Table 1: Clinical and pathologic comparison among reported cases of IgG4-related prostatitis.

#AgeEthnicityEvidence of
IgG4-RD
Serum
IgG4
SymptomsClinical
Dx
PSA
(ng/mL)
ProcedureRx with
steroids
Response
to Rx
Time
at Dx

Yoshimura et al., 2006 [9]
165AsianAIP, sclerosing cholangitis, sialadenitis Obstructive urinary symptoms, urinary frequency, enlarged prostateBPHWNLTURPIPO

Nishimori et al., 2007 [8]
264AsianAIP Asymptomatic on admissionBPH<0.01NB+IPost-NB
367Asian Prostate tendernessBPH1.62TURPIPO

Uehara et al., 2008 [10]
465AsianAIP NAPC5.5Radical prostatectomyNAPO*
573AsianAIP Dysuria, prostate enlargement, IPSS: 20SPC7.2NBNAPost-NB
671AsianAIP Dysuria, IPSS: 21ML1.57NB+IPost-NB
755AsianAIP Dysuria, prostate enlargement, IPSS: 12CP0.38NB+IPost-NB
873AsianAIP Dysuria, prostate enlargementSPC5.84NBNAPost-NB
966AsianAIP Dysuria, prostate enlargement, IPSS: 18SPC0.1NB+IPost-NB

Hart et al., 2013 [11]
1055AmericanAIP Enlarged prostate, nocturia, hesitancySPC0.67NB+IPost-NB

Bourlon et al., 2011 [4]
1161Latin-AmericanAIP, sialadenitis, LADWNLObstructive urinary symptoms, prostate enlargement, IPSS: 15BPH0.27–1.19TURPIPO

AIP: autoimmune pancreatitis; BPH: Benign prostatic hyperplasia; Dx: diagnosis; FDG-PET: positron emission tomography with [18F] fluorodeoxyglucose; I: improved; LAD: lymphadenopathy; ML, NA: nonavailable; NB: needle biopsy; PC: prostate cancer; PO: status postoperative; Post-NB: postneedle biopsy; PSA: prostate specific antigen; Rx: treatment; SPC: suspicious for prostate cancer; TURP: transurethral resection of the prostate; WNL: within normal limits. *Concomitant diagnosis of prostate cancer.