Biomaterial Database

Left atrial myxoma. A morphologic and histogenetic study. 1981

P Chopra, and V K Sharma

Seven cases of excised left atrial myxoma are described. These are compared with organizing and organized thrombi. The tumors occurred at ages ranging from 13 to 48 years with male preponderance. There were distinct histological and histochemical differences between myxomas and thrombi. Myxomas were lobulated, soft and gelatinous. The cells were arranged singly, in syncytium, or in gland like manner and around blood vessels. Scant to abundant acid mucopolysaccharide rich stroma with strong metachromasia was present. The cells on histochemical staining revealed a wide range of differentiation and contained small amounts of neutral mucopolysaccharides. Thrombi, on the other hand, were firm, laminated, and the cells were arranged in several stratified layers. Metachromasia was absent. Neutral polysaccharides were absent within the cells of thrombi, These features support the concept that cardiac myxoma is a neoplasm and arises possibly from multipotential mesenchymal cells.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
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)
D006651	Histocytochemistry	Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods.	Cytochemistry
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
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D013927	Thrombosis	Formation and development of a thrombus or blood clot in BLOOD VESSELS.	Atherothrombosis,Thrombus,Blood Clot,Blood Clots,Thromboses