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The following information was provided by … The following information was provided by the California Department of Public Health, Radiologic Health Branch (RHB) via email:</br>On 10/30/25, the licensee was treating a patient with Y-90 microspheres to a liver lobe in 3 dosages. The first two dosages were successfully administered, but the third dosage did not deliver successfully, with essentially none of the dosage reaching the target. Instead, the majority of the dosage was retained in the administration apparatus with some having leaked out, resulting in contamination of the treatment room and treating personnel. While the licensee reported this event to RHB on 11/1/25, it was reported by email and not directed to the correct RHB sub-organization, nor was the email clear regarding the event. This resulted in the significant delay in reporting this event to the NRC.</br>RHB is still investigating this event.</br>California 5010 Number: 110125</br>A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.necessarily result in harm to the patient. +
08:00:00, 30 October 2025 +
13:38:00, 21 November 2025 +
08:00:00, 30 October 2025 +
The following information was provided by … The following information was provided by the California Department of Public Health, Radiologic Health Branch (RHB) via email:</br>On 10/30/25, the licensee was treating a patient with Y-90 microspheres to a liver lobe in 3 dosages. The first two dosages were successfully administered, but the third dosage did not deliver successfully, with essentially none of the dosage reaching the target. Instead, the majority of the dosage was retained in the administration apparatus with some having leaked out, resulting in contamination of the treatment room and treating personnel. While the licensee reported this event to RHB on 11/1/25, it was reported by email and not directed to the correct RHB sub-organization, nor was the email clear regarding the event. This resulted in the significant delay in reporting this event to the NRC.</br>RHB is still investigating this event.</br>California 5010 Number: 110125</br>A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.necessarily result in harm to the patient. +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 21 November 2025 +
1334-57 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
12:20:02, 1 December 2025 +
13:38:00, 21 November 2025 +
22.193 d (532.63 hours, 3.17 weeks, 0.73 months) +
08:00:00, 30 October 2025 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.