Synovial sarcoma metastatic to the parotid gland: A possible pitfall in salivary gland fine needle aspiration cytology. Report of a case with immunocytochemical and fluorescence in situ hybridization findings

2017 ◽  
Vol 45 (9) ◽  
pp. 834-836
Author(s):  
Franco Fulciniti ◽  
Jessica Barizzi ◽  
Vittoria Martin ◽  
Vittorio Tarallo ◽  
Stefano Ermanni
Author(s):  
Nidhi S. Mohan ◽  
Sunita S. Vernekar ◽  
Mohammed M. Abus Samee ◽  
Manjunath D.

<p class="abstract">Malignant oncocytoma is an extremely rare neoplasm of the salivary gland accounting for 0.5% of epithelial salivary gland malignancies and 0.18% of epithelial salivary gland tumors. We report a case of malignant oncocytoma of left parotid gland in a 61-year old female patient. Patient presented with a 6-year history of painless swelling in the left parotid region. Fine needle aspiration cytology of the swelling was suggestive of pleomorphic adenoma. A computed tomography scan performed did not reveal any features suggestive of malignancy. Patient underwent left superficial parotidectomy. However, histopathological examination of the specimen turned out to be malignant oncocytoma. Malignant oncocytoma of salivary glands have rare incidence and may have similar morphologic features with other neoplasms. Despite the tumor being large and malignant in this case, there was no facial palsy preoperatively. As histopathology is often diagnostic, the possibility of malignancy always must be kept in mind preoperatively even when there is no facial palsy or fine needle aspiration cytology not showing up malignancy.</p>


2018 ◽  
Vol 27 (2) ◽  
pp. 216-220 ◽  
Author(s):  
Norio Motoda ◽  
Munehiko Onda ◽  
Munenaga Nakamizo ◽  
Ryuji Ohashi ◽  
Kimihiro Okubo ◽  
...  

Crystalloid granuloma (CG) of salivary gland is an extremely rare inflammatory disease, and only 6 cases have been reported in the English literature. CG is histologically characterized by a granulomatous reaction to amylase crystalloid deposition. A 73-year-old woman presented with a painful left neck mass. Computed tomography depicted a mass located in the lower pole of the left parotid gland, suspicious for a tumoral lesion. Preoperative fine needle aspiration cytology found amylase crystalloid deposition with a few inflammatory cells. Surgical sections of the mass revealed formation of a granuloma containing abundant eosinophilic but glassy and transparent amorphous crystalloids, suggestive of α-amylase crystalloid. No neoplastic elements were detected. The case was eventually diagnosed with CG in the parotid gland. Our findings suggest that when we identify amylase crystalloids in fine needle aspiration cytology smears from the salivary gland, CG should be considered even if neoplasm is clinically or radiographically suspected.


2013 ◽  
Vol 7 (4) ◽  
pp. 409-415 ◽  
Author(s):  
Alfredo E. Romero-Rojas ◽  
Julio A. Diaz-Perez ◽  
Deirdre Amaro ◽  
Alfonso Lozano-Castillo ◽  
Sandra I. Chinchilla-Olaya

2004 ◽  
Vol 48 (1) ◽  
pp. 78-82 ◽  
Author(s):  
Jesùs Vera-Alvarez ◽  
Miguel Marigil-Gómez ◽  
María Dolores García-Prats ◽  
Manuel Abascal-Agorreta ◽  
Miguel Lacasa-Laliena ◽  
...  

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