Pars plana vitrectomy後急激なmassive periretinal proliferationにより網膜剥離を来たした1例

A case of massive periretinal proliferation after pars plana vitrectomy

　44歳の男子の左眼の硝子体出血に対し，VISCXを用いてVitrectomyを行つたところ，術後8日目にmassive periretinal prolifcration （MPP）により網膜剥離を来たした。この症例に対し術後14日目にVISC Xを用いてmembrane pceling，赤道部締結術，SF₆によるgas tamponadeを行い，網膜を復位させた。その後再びMPPが再発したが，Ocutomeを使用してmembrane peelingを行い網膜を完全に復位させ，その後6ヵ月間再発なく，矯正視力1．0である。

A case of massive periretinal proliferation (MPP) following a successful pars plana vitrec-tomy for vitreous haemorrhage was reported.

A 44-year-old man developed an intraocular haemorrhage in the left eye due to head concus-sion.

He was admitted to our hospital 3 months later. The vision in his left eye was reduced to hand movement and the fundus was obscuredby dense vitreous opacities.

A consecutive pars plana vitrectomy was successfully performed with VISC X. One week after the operation, MPP occurred and a wide fan-shaped retinal detachment developed below the disc in the inferior quadrants.