Pleomorphic Adenoma of Minor Salivary Gland in a 14 year Old Child

Abstract

Salivary gland tumours are rare in childhood, and almost all of them occur in parotid gland. Minor salivary gland tumours are even rarer, pleomorphic adenoma being the most frequently found tumour. Only seventeen cases of pleomorphic adenoma arising in the minor salivary gland tumour have been reported in children and adolescents. Pleomorphic adenoma of minor salivary gland represents about 45% of all the tumours of the minor salivary glands. Pleomorphic adenoma is slowly enlarging tumour indistinguishable from adenoid cystic carcinoma clinically, except for pain and ulceration, which is more common in the latter. Carcinoma arising from pleomorphic adenoma has been reported in 3% cases amongst the minor salivary gland tumours. This report presents a case of pleomorphic adenoma of minor salivary gland in a 14 year old female patient with a brief review of literature.

Keywords: Cystic degeneration; Minor salivary gland tumour; Pleomorphic adenoma.

Fig. 1

Preoperative photograph

Fig. 2

PNS view showing radioluscent shadow with well corticated border on right posterior palate region

Fig. 3

Excised specimen

Fig. 4

40× magnification showing bilayered ducts with eosinophillic coagulum in a cellular stroma (H&E stain)

Fig. 5

10× magnification showing nests of epithelial cells and areas of cystic degeneration

Fig. 6

20× magnification showing myxochondroid areas