Yuvraj Singh is not suffering from lung cancer, clarified specialists at the Max Super-specialty hospital, where he was being treated before leaving for the United States end of last month.
Yuvraj's tumour lies between the lungs and he has been undergoing chemotherapy in the US since January 25.
"The tumour is located in an area called mediastinal that is between the sternum and spinal column, and between the lungs. It's at the centre of the chest but has not spread to the lungs. It's the most curable form of cancer known," said Dr Nitish Rohatgi, senior consultant medical oncology, who is leading the team of Indian doctors monitoring the treatment.
Yuvraj is suffering from a rare cancer called extragonadal seminoma, which forms less than 1% of cancers. "This form of cancer is commonly found in testicles where it can be removed through surgery, but in the chest it's treated through chemotherapy. The cure rate is above 95%," said Dr Rohatgi.
The cricketer is to undergo three chemotherapy cycles in all. On Wednesday, he will start the third week of his nine-week session. By Wednesday, 33% of his therapy will be covered.
"He is expected to start active training in about 10 weeks and by May, he should be back on the cricket field," said Nishant Arora, Yuvraj's manager.
"During the initial two-three days, he felt minor side-effects like nausea and appetite loss, but he is fine now. In fact, he is reading Lance Armstrong's books, playing video games, going for long walks and sometimes even goes for jogging," he added.
Yuvraj came to Max in the middle of January.
"When we saw him, the diagnosis had already been made. A special testing led to the diagnosis of the form of cancer that was confirmed by the US doctors as well," said Dr Rohatgi, who was with Yuvraj when his chemotherapy started.
"The US-based team has been chosen because of their vast experience with sportsmen and they have had many positive outcomes," he added.
Doctors say the chances of relapse in this form of cancer are very less, and the side-effects of the chemotherapy do not usually last for more than six weeks.
From fellow cricketers to actors, everyone has been wishing him recovery.
"Yuvraj, get up in the morning and say it out loud - 'Everyday in every way I am getting better and better !!' You will!!" tweeted actor Amitabh Bachchan on Monday.
The Lankan cricket board also sent their message.
"(Everyone) at Sri Lanka Cricket convey their prayers and blessings to our dear friend Yuvraj Singh for a speedy recovery. Get Well Soon Yuvraj, the cricket loving public of Sri Lanka too joins us in wishing you good health and best of luck on your road to recovery," it read.