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Ormond’s Disease – 26 Years of Experience at One Centre

Emilio Pagano

Created on April 21, 2026

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Ormond’s Disease – 26 Years of Experience at One Centre

Università Campus Bio-Medico di RomaLavoro di Emilio Pagano e Giuseppe di Nuzzo

UNA RICERCA DI 26 ANNI

studio sulla malattia di Ormond condotto dall'ospedale Na Homolce di Praga (CZ)
  • Cos'è la malattia di Ormond
  • Eziologia
  • Diagnosi
  • Trattamento clinico- farmaceutico
  • Terapie ed effetti

Cos'è la malattia di Ormond?

(anche detta fibrosi retroperitoneale ideopatica o IRF)

33,7% presenta IgG4-RD

Infiammazione retroperitonealeEziologia poco chiara

1,3 ogni 100.000 persone

>30 IgG4+ per campo ad alto ingrandimento

Incidenzamaschio: femmina= 2:1

IgG4+/IgG+ >40%

Eziologia sconosciuta ma...

  • Irregolarità th2 e tr-reg
  • aumento rilascio citochine (interleuchine)
  • Processo infiammatorio e probabili ostruzioni dovute a IgG4 e TGF- β
  • Infiammazione RP, aneurisma di arterie iliache e aorta addominale, insufficienza renale

Diagnosi

  • Analisi biochimica, immunologica e test microbiologici
  • metodi di imaging (ultrasuoni, PET/TC
  • Screening laboratorio e pannello biochimico
  • Screening per epatite B e C
  • Livelli IgG (IgG1-IgG4)
  • Sedimentazione eritrociti (VES)

135 "pazienti" iniziali

5 avevano un tumore retroperitoneale

5 non presentavano attività di malattia

34 non presentavano malattia di Ormond

8 avevano aneurisma aortico infiammatorio addominale

82 pazienti con malattia di Ormond

25 con malattie autoimmuni associate

22 con Anticorpi antinucleo

53 pazienti con ostruzione uretrale

28 con livelli elevati di IgG4

Trattamenti utilizzati

Chirurgico

  • Stent uretrale
  • Nefrostomia
  • Stent delle arterie

Terapia immunosoppressiva

  • Corticosteroidi (Azatioprina)
  • Micofenolato Mofetile
  • Rituximab

AZIONE DEI CORTICOSTEROIDI

Trans repressione

Cambio conformazione

Inibizione fattori chiave dell'infiammazione come NF-kb e AP-1 (IL-1, IL-2, IL-6)

Si legano a GR, la proteina chaperon come conseguenza rompe il suo legame con GR

RITUXIMAB

Il Rituximab non entra nella cellula, ma innesca vie di segnalazione intracellulare attraverso il legame con il CD20 (una proteina transmembrana idrofobica sui linfociti B).

Legame con CD20

Marca i linfociti B

Citotossicità cellula mediata

Riduzione linfociti B(Apoptosi)

Attivazione complesso

GRAZIE PER L'ATTENZIONE!

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THANKS!

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