Biomaterial Database

Atypical fibroxanthoma and malignant fibrous histiocytoma of the skin. 2003

Clara Rizzardi, and Francesca Angiero, and Mauro Melato

Unit of Pathology, University of Trieste, Trieste, Italy. melato@univ.trieste.it

A case of cutaneous atypical fibroxanthoma (AFX) which metastasized, leading to patient death, is described. This is the third reported case in which a lesion qualified as AFX behaves in such an aggressive manner, comparable with that of malignant fibrous histiocytoma (MFH). Ki-67 proliferation index, p53 and bcl-2 protein expression and DNA ploidy were also consistent with a highly malignant potential. The controversial issue of the biological behavior of AFX and its relationship with MFH is discussed. The authors conclude that MFH and AFX probably represent a single entity with a split biological "personality".

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011003	Ploidies	The degree of replication of the chromosome set in the karyotype.	Ploidy
D003937	Diagnosis, Differential	Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures.	Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D012878	Skin Neoplasms	Tumors or cancer of the SKIN.	Cancer of Skin,Skin Cancer,Cancer of the Skin,Neoplasms, Skin,Cancer, Skin,Cancers, Skin,Neoplasm, Skin,Skin Cancers,Skin Neoplasm
D016159	Tumor Suppressor Protein p53	Nuclear phosphoprotein encoded by the p53 gene (GENES, P53) whose normal function is to control CELL PROLIFERATION and APOPTOSIS. A mutant or absent p53 protein has been found in LEUKEMIA; OSTEOSARCOMA; LUNG CANCER; and COLORECTAL CANCER.	p53 Tumor Suppressor Protein,Cellular Tumor Antigen p53,Oncoprotein p53,TP53 Protein,TRP53 Protein,p53 Antigen,pp53 Phosphoprotein,Phosphoprotein, pp53
D018219	Histiocytoma, Benign Fibrous	A benign tumor composed, wholly or in part, of cells with the morphologic characteristics of HISTIOCYTES and with various fibroblastic components. Fibrous histiocytomas can occur anywhere in the body. When they occur in the skin, they are called dermatofibromas or sclerosing hemangiomas. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 5th ed, p1747)	Dermatofibroma,Hemangioma, Sclerosing,Histiocytoma, Cutaneous,Histiocytoma, Fibrous,Angioma, Sclerosing,Benign Fibrous Histiocytoma,Angiomas, Sclerosing,Benign Fibrous Histiocytomas,Cutaneous Histiocytoma,Cutaneous Histiocytomas,Dermatofibromas,Fibrous Histiocytoma,Fibrous Histiocytoma, Benign,Fibrous Histiocytomas,Fibrous Histiocytomas, Benign,Hemangiomas, Sclerosing,Histiocytomas, Benign Fibrous,Histiocytomas, Cutaneous,Histiocytomas, Fibrous,Sclerosing Angioma,Sclerosing Angiomas,Sclerosing Hemangioma,Sclerosing Hemangiomas
D019253	Proto-Oncogene Proteins c-bcl-2	Membrane proteins encoded by the BCL-2 GENES and serving as potent inhibitors of cell death by APOPTOSIS. The proteins are found on mitochondrial, microsomal, and NUCLEAR MEMBRANE sites within many cell types. Overexpression of bcl-2 proteins, due to a translocation of the gene, is associated with follicular lymphoma.	bcl-2 Proto-Oncogene Proteins,c-bcl-2 Proteins,B-Cell Leukemia 2 Family Proteins,BCL2 Family Proteins,BCL2 Proteins,B Cell Leukemia 2 Family Proteins,Family Proteins, BCL2,Proteins, BCL2,Proteins, BCL2 Family,Proto Oncogene Proteins c bcl 2,Proto-Oncogene Proteins, bcl-2,bcl 2 Proto Oncogene Proteins,c bcl 2 Proteins,c-bcl-2, Proto-Oncogene Proteins