# Relentless placoid chorioretinitis associated with Crohn's disease and secondary MEWDS: a case report

**Authors:** Marion Sagnard, Pierre Gascon, Alban Comet

PMC · DOI: 10.1016/j.ajoc.2026.102550 · American Journal of Ophthalmology Case Reports · 2026-02-20

## TL;DR

A rare case of eye inflammation linked to Crohn's disease and MEWDS is reported, highlighting the importance of early treatment.

## Contribution

The paper presents a novel case linking relentless placoid chorioretinitis with Crohn's disease and secondary MEWDS.

## Key findings

- RPC was associated with Crohn's disease and MEWDS in a 21-year-old patient.
- Anti-TNF therapy helped stabilize ocular inflammation in the patient.
- Early systemic evaluation and immunomodulatory treatment may prevent vision-threatening complications.

## Abstract

To describe a rare case of relentless placoid chorioretinitis (RPC) associated with Crohn's disease, complicated by secondary multiple evanescent white dot syndrome (MEWDS).

A 21-year-old man presented with acute, painless vision loss in the right eye. Multimodal retinal imaging showed numerous active and atrophic placoid lesions involving both the posterior pole and the retinal periphery, consistent with RPC. Systemic evaluation revealed Crohn's disease. Despite intravenous and oral corticosteroids, new extramacular lesions developed and fundus autofluorescence showed stippling compatible with secondary MEWDS. Introduction of anti–tumor necrosis factor (anti-TNF) therapy for Crohn's disease stabilized ocular inflammation. Visual prognosis remained poor in the affected eye and preserved in the fellow eye.

This case highlights an association between RPC and Crohn's disease and supports an autoimmune mechanism. Early systemic evaluation and timely initiation of corticosteroid-sparing immunomodulatory therapy may help prevent recurrences and vision-threatening complications.

## Linked entities

- **Chemicals:** tumor necrosis factor (PubChem CID 44356648)
- **Diseases:** Crohn's disease (MONDO:0005011)

## Full-text entities

- **Genes:** TNF (tumor necrosis factor) [NCBI Gene 7124] {aka DIF, IMD127, TNF-alpha, TNFA, TNFSF2, TNLG1F}
- **Diseases:** tuberculosis (MESH:D014376), ocular lesions (MESH:D015821), chorioretinal scars (MESH:D002921), lesions (MESH:D009059), autoimmune disease (MESH:D001327), Infectious (MESH:D003141), FAF (MESH:C535828), APMPPE (MESH:D000080363), thyroiditis (MESH:D013966), multiple sclerosis (MESH:D009103), vision loss (MESH:D014786), ocular (MESH:D015817), posterior uveitis (MESH:D015866), syphilis (MESH:D013587), chronic gastrointestinal symptoms (MESH:D012817), inflammatory (MESH:D007249), vasculitis (MESH:D014657), atrophy (MESH:D001284), atrophic changes (MESH:D020966), chorioretinal lesions (MESH:D002825), Crohn's disease (MESH:D003424)
- **Chemicals:** adalimumab (MESH:D000068879), prednisone (MESH:D011241), methylprednisolone (MESH:D008775), infliximab (MESH:D000069285), indocyanine green (MESH:D007208), fluorescein (MESH:D019793)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12952771/full.md

## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12952771/full.md

## References

4 references — full list in the complete paper: https://tomesphere.com/paper/PMC12952771/full.md

---
Source: https://tomesphere.com/paper/PMC12952771