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Sclerosing polycystic adenosis: A rare tumor misdiagnosed as retention cyst on fine needle aspiration cytology
Author(s) -
Ahmad Ansari Fuzail,
Bahadur Shalini,
Katyal Akshi,
Narula Aastha,
Nargotra Namrata,
Singh Sompal
Publication year - 2017
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.23701
Subject(s) - medicine , mucoepidermoid carcinoma , cyst , pathology , fine needle aspiration , salivary gland , differential diagnosis , parotid gland , cytology , cytopathology , fine needle aspiration cytology , biopsy , radiology
Sclerosing polycystic adenosis (SPA) is a rare benign neoplasm of the salivary gland which resembles the fibrocystic disease of the breast clinically as well as morphologically. This entity has varied morphological presentation on fine needle aspiration. Only a few case reports and occasional case series are found in the literature describing its cytology. Here we are presenting a case of SPA in the parotid gland in a 13‐year‐old male patient who presented with a slow growing infra‐auricular mass since one year without any other symptoms. Radiological investigation suggested a possibility of matted level II cervical lymph nodes. Fine needle aspiration of the same showed only crystalloids in a dirty background. Hence, a possibility of retention cyst was given and excision was advised. On histopathological examination, the mass was diagnosed as Sclerosing polycystic adenosis of the parotid gland. Since SPA is a rare entity with diverse morphological features, it is more likely to be misdiagnosed on cytology. Recognition of this benign entity is important since the differential diagnosis includes other more common benign and malignant salivary gland neoplasm particularly mucoepidermoid carcinoma and other tumors with cystic and oncocytic features. Repeat aspiration from multiple sites should be considered in cystic lesions of the salivary gland so that its varied cytological components can be yielded to help with the diagnosis. Diagn. Cytopathol. 2017;45:640–644. © 2017 Wiley Periodicals, Inc.