Brian Zabin has been named VP business development for AG Mednet (Boston). Zabin joins AG Mednet from Boston Consulting Group, where he was a principal in the Group's Worldwide Healthcare and Corporate Development Practice Areas. AG Mednet says it is the world's largest diagnostic imaging exchange network.

Ulf kerblom has resigned a U.S. manager of Artimplant (Vastra Frolunda, Sweden). Artimplant said it will being recruitment of a new U.S. manager "shortly." Artimplant is a biomaterials company that is focused on solutions to problems in orthopedic and oral surgery.

• Pathwork Diagnostics (Sunnyvale, California), a genomics-based diagnostics company focused on oncology, has expanded its executive team, it said, to prepare for commercialization of its first product. W. David Henner, MD, PhD, was named chief medical officer and David Craford will serve as VP, commercial operations. Henner was previously VP of oncology at Novacea. Craford most recently was VP of business development at Affymetrix. The company's first test — the Pathwork Tissue of Origin Test — is under FDA review for the diagnosis of patients with uncertain primary cancers, in which a tumor's origin cannot be readily identified.

Brook Carlon, SPHR, has been appointed senior VP, human resources, for QuadraMed (Reston, Virginia). Carlon's primary experience is in the IT industry, which includes serving as VP of human resources for M. Transaction Services. QuadraMed's flagship product is Care-Based Revenue Cycle solutions, designed, it says, "to optimize the patient experience and leverage quality of care into payment."