Mangat Ram can breathe easily after baseball-sized tumour removed from his nostril
Mangat Ram, 17, is only the sixth recorded case of the affliction in the world and had put up with the 1½lb mass for ten years.
But it became so big Mangat could no longer breathe, eat or speak properly, and it was removed.
Surgeons at New Delhi's Loknayank Jaiprakash Narayan Hospital took three hours to remove the mass from his nasal cavity during an operation last week.
Mangat Ram's scan showing the 1½lb tumour on his nose
The tumour was made up of blood vessels, so doctors had to lower his blood pressure to remove it without causing life-threatening bleeding.
Due its massive bleeding tendency, it may pose a threat to life
Dr J C Passey
Dr J C Passey, head of the hospital's ENT department, said: "This tumour is rare and normally the size of a tennis ball.
"But in this case it looked like another head growing along the cheeks of the patient – something like a baseball.
"When we weighed the tumour post-surgery, it was 1½lb."
Mangat Ram during the operation to remove the tumour
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The tumour is known as juvenile nasopharyngeal angiofibroma and is a benign mass that bleeds and most commonly occurs in teenage boys and young men.
According to medical literature, only 65 patients have ever been diagnosed with it – and just six in the nasal septum like this teen.
He has since returned to his village of Kaushambi in Uttar Pradesh and is making a full recovery.
Dr Passey said the operation was risky because the tumour is made up on blood vessels, meaning heavy bleeding is a huge risk during surgery.
He added: "The tumour can start from a place behind the nose and para-nasal sinuses along the base of the skull and expands everywhere into the nose, sinuses, eyes, cheek and even into the brain.
The tumour measured 8 inches by 6 inches by 4 inches
"Though, it is not a cancerous tumour but due its massive bleeding tendency, it may pose a threat to life."
Dr Ravi Meher, professor of ENT, added: "Low blood pressure was maintained during surgery to reduce the risk of bleeding.
"Also, we took out the tumour within few minutes.
"The nasal tumor is usually is small and occupies the nose and sinuses but in this case it looked like another head growing along the cheeks of the patient."
The tumour measured 8 inches by 6 inches by 4 inches but the lad didn't get treatment until this late stage due to living in a remote village near Etawah, Uttar Pradesh.