Cannabinoid Hyperemesis Syndrome Presenting With Spontaneous Pneumomediastinum

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Cannabinoid hyperemesis syndrome (CHS) is a relatively new phenomenon first described in 2004, wherein chronic cannabis users presented with vomiting refractory to antiemetics that resolved with cannabis abstinence, with the peculiar observation that they were compulsive hot water bathers. CHS has since been described in a variety of contexts with a variety of complications.

Presently, 22 million Americans report current cannabis usage, a number that will most likely increase as legal prohibitions on cannabis decrease.