# Local resection via partial lamellar sclerouvectomy for ciliary body tumors — a case series

## TL;DR

This paper presents a case series on using partial lamellar sclerouvectomy to treat large ciliary body tumors, showing improved visual outcomes and no tumor recurrence.

## Contribution

The study demonstrates that partial lamellar sclerouvectomy is effective for large ciliary body tumors previously considered difficult to treat.

## Key findings

- Local resection via PLSU successfully treated large ciliary body tumors with no recurrence in four patients.
- Visual acuity improved in three of four patients, with manageable surgical complications.
- Surgical outcomes were favorable with a mean follow-up of 20.8 months.

## Abstract

Ciliary body tumor is extremely rare and treatment is challenging. The aim of this study is to present our experience in treating this rare entity, especially large tumors with more than 5 clock hours of involvement, and to evaluate the surgical outcomes and complications of local resection via partial lamellar sclerouvectomy in four cases of ciliary body tumors in China.

Four patients with ciliary body tumors underwent partial lamellar sclerouvectomy between October 2019 and April 2023 in Shanghai General Hospital, China. Tumor features, histopathologic findings, complications, visual acuity, and surgical outcomes were reviewed at a mean follow-up of 20.8 months.

Four patients with a mean age of 31.8 years were included in this study. The histopathological diagnosis was adenoma of non-pigmented ciliary epithelium (ANPCE), schwannoma, and multiple ciliary body pigment epithelial cysts. The mean largest tumor base diameter was 6.00 mm (range: 2.00–10.00) and the mean tumor thickness was 3.50 mm (range: 2.00–5.00). Preoperative complications included cataract in 3 (75%) eyes, lens dislocation in 2 (50%), and secondary glaucoma in 1 (25%). Temporary ocular hypotonia was observed in one case and no other postoperative complications were observed. At a mean follow-up of 20.8 months, the best corrected visual acuity increased in 3 eyes and was stable in 1 eye. Tumor recurrence was absent in all eyes. All patients were alive at the end of follow-up.

Local tumor resection via PLSU is useful in the treatment of ciliary body tumors, including large tumors occupying more than five clock hours of pars plicata. Surgery-related complications were manageable with adequate preoperative assessment and careful operation during surgery.

The online version contains supplementary material available at 10.1186/s12886-024-03444-3.

What is known

1. Ciliary body tumor is a rare intraocular tumor that is difficult to detect and determine the malignancy, sometimes leading to overdiagnosis and overtreatment such as eyeball enucleation.

2. Partial lamellar sclerouvectomy (PLSU) is used as a local resection method for iridociliary tumors but surgical procedure is challenging and limited by tumor size.

What this paper adds

1. PLSU can also be used in the treatment of large iridociliary tumors occupying more than five clock hours of pars plicata.

2. Surgery-related complications were manageable with adequate preoperative assessment and careful operation during surgery.

The online version contains supplementary material available at 10.1186/s12886-024-03444-3.