Chief Hospital Corpsman Jared Anderson uses an Infrascanner to assess Master Gunnery Sgt. Maceo Mathis for intracranial hematomas — or bleeding within the skull — aboard Marine Corps Base Quantico, Va. Photo by Master Sgt. Ben Bloker 7468028276_6569267cdd_k By James Clark on May 6, 2015 T&P on Facebook Looking for a great career? Or know another veteran, service member, or military spouse who is? Get started at Hirepurpose.