Ordered that the order is affirmed insofar as appealed from, with costs.
The defendant Greco made out a prima facie case for summary judgment. The conclusory allegations of negligence asserted by the plaintiff's expert in opposition to the motion were unsupported by evidence tending to establish the essential elements of malpractice, especially proximate cause, and therefore were insufficient to defeat Greco's motion for summary judgment (see, Alvarez v. Prospect Hosp., 68 N.Y.2d 320, 324; Guida v. Hsu, 187 A.D.2d 485; Burt v. Lenox Hill Hosp., 141 A.D.2d 378; Kane v. City of New York, 137 A.D.2d 658, 660; see also, Kazakias v. Bistricer, 180 A.D.2d 666; Rosado v. Lutheran Med. Ctr., 202 A.D.2d 412). Bracken, J.P., Sullivan, Miller and Hart, JJ., concur.