Parotid dermoid cyst: a rare entity

2009 ◽  
Vol 123 (2) ◽  
Author(s):  
S Islam ◽  
G R Hoffman
Keyword(s):  
Parotid Gland ◽  
Dermoid Cyst ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
Case Reports ◽  
English Literature ◽  
Needle Aspiration ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology

AbstractObjective:We report a rare case of parotid dermoid cyst.Method:A case report of parotid dermoid cyst is presented, as well as a brief review of the literature and a summary of the lesion's salient clinicopathological features.Results:A 69-year-old man presented with a slow-growing, soft tissue mass of the left parotid gland. Pre-operative evaluation included fine needle aspiration cytology and computed tomography. He subsequently underwent a superficial lobectomy; both the macroscopic and histopathological findings were consistent with a dermoid cyst. Although dermoids within the head and neck are not uncommon, such cysts have only rarely been encountered in the parotid gland.Conclusion:To our knowledge, there are only four previous case reports of parotid dermoid cyst in the English literature. Although the majority of cases of parotid dermoid cyst are diagnosed retrospectively, our case demonstrates the role of fine needle aspiration cytology and highlights the key cytological features suggestive of this entity.

Crystalloid Granuloma of Parotid Gland: A Case Report With Review of the Literature

2018 ◽  
Vol 27 (2) ◽  
pp. 216-220 ◽  
Author(s):  
Norio Motoda ◽  
Munehiko Onda ◽  
Munenaga Nakamizo ◽  
Ryuji Ohashi ◽  
Kimihiro Okubo ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Parotid Gland ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
English Literature ◽  
Inflammatory Cells ◽  
Needle Aspiration ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology

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.

scholarly journals Glioblastoma Metastasis to Parotid Gland and Neck Lymph Nodes: Fine-Needle Aspiration Cytology with Histopathologic Correlation

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
Keyword(s):  
Parotid Gland ◽  
Lymph Nodes ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
Needle Aspiration ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology ◽  
Neck Lymph Nodes

scholarly journals Preoperative Multiparametric Ultrasound and Fine Needle Aspiration Cytology evaluation of parotid gland tumors: which is the best technique?

2021 ◽  
Author(s):  
Olga Guiban ◽  
Antonello Rubini ◽  
Daniele Fresilli ◽  
Giuseppe Tiziano Lucarelli ◽  
Massimo Ralli ◽  
...  
Keyword(s):  
Parotid Gland ◽  
Diagnostic Accuracy ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
Needle Aspiration ◽  
Benign Lesions ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology ◽  
Multiparametric Ultrasound

Aims: To evaluate the pre-surgical diagnostic value of Multiparametric Ultrasound (MPUS) and Fine Needle Aspiration Cytology (FNAC) in differentiating parotid gland tumors, comparing the results with histology. Materials and methods:The study enrolled 84 patients with parotid gland lesions surgically treated in a single tertiary center and evaluated by MPUS. Each patient underwent FNAC. Histological examination was considered the gold standard. Results: Histology identified 62 benign tumors and 22 malignancies. In the differential diagnosis between malignant and benign lesions, B-mode Ultrasound (US), Color-Doppler US, Contrast-Enhanced US (CEUS), Elastography (USE) and FNAC showed the following values of sensitivity: 82%, 81%, 86%, 77%, 73% respectively; specificity: 97%, 61%, 95%, 71%, 97% respectively; PPV: 90%, 43%, 86%, 50%, 89% respectively; NPV: 93%, 90%, 95%, 88%, 91% respectively; and accuracy: 89%, 71%, 90%, 78%, 84% re-spectively. Conclusions: CEUS proved to be a valid and accurate method for identifying malignant tumors of parotid gland; the combination of B-mode US with CEUS showed similar diagnostic accuracy, but better sensitivity than CEUS taken alone. USE did not improve the diagnostic performance of the B-mode US, alone or in association with CEUS; however, it revealed the highest diagnostic accuracy in the differentiation between benign lesions. FNAC demonstrated lower values in comparison with CEUS and with USE. Therefore, according to our study, MPUS could be proposed as a valid alternative to FNAC.

The role of frozen section biopsy for parotid gland tumour with benign fine-needle aspiration cytology

2019 ◽  
Vol 133 (03) ◽  
pp. 227-229 ◽  
Author(s):  
M Suzuki ◽  
Y Nakaegawa ◽  
T Kobayashi ◽  
T Kawase ◽  
T Matsuzuka ◽  
...  
Keyword(s):  
Parotid Gland ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Cytology ◽  
Frozen Section ◽  
Needle Aspiration ◽  
Malignant Tumours ◽  
Aspiration Cytology ◽  
Fine Needle ◽  
Needle Aspiration Cytology ◽  
Gland Tumour

AbstractObjectivesThis study focused on parotid gland tumours diagnosed as benign by fine-needle aspiration cytology and investigated the necessity of frozen section biopsy.MethodsThere were 104 cases of parotid gland tumour where fine-needle aspiration cytology was benign and frozen section biopsy was subsequently performed, between April 2006 and June 2016. In this retrospective study, the results of frozen section biopsy were analysed and compared with the final histological diagnosis.ResultsAmong the 104 cases diagnosed as benign by fine-needle aspiration cytology, 102 cases and 2 cases were diagnosed as benign and malignant, respectively, by frozen section biopsy. The final histological diagnoses showed that 98 cases were benign and 6 cases were malignant. The sensitivity and specificity values of frozen section biopsy in detecting malignant tumours were 33 per cent and 100 per cent, respectively.ConclusionThe necessity of frozen section biopsy in cases with benign fine-needle aspiration cytology may be low in parotid gland surgery.

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