Abstract
Systemic isotretinoin is a well-known human teratogen that remains the most effective treatment for patients > 12 years old with severe nodulocystic acne. This is, to our knowledge, the first report in the dermatology literature of a false-positive serum beta-human chorionic gonadotropin level from recreational cannabis use. It is important to raise awareness of this phenomenon given the ramifications of positive results for the patient, clinician and the potential workup required by various medical teams. We emphasize the importance of taking a recreational drug and alcohol history during the initial consultation and also highlight the importance of revisiting the topic in subsequent follow-up appointments.
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