OBJECTIVE: To evaluate the cytomorphologic features of benign and malignant @entity5 of soft tissue on fine needle aspirates (FNA) and determine if the variants of @entity1821 could be identified. STUDY DESIGN: FNA of histologically documented benign (51 cases) and malignant (39 cases) @entity5 were reviewed. Twenty-six of the 51 FNA from @entity362 and 34 of the 39 FNA from malignant @entity5 were satisfactory for evaluation. RESULTS: FNA from 26 cases of @entity362 were cellular, with lobulated, fibroadipose tissue. Thin and thick capillaries were seen in 92% and 65% of cases, though a @entity1573 wire vascular pattern was seen in only 4 cases (15%). A cytodiagnosis of @entity1821 could be made in 23 cases (88%), and these could be further subtyped into well-differentiated (4 cases), myxoid (8), pleomorphic (4), round cell (3) and @entity1821 , ?type (4). Only 50% of the well-differentiated @entity1821 , 3 of the 10 @entity1821 and 8 of the 17 @entity243 were diagnosed as such on FNA. Cytologic diagnosis of the remaining 9 cases of @entity243 were @entity1821 (1); @entity1821 , ?type (3); @entity361 (1); suspicious for @entity5 (2); and benign (2). There were no false positives, but there were 3 false negative cases (1 well-differentiated and 2 @entity243 ). CONCLUSION: @entity362 can be diagnosed readily. Arborizing vessels can be seen in @entity362 and should be interpreted with caution. Subclassification of @entity1821 on FNA is possible but not very reliable. @entity243 pose a problem, and aspirates from them can mimic a wide range of morphologic subtypes. The role of FNA in identification of variants of @entity1821 is limited.

Cytomorphology of XXXX of soft tissue.

@entity5 :: ('MESH:D009369', 'Disease') :: ['lipomatous tumors', 'malignancy'] @entity362 :: ('MESH:D008067', 'Disease') :: ['Lipomas', 'lipomas'] @entity243 :: ('MESH:D018208', 'Disease') :: ['Myxoid liposarcomas', 'myxoid liposarcomas', 'myxoid liposarcoma'] @entity1573 :: ('9031', 'Species') :: ['chicken'] @entity361 :: ('MESH:C535700', 'Disease') :: ['malignant mesenchymal tumor'] @entity1821 :: ('MESH:D008080', 'Disease') :: ['pleomorphic liposarcomas', 'liposarcomas', 'liposarcoma', 'pleomorphic liposarcoma']
@entity5 :: (MESH:D009369,Disease) :: ['lipomatous tumors']
