The 24-year-old has been plying his trade with Communicaciones in his homeland and has been topping the scoring charts.
He is now attempting to earn a move to England and has been offered a trial by Ian Holloway's promotion chasing R's.
Pezzarossi, who holds Italian citizenship, has already played in Europe earlier in his career.
He moved to Racing Ferrol in Spain, but things did not work out for him and he returned to Central America.
QPR are looking to bolster their striking options and Pezzarossi could be an intriguing option for them.