Fine-needle aspiration cytology of monomorphic adenomas.
The diagnostic accuracy of fine-needle aspiration of salivary gland lesions is now widely accepted. The cytologic appearance of two rare monomorphic variants of pleomorphic adenomas is described. The trabecular-tubular adenoma consisted of a trabecular arrangement of uniform small cells with scant basophilic cytoplasm and round nuclei. No mucoid spheres were present. The canalicular adenoma also had a distinctive cytologic appearance consisting of papillae and interconnected canaliculi lined by a layer of columnar epithelium. Monomorphic adenomas have unique morphologic appearances that can be recognized in fine-needle aspiration cytology. Preoperative diagnosis can greatly aid the surgeon in the planning of definitive surgical excision of salivary gland neoplasms.
Hruban
R H
RH
Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland 21205.
Erozan
Y S
YS
Zinreich
S J
SJ
Kashima
H K
HK
D000236:Adenoma / Q000000981:diagnostic imaging / Q000473:pathology*; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012468:Salivary Gland Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed