Application of a pattern-based approach to histological diagnosis in very early onset IBD (VEO-IBD) in a multicentric cohort of children with emphasis on monogenic disease with IBD-like morphology

© 2023 The Authors. Histopathology published by John Wiley & Sons Ltd..

AIMS: Very early-onset inflammatory bowel disease (VEO-IBD) is a clinical umbrella term referring to IBD-like symptoms arising in children before the age of 6 years, encompassing both 'pure' IBD, such as ulcerative colitis (UC) and Crohn's disease (CD) and monogenic diseases (MDs), the latter often involving genes associated with primary immunodeficiencies. Moreover, histological features in gastrointestinal (GI) biopsies in MD can also have IBD-like morphology, making differential diagnosis difficult. Correct diagnosis is fundamental, as MDs show a more severe clinical course and their inadequate/untimely recognition leads to inappropriate therapy.

METHODS AND RESULTS: Biopsy samples from the lower and upper GI tract of 93 clinically diagnosed VEO-IBD children were retrospectively selected in a multicentre cohort and histologically re-evaluated by 10 pathologists blinded to clinical information. Each case was classified according to morphological patterns, including UC-like; CD-like; enterocolitis-like; apoptotic; eosinophil-rich; and IBD-unclassified (IBD-U). Nine (69%) MD children showed IBD-like morphology; only the IBD-U pattern correlated with MD diagnosis (P = 0.02) (available in 64 cases: 51 non-MD, true early-onset IBD/other; 13 MD cases). MD patients showed earlier GI symptom onset (18.7 versus 26.9 months) and were sent to endoscopy earlier (22 versus 37 months), these differences were statistically significant (P < 0.05). Upper GI histology was informative in 37 biopsies.

CONCLUSIONS: The diagnosis of the underlying cause of VEO-IBD requires a multidisciplinary setting, and pathology, while being one of the fundamental puzzle pieces, is often difficult to interpret. A pattern-based histological approach is therefore suggested, thus aiding the pathologist in VEO-IBD reporting and multidisciplinary discussion.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:84

Enthalten in:

Histopathology - 84(2024), 3 vom: 27. Jan., Seite 440-450

Sprache:

Englisch

Beteiligte Personen:

Parente, Paola [VerfasserIn]
Macciomei, Maria C [VerfasserIn]
Buccoliero, Anna M [VerfasserIn]
Santoro, Luisa [VerfasserIn]
Cafferata, Barbara [VerfasserIn]
Bifano, Delfina [VerfasserIn]
Ferro, Jacopo [VerfasserIn]
Vanoli, Alessandro [VerfasserIn]
Fassan, Matteo [VerfasserIn]
Angerilli, Valentina [VerfasserIn]
Alaggio, Rita [VerfasserIn]
Mastracci, Luca [VerfasserIn]
D'Armiento, Maria [VerfasserIn]
Grillo, Federica [VerfasserIn]
Francalanci, Paola [VerfasserIn]

Links:

Volltext

Themen:

Apoptotic colitis
Crohn's disease
Enterocolitis
Eosinophilic colitis
IBD
Journal Article
Monogenic disease
Ulcerative colitis
VEO-IBD

Anmerkungen:

Date Completed 10.01.2024

Date Revised 10.01.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/his.15084

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM363956271