BERLIN, May 16 (Reuters) - Vantage Towers, the infrastructure unit of Britain’s Vodafone, on Monday reported modest growth in underlying revenue that was just shy of expectations in its first full-year results since floating on the Frankfurt stock exchange. Revenue grew by 2.2% to 966 million euros ($1.17 billion) on a proforma basis in the fiscal year to March 31, slightly short of median forecasts among analysts of 971 million euros compiled by Refinitiv. Core profit, measured as EBITDA after leases, rose by 2.1% to 524 million euros, Vantage said. ($1 = 0.8243 euros) (Reporting by Douglas Busvine Editing by Caroline Copley) Our Standards: The Thomson Reuters Trust Principles.