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Article in Japanese
Abstract
Case Report
Case report: Pulmonary Langerhans cell histiocytosis suspected to be appeared after resumption of smoking
Hiromi Watanabea Toshio Kubob Masahiro Tabatab Satoru Senooa Yusuke Hatab Katsuyuki Kiuraa
aDepartment of Allergy and Respiratory Medicine, Okayama University Hospital
bCenter for Clinical Oncology, Okayama University Hospital
ABSTRACT
A 68-year-old man who had smoked cigarettes for 45 years underwent surgical treatment for tongue cancer in 2012, after which he stopped smoking. Chest CT scans in Feb 2015 showed multiple nodules in both lungs. Although these nodules were suspected to be lung metastases from the tongue cancer, a CT-guided biopsy confirmed pulmonary Langerhans cell histiocytosis (PLCH). Further inquiry revealed that the patient had resumed smoking. He stopped smoking again, and the nodules disappeared. Adult PLCH is highly related to smoking, and most cases develop with initial cigarette use. We speculated that the patient had developed PLCH after he resumed smoking.
KEYWORDS
Pulmonary Langerhans cell histiocytosis smoking resumption
Received 5 Sep 2016 ／ Accepted 3 Apr 2017
AJRS, 6(4): 255-259, 2017
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