Document Detail

Diagnostic histological features of metastatic lymph nodes in adenosquamous carcinoma.
MedLine Citation:
PMID:  22572038     Owner:  NLM     Status:  Publisher    
Laryngeal adenosquamous carcinoma (ASC) is a rare malignancy, and the problems in true diagnosis of this entity are well known. In this paper, we describe a case of ASC and discuss its distinct histopathology in metastatic lymph nodes. A heavy smoker man presented with a progressive neck mass. Based on incisional biopsy, diagnosis of squamous cell carcinoma (SCC) was made and total laryngectomy with bilateral radical neck dissection was performed. Sections of primary tumor showed a well-differentiated SCC. However, lymph node metastases had a distinct feature of glandular structures. Further investigation with Mayer's mucicarmine stain confirmed the presence of rare scattered glands in primary tumor and the final diagnosis was changed to ASC. Adenosquamous carcinoma is a distinct entity and must be distinguished from the common SCC of larynx. As a result, when a lesion with diagnosis of squamous cell carcinoma shows evidence of glandular differentiation in a subsequent biopsy or in nodal metastases, more investigation is necessary. Moreover, the glandular structures in primary tumor, as in this case, may be rare and inconspicuous. Therefore, we suggest the precise evaluation of metastatic lymph nodes for any laryngeal tumor with diagnosis of SCC. This helps to make appropriate therapeutic decisions with respect to the aggressive behavior of ASC and its high propensity for lymph node metastasis.
Sepideh Mokhtari; Zhaleh Mohsenifar; Saeedeh Mokhtari
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-7
Journal Detail:
Title:  Pathology, research and practice     Volume:  -     ISSN:  1618-0631     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7806109     Medline TA:  Pathol Res Pract     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier GmbH. All rights reserved.
Department of Oral and Maxillofacial Pathology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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