title: The checkerboard tissue block. An improved multitissue control block.
abstract: We describe an improved method of embedding a large number of tissue samples in a single, normal-sized paraffin block. Because the tissues are evenly distributed in a checkerboard arrangement, they can be readily identified by their position in the resulting sections. This device permits rapid and inexpensive screening of new histologic reagents, and facilitates intra- and interlaboratory quality control.
authors.affiliation: Division of Pathology, City of Hope National Medical Center, Duarte, California.
authors.forename: H
authors.initials: H
authors.lastname: Battifora
authors.forename: P
authors.initials: P
authors.lastname: Mehta
mesh_terms: D005404:Fixatives; D006652:Histological Techniques / Q000295:instrumentation*; D010232:Paraffin
chemical_list: D005404:Fixatives; D010232:Paraffin