Evidence Hub

Combined Hamartoma of the Retina and Retinal Pigment Epithelium: An Optical Coherence Tomography-Based Reappraisal

Chawla R, Kumar V, Tripathy K, Kumar A, Venkatesh P, Shaikh F, Vohra R, Molla K et al.

American journal of ophthalmology, 2017

9 participants

Abstract

PURPOSE: To analyze the optical coherence tomography (OCT) characteristics of combined hamartoma of the retina and retinal pigment epithelium (CHRRPE) involving the macula.

DESIGN: Retrospective, observational case series.

METHODS: setting: Single institutional.

STUDY POPULATION: Fourteen consecutive patients of CHRRPE were included.

OBSERVATION PROCEDURES: The authors analyzed the clinical features, color fundus photography, and swept-source or spectral-domain OCT of all the involved eyes.

MAIN OUTCOME MEASURES: OCT characteristics, especially the involvement of the retinal pigment epithelium (RPE).

RESULTS: A total of 16 eyes of 5 female and 9 male patients were analyzed. The mean age (± SD) was 17.9 ± 6.4 (range 10-34) years. Mean best-corrected visual acuity (± SD) in logMAR was 0.9 ± 0.5 (20/160 ± 20/60). The OCT was suggestive of a focal mass-like lesion primarily involving the inner retinal layers limited externally by the outer plexiform layer (OPL) in 15 eyes (93.7%). The OPL appeared to have a saw-tooth appearance ("intraretinal peaks") in 12 eyes (75%). The convolutions of the OPL were broader and deeper in some eyes (5 eyes, 31.2%), giving an "omega sign" (ω) appearance. The ellipsoid zone appeared intact in 13 eyes (81.2%). The RPE band appeared intact in all eyes.

CONCLUSIONS: Considering the OCT features, available evidence, and embryology, we propose that the true nature of CHRRPE should be reanalyzed. In our series, CHRRPE was noted to be primarily a…

How strong is the evidence?

Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health. Reported size: 9 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

Read the paper

Related studies

Go deeper in Evidence Hub

Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.

Open this study Sign up free