In this study the commonest benign tumor was pleomorphic adenoma 57 (73.87%) followed by monomorphic adenoma
5 (6.41%), warthin tumor 2 (2.56%), myoepithelioma and hemangioma one (1.26%) case each.
As noted above, ACC shows little or no cytoplasm in most cases, (5) whereas cells of pleomorphic and monomorphic adenoma
show cytoplasm that tends to be moderate to abundant with plasmacytoid morphology.
of Patients Deep lobe involvement 9 Facial nerve involvement 2 Cervical lymph nodes 0 Table 7: Showing the FNAC Reports of Swellings (n=57) FNAC Male Female Total % Pleomorphic adenoma 12 20 32 56.16 Warthin's tumour 9 1 10 17.54 Mucoepidermoid carcinoma 3 3 6 10.53 Benign epithelial tumour 1 4 5 8.77 Monomorphic adenoma
0 2 2 3.51 Adenoid cystic carcinoma 0 2 2 3.51 Table 8: Showing the Various Surgical Modalities Done (n=57) Type of Parotidectomy No.
Intra-mandibular salivary monomorphic adenoma
. J Cranio Maxillofac Surg 1990; 18: 122-4.
Because PLGAs share many of the histologic characteristics of pleomorphic adenomas, monomorphic adenomas
, adenoid cystic carcinomas, and low-grade papillary adenocarcinomas, these other tumors should be considered in the differential diagnosis of PLGA.
Daley TD: The use of the term monomorphic adenoma
, basal cell adenoma and canalicular adenoma as applied to salivary gland tumors.
We describe the case of a patient with a parotid mass that was found to consist of both a facial nerve schwannoma and a monomorphic adenoma
. To our knowledge, this is the first report of these two lesions presenting as a single tumor.
It is our opinion, as well as that of Barnes et al  and Dardick et al  that salivary adenomas are part of a spectrum, with monomorphic adenoma
and myoepithelioma at the extremes and a wide range of pleomorphic adenomas in between, depending on the type and degree of gene expression that is coupled with neoplastic transformation.