Osteoclast-Like Giant Cell Tumor of the Parotid Gland: Report of a Case Diagnosed on Fine-Needle Aspiration Cytology With Histological and Immunohistochemical Findings

2016 ◽  
Vol 44 (6) ◽  
pp. 548-551 ◽  
Author(s):  
Poonam Elhence ◽  
Meenakshi Rao ◽  
Amit Goyal ◽  
Amit Kumar ◽  
Pushpinder S. Khera ◽  
...  
Keyword(s):  
Parotid Gland ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
Needle Aspiration ◽  
Cell Tumor ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology

Fine Needle Aspiration Cytology of Diffuse-Type Tenosynovial Giant Cell Tumors

2017 ◽  
Vol 61 (2) ◽  
pp. 160-164 ◽  
Author(s):  
Zimin Zhao ◽  
Cherie Paquette ◽  
Akeesha A. Shah ◽  
Kristen A. Atkins ◽  
Henry F. Frierson
Keyword(s):  
Giant Cell Tumor ◽  
Giant Cell ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
Needle Aspiration ◽  
Cell Tumor ◽  
Diffuse Type ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology

Background: Tenosynovial giant cell tumor (TSGCT), also known as giant cell tumor of tendon sheath or pigmented villonodular synovitis, is the most common benign tumor of the tendon and synovium. The intra-articular diffuse type can present as a large infiltrative mass involving adjacent soft tissue and sometimes causes secondary destruction of bone, which leads to radiographic and clinical concern for malignancy. The tumor may also be purely extra-articular. Case: Here, we report the fine needle aspiration cytology findings of 2 cases of diffuse-type TSGCT with large mononuclear cells with eccentric nuclei, finely granular cytoplasm, and a peripheral well-defined cytoplasmic rim of hemosiderin (“ladybird cells”). Conclusion: Although the presence of ladybird cells has been described in tissue sections of TSGCT, their identification in cytological specimens has not been reported to our knowledge. When observed, their presence may aid in differentiating TSGCT from other lesions with multinucleated osteoclast-type giant cells occurring at or near joints.

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