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Updated: Jun 16, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
[A case of cannabis-induced mania]
U Bonnet1, D-I Chang, J Wiltfang
1Arbeitsgruppe für klinische Suchtforschung, an der Klinik für Psychiatrie und Psychotherapie, LVR-Klinikum Essen, Universität Duisburg-Essen, Germany. udo.bonnet@lvr.de
Abstract:
We present the course of a mania most likely induced by cannabis in a young cannabis-dependent patient, but apart from this, healthy male adult. Mania developed in parallel to increasing cannabis inhalation and remitted quickly and completely within one week of abstinence without any antimanic medication in a protective inpatient setting. Simultaneously, the THC-COOH level decreased in serum and urine.
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