Grade 4 asbestosis does not extend directly from the respiratory bronchiole to the peripheral lung

ConclusionsGrade 4 asbestosis does not start in the respiratory bronchiole. The presence of a grade 1 lesion is not required for the diagnosis of grade 4 asbestosis.This article is protected by copyright. All rights reserved.

Source: Histopathology - February 21, 2018 Category: Pathology Authors: Yoshinori Kawabata, Takahiko Kasai, Yoichiro Kobashi, Kunimitsu Kawahara, Toshimasa Uekusa, Kazuyoshi Kurashima, Yoshihiko Shimizu Tags: Original Article Source Type: research