Percentage signal intensity recovery: A step ahead of rCBV in DSC MR perfusion imaging for the differentiation of common neoplasms of brain.

Context: Relative cerebral blood volume (rCBV) and percentage signal recovery (PSR) obtained from T2* dynamic susceptibility contrast magnetic resonance imaging are important parameters for brain tumor assessment.

Aim: To study the accuracy of PSR in the differentiation of low-grade glioma, high-grade glioma, lymphoma, and metastases particularly in comparison to rCBV.

Settings And Design: Retrospective observational study.

Incomplete capsular bag distension syndrome after neodymium:YAG capsulotomy.

We report a 60-year-old man with incomplete capsular bag distension syndrome 2 years after neodymium:YAG (Nd:YAG) laser capsulotomy for capsule opacification, which developed from extracapsular cataract extraction with intraocular lens (IOL) implantation performed 4 years before presentation to our clinic. The patient reported floaters of 15 days duration. Slitlamp examination showed shallowing of the inferior and medial anterior chamber.

Vitrectomy as a treatment for elevated intraocular pressure following intravitreal injection of triamcinolone acetonide.

Purpose: To report control of intravitreal triamcinolone acetonide-induced elevated intraocular pressure (IOP) by vitrectomy-assisted corticosteroid removal.

Design: Interventional case series.

Methods: Of the 26 eyes that had intravitreal injection of triamcinolone acetonide for various causes, 11 eyes (42.

Orbital cysticercosis-associated scleral indentation presenting with pseudo-retinal detachment.

Purpose: To report a clinical picture similar to retinal detachment caused by orbital myocysticercosis-associated scleral indentation.

Design: Interventional case series.

Methods: Of the 49 cases of orbital myocysticercosis, four eyes of four patients had pseudoretinal detachment presentations that are detailed.

Conjunctival ulceration following triamcinolone injection.

Purpose: To report conjunctival ulceration as a complication of periocular triamcinolone acetonide injection. Interventional case series.

Methods: Conjunctival ulceration was found in three patients who had anterior subtenon's or subconjunctival deposition of triamcinolone.

Silicone sleeve of extrusion cannula as an intraocular foreign body.

An unusual intraocular foreign body--the silicone sleeve of a soft-tipped extrusion cannula left behind accidentally in the vitreous cavity following a vitreoretinal surgical procedure for complex retinal detachment--is reported. The silicone sleeve remained within the eye for a year without causing any problem.