Objective, To propose a practical and reasonable classification of chr
onic suppurative parotitis (CSP) on the basis of the various entities.
Material and Methods, Clinical, laboratory, sialographic, scintigraph
ic, histopathologic (including ultrastructural) study of recurrent par
otid swellings (RPS) was performed in 291 patients over a 10-year peri
od: Results, It is suggested that CSP should be classified into recurr
ent parotitis in childhood (RPC), recurrent parotitis in adults (RPA),
chronic obstructive parotitis (COP) and should be differentiated from
other subdivisions including subclinical Sjogren's syndrome (SCSS), c
hronic parotid swelling of Sjogren's syndrome and sialadenosis with re
trograde infection. RPA is a continuation of recurrent parotid swellin
g from childhood (RPC) to adulthood. Remission can take place spontane
ously in RPC and RPA so that self-conservative therapy is mainly used
for reducing the parotid swellings. COP is recurrent parotid swellings
and/or purulent discharge resulting from various obstructive factors.
Mild COP can recover completely with the use of conservative methods,
severe COP is often resistant to conservative treatment and should be
treated with surgical modality or injection of methyl violet into the
diseased gland. Treatment with methyl violet is considered as a conve
nient and practical method with a definite effect. SCSS is an autoimmu
ne disease and should be treated as systemic disease. Conclusions. Bec
ause there exists confusion in the nomenclature of RPS this revised cl
assification is based on the various entities and can be used as a gui
de in the diagnosis and treatment of RPS.