originate in connective tissue (such as cartilage, Bones, fat, and nerves) in the cells outside the Bone marrow.

c) Germ Cell Tumor

c) Germ Cell Tumor – They are the tumors that develop in the cells that produce sperm and eggs (usually occur in the ovaries or testicles, but they may also appear in the brain, abdomen, or chest).

d) Blastoma

d) Blastoma – They are the tumors that form from embryonic tissue (or developing cells) and blastomas are much more common in children than in adults, where they can lead to tumors in the brain, Eye, or Nervous System.