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Rhabdoid large cell carcinoma of lung, with illustrative immunohistochemical and molecular findings.
MedLine Citation:
PMID:  22505007     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Large cell carcinomas with rhabdoid phenotype (LCC-RP) account for <1% of pulmonary large cell carcinomas and are associated with extremely poor prognosis. We report a case of a 64-year-old male patient who presented at an advanced stage with a LCC-RP, arising from a poorly differentiated adenocarcinoma of the lung. Ninety percent of the tumor consisted of large pleomorphic rhabdoid tumor cells that showed eosinophilic cytoplasmic inclusions and the remaining 10% showed evidence of adenomatous differentiation. Rhabdoid areas were immunohistochemically positive for pan-cytokeratin AE1/3, epithelial membrane antigen, vimentin, thyroid transcription factor-1, integrase interactor-1, and negative for desmin. Nuclear positivity was absent for Myo-D1. The parent adenocarcinoma was positive for thyroid transcription factor-1 and cytokeratins 7. Epidermal growth factor receptor mutation analysis revealed the same mutation (p.delL747-T751) in both areas, suggesting that the malignant rhabdoid phenotype represents a dedifferentiation phenomenon of the adenocarcinoma. This is the first reported case of an Exon 19 deletion in epidermal growth factor receptor of the activating type detected in a LCC-RP associated with a poorly differentiated pulmonary adenocarcinoma.
Authors:
Matthias Dettmer; Juergen Hench; Brendan Pang; Niels Willi; Gieri Cathomas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied immunohistochemistry & molecular morphology : AIMM / official publication of the Society for Applied Immunohistochemistry     Volume:  20     ISSN:  1533-4058     ISO Abbreviation:  Appl. Immunohistochem. Mol. Morphol.     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-04-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888796     Medline TA:  Appl Immunohistochem Mol Morphol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  208-13     Citation Subset:  IM    
Affiliation:
*Cantonal Institute of Pathology, Liestal ‡Institute of Pathology, Department of Neuropathology, University Hospital Basel, Switzerland †Department of Pathology and Laboratory Medicine, University of Pittsburgh, Pittsburgh, PA §Department of Pathology, National University of Singapore, Singapore.
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