WEB DESK: Cancer is one of the deadliest diseases. There are treatment and therapies available to cure it but it still is a horrific illness that any one has to face. Doctors and experts are stressing over non detectable cancers and few of them are given below: 

Kidney cancer

It is one of those cancers that is extremely difficult to detect "Because the kidneys are so deep inside the body, small kidney tumors cannot be seen or felt during an annual physical exam," said Chris Fikry, MD, vice president of oncology at Quest Diagnostics."Additionally, there are no recommended screening tests for kidney cancer in people who are not at increased risk."

Non-small cell lung cancer

Experts suggest people who are smokers or have history of smiking, should talk about CT screening it may help in detecting lung cancer at a bit early stage. As Dr. Fikry adds, "Positron emission tomography (PET) and CT scans can be helpful in diagnosing lung cancer. A doctor may also take cancer cells from lung secretions, fluid around the lungs, or through a biopsy for a confirmatory diagnosis, which typically happens in a later stage."

Ovarian cancer

There are no symptoms from small, early-stage ovarian cancer," states Joe O'Connell, MD, vice president of oncology and hematology at inVentiv Health. "It's most often diagnosed at stages three or four."

Brain cancer

The cancers of brain and spinal cord tumors are detectable due to signs and symptoms David Poulad, MD, board certified neurosurgeon in Union, New Jersey, explains,"If a tumor were to arise in the motor cortex, for example, (the area of the brain involved in controlling voluntary movement), it would cause a noticeable deficit such as weakness in the arm or leg." Also, "These tumors may often arise in neighboring areas where they would cause somewhat vague symptoms to a patient such as clumsiness of the hand in performing fine motor tasks, as opposed to frank weakness or subtle difficulties with speech."

Liver cancer     

Due to no symptoms regarding liver cancer, it is hard to detect too. According to Dr. Fikry, "By the time the liver is large, the tumors has likely spread throughout the organ, beyond the point of being totally removed surgically, but leaving enough healthy liver intact."