Document Detail

Cytologic features of sarcomas in fluids.
MedLine Citation:
PMID:  9570208     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Sarcomas account for < 6% of malignant effusions and their diagnosis usually is made in the setting of a known primary tumor. However, these tumors often exhibit a variety of features that can differ from those of the original neoplasm and may preclude the correct diagnosis. This article evaluates the cytomorphology of sarcomas in fluids and determines characteristic features for identification and classification. METHODS: The study included 24 Papanicolaou-stained fluid samples (15 pleural, 8 peritoneal, and 1 pericardial) from patients with a diagnosis of sarcoma. The following features were evaluated: cellular arrangement, cellularity, nuclear/cytoplasmic ratio, background, quality and quantity of cytoplasm, cell borders, and nuclear details. RESULTS: All cytology specimens were diagnosed accurately as malignant. The histopathologic diagnoses were eight malignant fibrous histiocytomas, five leiomyosarcomas, three rhabdomyosarcomas, three liposarcomas, two high grade sarcomas, one osteogenic sarcoma, one synovial sarcoma, and one chondrosarcoma. Cytomorphologic features shared by sarcomas in metastatic sites included single cell arrangement (23 of 24; 95.8%), indistinct cell borders (18 of 24; 75.0%), nuclear pleomorphism (18 of 24; 75.0%) multinucleation (13 of 24; 54.2%), and proteinaceous background with lysed blood (17 of 24; 70.8%). CONCLUSIONS: Sarcomas in effusions share morphologic features that allow their correct diagnosis. Further subclassification can be attempted in the proper clinical setting and by comparison with the primary lesion.
M A Abadi; M F Zakowski
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cancer     Volume:  84     ISSN:  0008-543X     ISO Abbreviation:  Cancer     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-05-13     Completed Date:  1998-05-13     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0374236     Medline TA:  Cancer     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  71-6     Citation Subset:  AIM; IM    
Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.
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MeSH Terms
Aged, 80 and over
Ascitic Fluid / cytology*
Diagnosis, Differential
Middle Aged
Pericardial Effusion / cytology*
Pleural Effusion / cytology*
Sarcoma / classification,  diagnosis,  pathology*

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