discussion
in 20-25% of patients with sarcoidosis, fibrosis results from
healing of granulomas.
as fibrosis develops, irregular reticular opacities,
including irregular septal thickening,
often become a prominent feature.
progressive fibrosis leads to abnormal central
conglomeration of parahilar bronchi
and vessels, associated with masses of fibrous
tissue, typically most marked in the
upper lobes. this finding is frequently associated
with bronchial dilation (i.e. traction bronchiectasis);
the only other diseases that commonly result in this
appearance are
silicosis, tuberculosis, and talcosis. posterior
displacement of the main and upper
lobe bronchi indicating volume loss in the posterior
segments of the upper lobes is
commonly present. findings of fibrosis in patients
with end-stage sarcoidosis
lack the typical subpleural, posterior, lower lobe
predominance seen in patients
with idiopathic pulmonary fibrosis. a central and
upper lobe predominance of
fibrosis suggests sarcoidosis.
现在我所疑惑的是:虽然end-stage sarcoidosis 纤维化以
上叶肺门支气管血管束纤维块为特征,纵隔内淋巴结肿大为
对称性。该病以右侧为主,但能完全除外结节病吗???
[本贴已被 wchgh 于 2004-3-19 12:31:30 修改过] |