Kuttner tumor

Introduction:

This tumor was first described by Kuttner more than a century ago. It is one of the common diseases involving the submandibular salivary gland. This is a benign lesion of unknown etiology. It is also known as chronic sclerosing sialadenitis. It is also known as cirrhosis of submandibular gland. Usually this condition is mistaken for malignant lesion clinically because of its presentation as a hard and non tender mass.

WHO recognizes this condition as a separate entity in its classification of salivary gland tumors.

Probable causes include:

1. Sialolithiasis

2. Dysfunction of the secretory function of the gland

3. Autoimmune reaction.

Histology:

It is characterized by periductal fibrosis, dense lymphocytic infiltration with lymphoid follicle formation, loss of acini with marked sclerosis of salivary gland.

FNAC is the simple, cost effective investigation to identify this condition. Aspirates were paucicellular / moderately cellular. Tubal structures could be seen enveloped by bundle of collagen tissues. Lymphocytic infiltration could also be seen.

Males and females are equally affected. Unilateral involvement is common. Most of the affected patients are adults. These patients have recurrent pain, discharge and swelling of the gland associated with eating.