Biomaterial Database

A rapid and simple method for electron microscopy of paraffin-embedded tissue. 1988

S Widéhn, and L G Kindblom

Department of Pathology, Sahlgren Hospital, University of Göteborg, Sweden.

A new rapid and simple method for electron microscopy of paraffin-embedded material is described. The paraffin-embedded tissue is deparaffinized in xylene, stained in a 0.01% toluidine blue/absolute ethanol solution, infiltrated in a propylene oxide/resin mixture, and embedded in epoxy resin. This quick method, which excludes rehydration, postosmification, and dehydration, takes about 3 h and produces results equal to previously described more laborious re-embedding techniques.

UI	MeSH Term	Description	Entries
D007890	Leiomyosarcoma	A sarcoma containing large spindle cells of smooth muscle. Although it rarely occurs in soft tissue, it is common in the viscera. It is the most common soft tissue sarcoma of the gastrointestinal tract and uterus. The median age of patients is 60 years. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1865)	Leiomyosarcoma, Epithelioid,Leiomyosarcoma, Myxoid,Epithelioid Leiomyosarcoma,Epithelioid Leiomyosarcomas,Leiomyosarcomas,Leiomyosarcomas, Epithelioid,Leiomyosarcomas, Myxoid,Myxoid Leiomyosarcoma,Myxoid Leiomyosarcomas
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D010232	Paraffin	A mixture of solid hydrocarbons obtained from petroleum. It has a wide range of uses including as a stiffening agent in ointments, as a lubricant, and as a topical anti-inflammatory. It is also commonly used as an embedding material in histology.	Parafilm
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012208	Rhabdomyosarcoma	A malignant solid tumor arising from mesenchymal tissues which normally differentiate to form striated muscle. It can occur in a wide variety of sites. It is divided into four distinct types: pleomorphic, predominantly in male adults; alveolar (RHABDOMYOSARCOMA, ALVEOLAR), mainly in adolescents and young adults; embryonal (RHABDOMYOSARCOMA, EMBRYONAL), predominantly in infants and children; and botryoidal, also in young children. It is one of the most frequently occurring soft tissue sarcomas and the most common in children under 15. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p2186; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1647-9)	Rhabdomyosarcomas
D012983	Soft Tissue Neoplasms	Neoplasms of whatever cell type or origin, occurring in the extraskeletal connective tissue framework of the body including the organs of locomotion and their various component structures, such as nerves, blood vessels, lymphatics, etc.	Neoplasm, Soft Tissue,Neoplasms, Soft Tissue,Soft Tissue Neoplasm
D013048	Specimen Handling	Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.	Specimen Collection,Collection, Specimen,Collections, Specimen,Handling, Specimen,Handlings, Specimen,Specimen Collections,Specimen Handlings