Fine needle aspiration cytology of basal cell adenoma of the salivary gland
OBJECTIVE: To formulate cytologic features for differential diagnosis ofbasal cell adenoma (BCA). STUDY DESIGN: The usefulness of 5 items for a cytologically definitivediagnosis of BCA was examined. The 5 items in 8 BCA and 22 non-BCA cases (adenoid cystic carcinoma[ADCC], basal cell adenocarcinoma, myoepithelioma, pleomorphic adenoma and polymorphous low-gradeadenocarcinoma) that displayed mimicking cytology were examined cytologically. RESULTS: The usefulitems were < 5.1 microm in mean of epithelial nuclear short diameter; mild atypia on definitivediagnosis; stromal cell cluster combining smooth margin surrounding the epithelial cell cluster orcontaining the epithelial cell cluster; epithelial clusters surrounded by or adhered to a thick,hyalinized smooth margin without stromal cluster; and closely fastened, tight clusters with densercytoplasm than ADCC, but an indistinct border, with oval nuclei and no hyaline cells. CONCLUSION:Five items are useful criteria for BCA.
Hara,H　Oyama,T　Saku,T
Pathology Division, Yamanashi Prefectural Central Hospital, Yamanashi, KofuCity, Japan. hara2@bird.ocn.ne.jp
Adenocarcinoma　 Adenoma　 Biopsy, Fine-Needle Carcinoma, Adenoid Cystic
