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Abstract
Case Report
Early Image of Squamous Cell Carcinoma in the Peripheral Lung Field on High-Resolution CT Scan
Tomoki Kimura1) Fumihiro Asano2) Keiko Wakahara1) Takamasa Oohashi1) Hiroshi Mizutani1) Joe Shindoh1) Michiaki Horiba1)
1)Department of Respiratory Medicine, Ogaki Municipal Hospital,
4-86 Minaminokawa-cho, Ogaki, Gifu 503-8502, Japan
2)Department of Internal Medicine, National Health Insurance Sekigahara Hospital,
2490-29 Sekigahara-cho, Fuwa-gun, Gifu 503-1514, Japan
ABSTRACT
A 65-year-old man presented with the shadow of an abnormal nodule in the left lower lung field in a chest radiograph. We diagnosed this as an old inflammatory change because prior chest radiographs had shown the same nodule in the same lung field. However, a high-resolution CT scan showed a hazy ground-glass opacity (GGO) near the nodule. Two years later, this GGO changed into a small nodule. After a CT-guided transbronchial lung biopsy performed by ultra-thin fiberoptic bronchoscopy, we diagnosed this nodule as squamous cell carcinoma. We speculated that the hazy GGO detected in the peripheral lung field on high-resolution CT two years before diagnosis may have been an early image of squamous cell carcinoma.
KEYWORDS
Squamous cell carcinoma Early cancer High-resolution CT (HRCT) Ground glass opacity (GGO) CT guided transbronchial lung biopsy
Received 平成13年11月8日
JJRS, 40(11): 884-888, 2002
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