The term is generally used interchangeably with suprapatellar pouch, but really it is only when the suprapatellar plica forms a complete septum and splits the pouch in two that a distinct bursa exists. If excessive fluid forms in this bursa it may be called a suprapatellar cyst.
New insights about suprapatellar cyst. Crnković T, Gašpar D, Ðurović D, Podsednik D and Slišurić F. Orthop Rev (Pavia). 2012 Jan 2; 4(1): e9.
Large suprapatellar synovial cyst in a 12-year-old girl: arthroscopic decompression. Crnkovic T, Matijasevic B and Matokovic D. J Pediatr Orthop B. 2010 Jan;19(1):114-7. doi: 10.1097/BPB.0b013e3283303392.