Bollywood actor Irrfan Khan has been diagnosed with neuroendocrine tumour that has left Bollywood and all his fans in a state of shock. Legions of his are praying for his recovery. The actor earlier hinted that that he was suffering from a rare disease which is to be known and yesterday, he took to Twitter to say what it was. His Tweet opened with a quote from Margaret Mitchell, the author of the famous novel, "Gone with the Wind", "Life is under no obligation to give us what we expect."

Check out the tweet...

What is Neuroendocrine Tumor?

Wondering what the disease is all about, then we will break it down in simpler terms.

Neuroendocrine Tumours

Neuroendocrine tumours are described as rare and can occur anywhere in the body. It is a condition in which the neuroendocrine cells -- which perform specific functions such as regulating air and blood flow through the lungs and controlling how quickly food moves through the gastrointestinal tract -- develop into tumours.

Neuroendocrine Tumor Symptoms, Causes

Most neuroendocrine tumours occur in the lungs, appendix, small intestine, rectum and pancreas. They can be non-cancerous or malignant. Vinit Suri, Senior Consultant, Neurology at Indraprastha Apollo Hospitals noted said, "Because an endocrine tumour develops from cells that produce hormones, the tumour can also produce hormones. This can cause serious illness including palpitation, high or low BP, which may be precursors to various cardiovascular diseases."

Neuroendocrine Tumor Treatment, Is it Curable?

Doctors say that it is curable if it is in early stages, depending the location of the tumour. The specialist added," Waiting for the disease to become symptomatic can make it incurable.”