Pathological features of connective tissue disease-associated interstitial lung disease in transbronchial cryobiopsies.

Autor: Churg A; Department of Pathology, University of British Columbia, and Vancouver General Hospital, Vancouver, BC, Canada., Poletti V; GB Morgagni Hospital and DIMEC, University of Bologna-Forli, Bologna-Forli, Italy., Ravaglia C; GB Morgagni Hospital and DIMEC, University of Bologna-Forli, Bologna-Forli, Italy., Matej R; Department of Pathology and Molecular Medicine, Third Faculty of Medicine of Charles University and Thomayer University Hospital, Prague, Czech Republic., Vasakova MK; Department of Respiratory Medicine, First Faculty of Medicine of Charles University and Thomayer University Hospital, Prague, Czech Republic., Hornychova H; The Fingerland Department of Pathology, Faculty of Medicine in Hradec Králové and University Hospital Hradec Kralove, Charles University, Hradec Králové, Czech Republic., Stewart B; Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, USA., Patel D; Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA., Duarte E; Carolinas Pathology Group, Atrium Health System, Gainesville, FL, USA., Gomez Manjarres DC; Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA., Mehta HJ; Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA., Vaszar LT; Department of Medicine, Division of Pulmonary Medicine, Mayo Clinic, Phoenix, AZ, USA., Tazelaar H; Department of Laboratory Medicine and Pathology, Mayo Clinic, Phoenix, AZ, USA., Wright JL; Department of Pathology, St Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.
Jazyk: angličtina
Zdroj: Histopathology [Histopathology] 2025 Jan; Vol. 86 (2), pp. 260-267. Date of Electronic Publication: 2024 Sep 02.
DOI: 10.1111/his.15311
Abstrakt: Aim: Transbronchial cryobiopsies are increasingly used for the diagnosis of interstitial lung disease (ILD), but there is a lack of published information on the features of specific ILD in cryobiopsies. Here we attempt to provide pathological guidelines for separating usual interstitial pneumonia (UIP) of idiopathic pulmonary fibrosis (IPF), fibrotic hypersensitivity pneumonitis (FHP) and connective tissue disease-associated ILD (CTD-ILD) in cryobiopsies.
Methods: We examined 120 cryobiopsies from patients with multidisciplinary discussion (MDD)-established CTD-ILD and compared them to a prior series of 121 biopsies from patients with MDD-established IPF or FHP.
Results: A non-specific interstitial pneumonia (NSIP) pattern alone was seen in 36 of 120 (30%) CTD-ILD, three of 83 (3.6%) FHP and two of 38 (5.2%) IPF cases, statistically favouring a diagnosis of CTD-ILD. The combination of NSIP + OP was present in 29 of 120 (24%) CTD-ILD, two of 83 (2.4%) FHP and none of 38 (0%) IPF cases, favouring a diagnosis of CTD-ILD. A UIP pattern, defined as fibroblast foci plus any of patchy old fibrosis/fibrosis with architectural distortion/honeycombing, was identified in 28 of 120 (23%) CTD-ILD, 45 of 83 (54%) FHP and 27 of 38 (71%) IPF cases and supported a diagnosis of FHP or IPF. The number of lymphoid aggregates/mm 2 and fibroblast foci/mm 2 was not different in IPF, CTD-ILD or FHP cases with a UIP pattern. Interstitial giant cells supported a diagnosis of FHP or CTD-ILD over IPF, but were infrequent.
Conclusions: In the correct clinical/radiological context the pathological findings of NSIP, and particularly NSIP plus OP, favour a diagnosis of CTD-ILD in a cryobiopsy, but CTD-ILD with a UIP pattern, FHP with a UIP pattern and IPF generally cannot be distinguished.
(© 2024 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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