India, Aug. 25 -- In an August 24 Instagram post, actor Tannishtha Chatterjee revealed that she has been diagnosed with stage 4 oligometastatic cancer. She posted a picture of herself with a shaved head and penned a long note of her 'incredibly difficult' journey after losing her father to cancer.

But what is stage 4 oligometastatic cancer? In an interview with HT Lifestyle, Dr Santhosh Kumar KN, associate consultant, HCG Bangalore, MBBS, MD medicine (AIIMS, New Delhi), DM medical oncology (AIIMS, New Delhi), explained what stage 4 oligometastatic cancer is, its treatments and diagnosis, and more.

Dr Kumar explained that stage 4 cancer is the condition where the cancer has spread far from the site of origin, with poor outcomes compared ...