The malignant tumour, for which Yuvraj Singh is getting treatment in the US is curable and the India cricketer will be back on field in three months time, his doctor said.
Oncologist Nikesh Rohtagi, who had earlier treated Yuvraj, clarified that the tumour is located between the two lungs and not inside.
"He has a condition called extragonadal seminoma located between his two lungs rather than in his lungs. It is important to understand that this is not lung cancer nor has the tumor spread into lungs. Extragonadal seminoma is a rare tumor which forms less than one per cent of cancers in the whole," said the doctor.
"The cure rate is 95 per cent. Hopefully he would be on the field by first week of May. Yuvraj should be able to start active training in about ten weeks," he added.
The 30-year-old Yuvraj is currently undergoing chemotherapy in the United States of America.
The mediastinum is the middle section of the chest cavity. It contains all of the chest organs except the lungs. Organs located in the mediastinum include the heart, the aorta, and the thymus gland, the chest portion of the trachea, the esophagus, lymph nodes and important nerves.
Citing reasons for the occurance of this rare cancer, he said, "This cancer is called seminoma as it is a cancer of the testis. But since in Yuvi's case it has started from the chest, such a condition is called extragonadal seminoma. It is generally found in young men."
Dr Rohtagi said that chemotherapy is the best treatment for such cancers.