Abstract:

OBJECTIVE: Pleomorphic adenoma is the most com-mon tumor of the salivary gland but there are very few studies that reflect the characteristics of the tumor. Our aim is to investigate the histopathological and clinico-pathological features of this tumor and to investigate the characteristics of fine needle aspiration cytology and its compatibility with tissue biopsy. Materials and methods: 85 cases with pleomorphic adenoma were evaluated. The demographic characteris-tics, clinicopathological features and operative data of the patients were recorded retrospectively. The results of fine needle aspiration biopsy (FNAB) before the ope-ration were documented and the compliance of FNAB results with tissue biopsy was evaluated. The male to female ratio in our patients was 1/1. 96 and the average age was 44.45 (11-87). Most of our cases were in the 40-59 age range (41.57%). The tumor was seen in the parotid gland in the majority (59%) and in the minor salivary glands in the 2nd order (18%). The average tumor diameter was 3.23 cm (1-9 cm) and the tu-mor diameter was most frequent (57.30%) in the range of 2-4 cm. The classical type was the most common (94.4%) histological type. Recurrence was seen in only 1 (1.40%) of benign cases. Malignant transformation in the tumor was present in 5 (5.61%) cases. The diagnosis of pleo-morphic adenoma was as high as 80.32% with preope-rative FNAB. The pleomorphic adenoma is most often seen in the parotid gland and is usually located in the water-perficial lobe. It is more frequent in the 4th to 5th decade and in the female gender. The tumor diameter is more in the range of 2-4 cm. The tumor has a low rate of recurrence and malignant transformation. Preoperative FNAB has a high diagnostic accuracy and FNAB is very important for the correct treatment approach.

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