Document Detail


Myofibroblastoma of the breast with diverse differentiations.
MedLine Citation:
PMID:  9199625     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The histogenesis of myofibroblastoma of the breast remains unknown. DESIGN: Two cases of myofibroblastoma of the female breast were analyzed using light microscopy and immunohistochemistry. RESULTS: The tumors were well circumscribed and predominantly composed of bland bipolar spindle cells and interspersed bands of hyalinized collagen. Additionally, one tumor contained a cartilaginous island, and the other contained a well-defined small nodule that consisted of fascicular arrangements of mitotically inactive atypical cells, simulating atypical leiomyoma. Both lesions contained a fatty element. Immunohistochemically, spindle tumor cells expressed desmin, alpha-smooth muscle actin, muscle actin, and CD34. The atypical cells were strongly and diffusely positive for all these markers. Both tumors were DNA diploid and had a moderate S-phase fraction. The patients have no evidence of disease 4 and 18 months after simple excision. CONCLUSIONS: Myofibroblastoma of the breast may be a benign mesenchymal neoplasm capable of diverse lines of differentiation.
Authors:
M Fukunaga; S Ushigome
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Archives of pathology & laboratory medicine     Volume:  121     ISSN:  0003-9985     ISO Abbreviation:  Arch. Pathol. Lab. Med.     Publication Date:  1997 Jun 
Date Detail:
Created Date:  1997-07-03     Completed Date:  1997-07-03     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7607091     Medline TA:  Arch Pathol Lab Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  599-603     Citation Subset:  AIM; IM    
Affiliation:
Department of Pathology, Jikei University School of Medicine, Tokyo, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Antigens, CD34 / analysis
Breast Neoplasms / genetics,  pathology*,  surgery
Cell Nucleus / pathology
Cell Transformation, Neoplastic
Cytoplasm / pathology
DNA, Neoplasm / analysis
Desmin / analysis
Diploidy
Female
Humans
Immunohistochemistry
Middle Aged
Neoplasms, Muscle Tissue / genetics,  pathology*,  surgery
S Phase
S100 Proteins / analysis
Tumor Markers, Biological / analysis
Chemical
Reg. No./Substance:
0/Antigens, CD34; 0/DNA, Neoplasm; 0/Desmin; 0/S100 Proteins; 0/Tumor Markers, Biological

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