Omar Hussain had to have part of his lung removed. This surgery is known as a _______
http://www.google.com/#q=lung+removal+surgery
pneumonectomy
To find the answer to your question, we can start by using a search engine. In this case, let's search for the medical term for the surgical procedure where a part of the lung is removed.
By inputting the terms "surgical procedure lung removal," we can obtain relevant search results. Upon reviewing the results, we find that the surgery you are referring to is called a "lobectomy."
A lobectomy is a surgical procedure that involves the removal of a lobe or a portion of a lung. It is usually done to treat conditions such as lung cancer, infection, or certain lung diseases.