Posterior Subhyaloid Precipitates: 'KPs' of the Posterior Segment.

Purpose: To describe the course of posterior subhyaloid precipitates (PSPs) accompanying active retinitis. Methods: Retrospective study of three retinitis cases associated with PSPs and literature review. Results: Cases 1 and 2 were Toxoplasma retinochoroiditis. Case 3 had bilateral retinitis post-febrile illness. PSPs were yellowish-white spherical lesions seen in the presence of partial posterior hyaloid detachment (PVD) in the retro-hyaloid space lining the inferior PVD margin. In all 3 cases, PSPs resolved during treatment for primary disease. Resolution of PSPs preceded resolution of retinitis. Literature review revealed similar lesions in CMV retinitis and syphilis in addition to Toxoplasma retinochoroiditis. Conclusion: PSPs were seen in the presence of active retinitis and partial PVD when inflammatory aggregates gravitate inferiorly in the subhyaloid space. They were observed during active retinitis and their resolution preceded the resolution of retinitis, thus providing a potential marker for disease resolution.

Citation

Ashish Khalsa, Anup Kelgaonkar, Srikanta Kumar Padhy, Tushar Agarwal, Anamika Patel, Umesh Chandra Behera, Soumyava Basu. Posterior Subhyaloid Precipitates: 'KPs' of the Posterior Segment. Seminars in ophthalmology. 2021 Nov 17;36(8):751-756

Mesh Tags

PMID: 33734863

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