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Updated: Feb 11, 2026

Reconstruct Human Retinoblastoma In Vitro
Published on: October 11, 2022
Is a diagnostic lumbar puncture indicated in intraocular retinoblastoma?
Sidharth Totadri1, Vinay Munikoty1, Usha Singh2
1Department of Pediatrics, Advanced Pediatrics Center, Pediatric Hematology-Oncology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Background:
Lumbar puncture (LP) is frequently performed in patients with advanced intraocular retinoblastoma. However, this may not be necessary in a significant proportion of patients.
Materials And Methods::
A file review of patients who were diagnosed with retinoblastoma over a 13-year-period was performed. Patients who underwent LP as part of staging were included in the study.
Results:
The study included 223 patients. One-third had bilateral retinoblastoma. The grouping was C, D, and E in 4 (2.9%), 41 (29.9%), and 92 (67.2%) patients, respectively. The stage was 0, I, II, III, and IV in 14 (6.3), 123 (55.2%), 13 (5.8%), 70 (31.4%), and 3 (1.3%) patients, respectively. Eight (3.6%) patients had a positive cerebrospinal fluid (CSF) cytology. None of the patients with intraocular disease and 7 (10%) patients with extraocular disease had a positive CSF.
Conclusions:
A diagnostic CSF is not indicated in patients with intraocular retinoblastoma.
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