Welcome, Rajeev, to the best source of information around.
As a starting point, you can search the forums (using the box in the upper right of each page) for
mucoepidermoid. I just did, and eight pages of results came up. You can then read through them to see the experiences of others dealing with this specific disease, and click on their names to get their contact information or to send them a private message.
I'm sure someone will be along to translate the pathology report, though you certainly have identified the critical words.
There's also
specific information about mucoepidermoid carcinoma in the main OCF pages, which have a wealth of information that's worth exploring.
I'm so sorry you and your family have to deal with this. Best of luck going forward.