Open Access
Table I
Table depicting lesions that can present as palatal masses with differentiating features [2–9].
| Lesions | Differentiating features | Histopathological features |
|---|---|---|
| Benign & malignant tumors Epithelial origin: Squamous Cell Carcinoma (SCC) |
Exophytic, proliferative growth with irregular borders and indurated base | Crystal violet and Feulgen stains are superior in identifying the mitotic figures than H&E [2] |
|
Salivary origin: Mucoepidermoid carcinoma |
Firm, painless swelling in the palate that is compressible | Alcian blue and Mucicarmine stains are positive [3] |
| Pleomorphic adenoma | Sometimes it has a blue/ red hue on the surface mimicking a mucocele [4] | Pleomorphic adenoma stains positive for mucicarmine [3] |
| Naso-maxillary origin: | Rubbery submucosal mass in the palate without surface ulceration | |
| Malignancy of maxillary sinus | The condition can present as palatal swelling/mass when there is infiltration of malignancy into the oral cavity with probable clinical symptoms (nasal obstruction, paraesthesia of zygomatic region) [5] | |
|
Infections
Actinomycosis |
More common in immunocompromised individuals. Acute, painful palatal abscess with characteristic sulphur granules [6] | Gomorimethenamine silver stain is useful in identifying the filaments of the organism [7] |
| Mucormycosis | Chronic ulcer with raised margins, exposing the underlying bone [8] | Gomorimethamine silver identifies the fungus. Further gram stain can be done to differentiate from Actinomycosis, which is a bacterial infection [9] |
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