Clinicopathological features of pure mica pneumoconiosis associated with Sjögren syndrome.
BACKGROUND
There are few reports on the clinical, radiologic, and pathologic features of pure mica pneumoconiosis.


METHODS
A case of definite pure mica pneumoconiosis in a rubber factory worker is reported with the clinicopathological findings.


RESULTS
Chest HRCT demonstrated subpleural and peribronchovascular interstitial thickening. The characteristic histologic features were pulmonary fibrosis accompanied by prominent histiocytic granulomas containing giant cells.


CONCLUSIONS
Pure mica pneumoconiosis can be identified by specific radiologic and pathologic findings.
Third Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan. kobahide@me.ndmc.ac.jp
Hideo
H
Kobayashi
Ichiyo
I
Ohara
Soichiro
S
Kanoh
Kazuo
K
Motoyoshi
Shinsuke
S
Aida
Norihiko
N
Kohyama
D000538:Aluminum Silicates / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009784:Occupational Diseases / Q000150:complications* / Q000209:etiology; D016273:Occupational Exposure / Q000009:adverse effects*; D011009:Pneumoconiosis / Q000150:complications* / Q000175:diagnosis / Q000209:etiology; D012859:Sjogren's Syndrome / Q000150:complications*
D000538:Aluminum Silicates; C011934:mica