<unk>  is a<unk>  (long-lasting) inflammatory condition affecting the salivary gland. Relatively rare in occurrence, this condition is benign, but presents as hard, indurated and enlarged masses that are clinically indistinguishable from salivary gland neoplasms or tumors. It is now regarded as a manifestation of IgG4-related disease. Involvement of the submandibular glands is also known as Küttner's tumor, named after Hermann Küttner (1870–1932), a German Oral and Maxillofacial Surgeon, who reported four cases of submandibular gland lesions for the first time in 1896.
Chronic sclerosing sialadenitis
Tuberculous gumma
Necrotizing sialometaplasia
Laryngeal papillomatosis
Denture-related stomatitis
Acute necrotizing ulcerative gingivitis
Idiopathic facial aseptic granuloma
Airsacculitis