Cranial Rhabdomyosarcoma Masquerading as Infectious Mastoiditis: Case Report and Literature Review.

Background: Rhabdomyosarcoma originating in the mastoid is rare and may be misdiagnosed as an infectious mastoiditis due to overlapping clinical and imaging features. We aimed to identify distinguishing characteristics to facilitate earlier diagnosis and treatment.

Method: Here we describe a case report and a systematic review of 23 reports describing previous cases of mastoid rhabdomyosarcoma.

Effects of early adolescent methamphetamine exposure on anxiety-like behavior and corticosterone levels in mice.

Methamphetamine (MA) is an addictive psychomotor stimulant that affects the central nervous system and alters behavior. The effects of MA are modulated by age, and while much research has examined the effects of MA use in adults, relatively little research has examined the effects in adolescents. As the brain is developing during adolescence, it is important that we understand the effects of MA exposure in adolescence.