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Myofibroblastoma of the breast with smooth muscle differentiation showing deletion of 13q14 region: report of a case. 2014

Anne-Laure Trépant, and Catherine Sibille, and Ana-Maria Frunza, and Philippe Simon, and Jean-Christophe Noël
Department of Pathology, Erasme Hospital, Brussels, Belgium. Electronic address: atrepant@ulb.ac.be.

Breast myofibroblastomas are rare benign mesenchymal tumors belonging to the group of stromal breast tumors composed of spindle-shaped cells and characterized by a broad morphologic spectrum. Among the different morphologic variants described, breast MFBs can show smooth muscle cell differentiation in very rare cases. In terms of the genetic abnormalities found in this type of tumor, a deletion of chromosome 13q14 was recently confirmed by FISH in some cases of mammary MFB. In this paper, we report an unusual case of MFB with smooth muscle differentiation showing a deletion of chromosome 13q14.

UI MeSH Term Description Entries
D009379 Neoplasms, Muscle Tissue Neoplasms composed of muscle tissue: skeletal, cardiac, or smooth. The concept does not refer to neoplasms located in muscles. Myoblastoma,Myofibroblastoma,Muscle Tissue Neoplasms,Muscle Tissue Neoplasm,Myoblastomas,Myofibroblastomas,Neoplasm, Muscle Tissue
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D001943 Breast Neoplasms Tumors or cancer of the human BREAST. Breast Cancer,Breast Tumors,Cancer of Breast,Breast Carcinoma,Cancer of the Breast,Human Mammary Carcinoma,Malignant Neoplasm of Breast,Malignant Tumor of Breast,Mammary Cancer,Mammary Carcinoma, Human,Mammary Neoplasm, Human,Mammary Neoplasms, Human,Neoplasms, Breast,Tumors, Breast,Breast Carcinomas,Breast Malignant Neoplasm,Breast Malignant Neoplasms,Breast Malignant Tumor,Breast Malignant Tumors,Breast Neoplasm,Breast Tumor,Cancer, Breast,Cancer, Mammary,Cancers, Mammary,Carcinoma, Breast,Carcinoma, Human Mammary,Carcinomas, Breast,Carcinomas, Human Mammary,Human Mammary Carcinomas,Human Mammary Neoplasm,Human Mammary Neoplasms,Mammary Cancers,Mammary Carcinomas, Human,Neoplasm, Breast,Neoplasm, Human Mammary,Neoplasms, Human Mammary,Tumor, Breast
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002872 Chromosome Deletion Actual loss of portion of a chromosome. Monosomy, Partial,Partial Monosomy,Deletion, Chromosome,Deletions, Chromosome,Monosomies, Partial,Partial Monosomies
D002882 Chromosomes, Human, Pair 13 A specific pair of GROUP D CHROMOSOMES of the human chromosome classification. Chromosome 13
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071161 Forkhead Box Protein O1 A forkhead box transcription factor that is a major target of INSULIN signaling and regulator of metabolic homeostasis in response to OXIDATIVE STRESS. It binds to the insulin RESPONSE ELEMENT (IRE) and the related Daf-16 family binding element (DBE). Its activity is suppressed by insulin and it also regulates OSTEOBLAST proliferation, controls bone mass, and skeletal regulation of GLUCOSE metabolism. It promotes GLUCONEOGENESIS in HEPATOCYTES and regulates gene expression in ADIPOSE TISSUE. It is also an important CELL DEATH regulator. Chromosomal aberrations involving the FOXO1 gene occur in RHABDOMYOSARCOMA. FOXO1 Protein,Forkhead in Rhabdomyosarcoma Protein

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