Damian Lillard, Kobe Bryant and Damon Stoudamire were tied for the most games with 50+ points and exactly 0 rebounds, with 1 game.

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most games with 50 points and 0 rebounds
Interpreted as:
most regular-season games by a player with 50 or more points and 0 rebounds
LillardBryantStoudamire111
NAMEGPPTSREBMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINASTSTLBLKTOVPF+/-
Damian LillardDamian Lillard151031.151.00.07.06.00.00.018.028.064.39.012.075.06.07.085.73176003+26
Kobe BryantKobe Bryant161036.861.00.03.00.01.02.019.031.061.33.06.050.020.020.0100.03730121+19
Damon StoudamireDamon Stoudamire154043.054.00.01.01.00.00.020.032.062.58.016.050.06.06.0100.04311003-7
StatMuse has game-level data for rebounds going back to the 1982-83 season.