Symptoms of malignant neoplasms in the colon include red or very dark blood in the stool, a change in bowel habits, unexplained weight loss, frequent gas pains and stools that are unusually narrow, according to the Natio... More » Health Conditions & Diseases Cancer

Early stages of a malignant neoplasm of the prostate, or prostate cancer, are asymptomatic, according to Mayo Clinic. Later, symptoms include difficulty in urinating and a diminished urine stream. They also include blood... More » Health Conditions & Diseases Cancer

A malignant neoplasm of the brain is also known as a cancerous brain tumor. Tumors are groupings of abnormal cells in the body, notes WebMD. Growth of tumors occurs when abnormal cells continue to be added in the absence... More » Science Human Anatomy Nerves
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According to Mayo Clinic, symptoms of colon cancer include rectal bleeding, persistent abdominal discomfort, unexplained weight loss, weakness or fatigue, the feeling that one's bowels do not completely empty and notable... More » Health Conditions & Diseases Cancer

Unexpected weight loss, bloody stool, change in bowel habits and abdominal discomfort lasting for a long period are symptoms that may indicate colon cancer, notes Mayo Clinic. Rectal bleeding, weakness and fatigue may si... More » Health Conditions & Diseases Cancer

The symptoms of rectal cancer include changes in bowel habits, rectal bleeding or blood in the stool, and continuous abdominal discomfort, including gas, cramps or pain, explains Mayo Clinic. Other symptoms include a con... More » Health Conditions & Diseases Cancer

Symptoms of adenomatous polyps include rectal bleeding, a change in stool color, a change in bowel habits and iron deficiency, according to the Canadian Cancer Society. Adenomatous polyps usually show no symptoms, but th... More » Health Conditions & Diseases