Conversation: The conversation between human and AI assistant.
[|Human|] HI just inquiring if it is routine to be referred to a specialist of Hematology/Oncology after you have had been diagnosed with blood clots in the lung - yes he was a smoker - has stopped but I am concerned ? Is Oncology normally also part of the hematology specialty
[|AI|]  Hello dear, thanks for your question on Chat Doctor. I can understand your situation and problem. Blood clots in lung is known as pulmonary embolism (PE). Causes for pulmonary embolism are many. Following are the common causes for PE. 1. Blood disorder(coagulation disease)2. Smoking3. Cancer4. DVT (deep venous thrombosis) of calf veins.5. Prolonged immobilization etc. So in the work up of pulmonary embolism, we need to rule out coagulation disorders and cancer first. So hematologist is referred. And oncology and hematology are two different branches. Involvement of both is needed in PE.