Vol.95 No.12 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 95 No. 12 December 2002
Aspiration Cytodiagnosis in Salivary Gland Tumor
Ichiro Ando and Eiko Nakazawa
(Juntendo University Urayasu Hospital)
Fuyuki Enomoto and Masato Fujimori
(Juntendo University)
Clinical observations in 123 cases of salivary gland tumors (carcinoma: 11, pleomorphic adenoma: 81, warthin's tumor: 31) between 1991 and 2000 are reported and the cytodiagnosis of fine needle aspirated cytological materials from 114 cases (carcinoma: 10, pleomorphic adenoma: 78, warthin's tumor: 30) are discussed.
Results and conculusions were as follows:
1. In warthin's tumor, possible cytological classification diagnosis of benign tumor (class II) was made in 90％ (27 cases), histological type suspicious diagnosis of warthin's tumor in 90％ (27 cases) and 3 cases yieided unsatisfactory materials.
2. In pleomorphic adenoma, we were possible classification diagnosis of benign tumor (class IIIa～II) was made in 91.9％ (68 cases), histological diagnosis of pleomorphic adenoma in 90.5％ (67 cases) and 6 cases yielded unsatisfactory material.
3. In carcinoma cases, possible cytological classification diagnosis (class V～IIIb) of malignannt tumor was made in 50％ (5 cases), histological type diagnosis of carcinoma in only 30％ (adeno carcinoma: 2 cases, sucamous cell ca: 1 case) and 2 cases yielded unsatisfactory materials.
4. Overall cytological results showed a sensitivity of 62.5％, specifity of 100％, false negative findings in 37.5％, false positive findings in 0％ and unsatisfactory materials in 9.6％.
5. When reexamination of malignant 10 cases was attemped postoperatively, it confirmed correct cytological diagnosis in 2 cases of adenoidcystic ca and a case of mucoepidermoid ca. Thus the cytological sesitivity rate rose from 62.5％ to 75.0％.
6. FNAC (Fine Needle Aspiration Cytology) for salivary gland tumor is a useful diagnostic method, becase the differential diagnosis of benign or malignant tumor and suspicious diagnosis of histologic type are possible.
Key words : clinical cytological diagnosis, parotid gland tumor, submandibular gland tumor, fine needle aspiration cytology