Synonyms
Acinic cell adenocarcinoma. The term acinic cell tumor is no longer appropriate.
Definition
Acinic cell carcinoma (AcCC) is one of the three most common primary salivary malignancies with adenoid cystic carcinoma and mucoepidermoid carcinoma (Barnes et al. 2005; Ellis 2008). AcCC is an adenocarcinoma showing acinic cell differentiation with zymogen-type secretory granules. The new entity called mammary analogue of secretory carcinoma (MASC) was described in 2010 (Skálová et al. 2010).
Clinical Features
Incidence
AcCC represents approximately 3% of salivary gland tumors and 8% of malignant major salivary gland tumors.
Age
AcCC may occur at any age (including pediatric age), and the peak of incidence is localized between 20 and 70 years.
Sex
A slight female incidence is observed.
Site
The parotid gland is the predominant (80%) site and around 10% arise in the minor salivary glands.
Treatment
Surgery is usually an initial treatment of AcCC.
Outcome
Recurrences are possible....
References and Further Reading
Barnes, L., Eveson, J. W., Reichert, P., & Sidransky, D. (Eds.). (2005). World Health Organization classification of tumours. Pathology and genetics of head and neck tumours. Lyon: IARC Press.
Bishop, J. A., Yonescu, R., Batista, D. A., Westra, W. H., & Ali, S. Z. (2013). Cytopathologic features of mammary analogue secretory carcinoma. Cancer Cytopathology, 121, 228–233.
Ellis, G. L., & Auclair, P. L.(2008). Tumors of the salivary glands. AFIP atlas of tumor pathology. Fourth Series, Fascicle 9. Washington, DC: American Registry of Pathology, ARP Press.
Gupta, S., & Sodhani, P. (1998). Sialadenosis of parotid gland: A cytomorphologic and morphometric study of four cases. Analytical and Quantitative Cytology and Histology, 20, 225–228.
Klijanienko, J., & Vielh, P. (1997a). Fine-needle sample of salivary gland lesions. V: Cytology of 22 cases of acinic cell carcinoma with histologic correlation. Diagnostic Cytopathology, 17, 347–352.
Klijanienko, J., & Vielh, P. (1997b). Fine-needle sampling of salivary gland lesions. II. Cytology and histology correlation of 71 cases of Warthin’s tumor (adenolymphoma). Diagnostic Cytopathology, 16, 221–225.
Klijanienko, J., & Vielh, P. (1998). Fine-needle sampling of salivary gland lesions. VII. Cytology and histology correlation of five cases of epithelial-myoepithelial carcinoma. Diagnostic Cytopathology, 19, 405–409.
Mrena, R., Leivo, I., Passador-Santos, F., Hagström, J., & Mäkitie, A. A. (2008). Histopathological findings in parotid gland metastases from renal cell carcinoma. European Archives of Oto-Rhino-Laryngology, 265, 1005–1009.
Pisharodi, L. (2013). Mammary analog secretory carcinoma of salivary gland: Cytologic diagnosis and differential diagnosis of an unreported entity. Diagnostic Cytopathology, 41, 239–241.
Skálová, A., Vanecek, T., Sima, R., Laco, J., Weinreb, I., Perez-Ordonez, B., Starek, I., Geierova, M., Simpson, R. H., Passador-Santos, F., Ryska, A., Leivo, I., Kinkor, Z., & Michal, M. (2010). Mammary analogue secretory carcinoma of salivary glands, containing the ETV6-NTRK3 fusion gene: A hitherto undescribed salivary gland tumor entity. The American Journal of Surgical Pathology, 34, 599–608.
Weinreb, I. (2013). Translocation-associated salivary gland tumors: A review and update. Advances in Anatomic Pathology, 20, 367–377.
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Klijanienko, J., Vielh, P. (2017). Acinic Cell Carcinoma, Cytological Findings. In: Schmitt, F. (eds) Cytopathology. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-319-33286-4_808
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DOI: https://doi.org/10.1007/978-3-319-33286-4_808
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