Biomaterial Database

Cardiac myxomas correlative study by light, transmission, and scanning electron microscopy. 1989

P F Zhang, and J W Jones, and W R Anderson

Department of Pathology, Hennepin County Medical Center, Minneapolis, MN.

A correlative morphologic study of 17 cardiac myxomas surgically excised or observed at autopsy was performed by light (LM), transmission (TEM), and scanning electron microscopy (SEM). Tumor cells occurred singly (frequently in lacunae), in cords, as vascular-like aggregates, and in complex interdigitating clusters. By TEM, myxoma cells were predominantly undifferentiated mesenchymal cells. The surface topography by SEM revealed numerous clefts and crevices and a continuous cellular lining which, by TEM, appeared to be derived from underlying myxoma cells. The myxoid stroma by SEM was interspersed by numerous reticular fibers that appeared as a sponge-like supportive framework. Complex patterns of interdigitating myxoma cells corresponded well with similar patterns by LM and TEM, demonstrating the advantage of SEM in correlative morphologic studies.

UI	MeSH Term	Description	Entries
D008297	Male		Males
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
D008855	Microscopy, Electron, Scanning	Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.	Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009206	Myocardium	The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.	Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D009232	Myxoma	A benign neoplasm derived from connective tissue, consisting chiefly of polyhedral and stellate cells that are loosely embedded in a soft mucoid matrix, thereby resembling primitive mesenchymal tissue. It occurs frequently intramuscularly where it may be mistaken for a sarcoma. It appears also in the jaws and the skin. (From Stedman, 25th ed)	Angiomyxoma,Angiomyxomas,Myxomas
D005260	Female		Females
D006338	Heart Neoplasms	Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.	Cardiac Cancer,Cardiac Carcinoma,Cardiac Neoplasms,Cardiac Tumor,Cardiac Tumors,Heart Cancer,Heart Tumor,Intracavitary Tumors of the Heart,Myocardial Tumors (Rhabdomyomas and Fibromas),Neoplasms, Cardiac,Neoplasms, Heart,Primary Cardiac Tumors, Childhood,Cancer, Cardiac,Cancer, Heart,Cancers, Cardiac,Cancers, Heart,Carcinoma, Cardiac,Carcinomas, Cardiac,Cardiac Cancers,Cardiac Carcinomas,Cardiac Neoplasm,Heart Cancers,Heart Neoplasm,Heart Tumors,Myocardial Tumor (Rhabdomyomas and Fibromas),Neoplasm, Cardiac,Neoplasm, Heart,Tumor, Cardiac,Tumor, Heart,Tumor, Myocardial (Rhabdomyomas and Fibromas),Tumors, Cardiac,Tumors, Heart,Tumors, Myocardial (Rhabdomyomas and Fibromas)
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths