Abstract

Atypical adenomatous hyperplasia (AAH) is a precursor of lung adenocarcinoma. Pure AAH lesions often manifest as ground glass opacities on computed tomography (CT) scans, and are usually less than 5 mm in diameter. The histological diagnosis of AAH is often made with small biopsies, which raises doubts about the true nature of the whole lung lesion. We reported 4 patients presenting with a solitary pulmonary nodule greater than 5 mm in diameter and with an initial diagnosis of AAH based on CT-guided lung biopsies. Three of the patients who later received surgical resection or lung re-biopsy were ultimately diagnosed as having pulmonary adenocarcinoma. Further gene analyses revealed that all 3 patients with adenocarcinoma harbored epidermal growth factor receptor (EGFR) mutations. Differentiation between AAH and adenocarcinoma is clinically important, particularly with small biopsy specimens or when radiological images highlight the possibility of a more advanced disease status.
Original languageEnglish
Pages (from-to)224-231
Number of pages8
Journal胸腔醫學
Volume30
Issue number4
Publication statusPublished - Aug 1 2015

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Hyperplasia
Biopsy
Lung
Adenocarcinoma
Tomography
Solitary Pulmonary Nodule
Epidermal Growth Factor Receptor
Glass
Adenocarcinoma of lung
Mutation
Genes

Keywords

  • 異形腺瘤性增生
  • 肺腺癌
  • 表皮細胞生長因子接受器
  • atypical adenomatous hyperplasia
  • pulmonary adenocarcinoma epidermal growth factor receptor

Cite this

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title = "Proper Diagnostic Differentiation of Atypical Adenomatous Hyperplasia and Pulmonary Adenocarcinoma",
abstract = "Atypical adenomatous hyperplasia (AAH) is a precursor of lung adenocarcinoma. Pure AAH lesions often manifest as ground glass opacities on computed tomography (CT) scans, and are usually less than 5 mm in diameter. The histological diagnosis of AAH is often made with small biopsies, which raises doubts about the true nature of the whole lung lesion. We reported 4 patients presenting with a solitary pulmonary nodule greater than 5 mm in diameter and with an initial diagnosis of AAH based on CT-guided lung biopsies. Three of the patients who later received surgical resection or lung re-biopsy were ultimately diagnosed as having pulmonary adenocarcinoma. Further gene analyses revealed that all 3 patients with adenocarcinoma harbored epidermal growth factor receptor (EGFR) mutations. Differentiation between AAH and adenocarcinoma is clinically important, particularly with small biopsy specimens or when radiological images highlight the possibility of a more advanced disease status.",
keywords = "異形腺瘤性增生, 肺腺癌, 表皮細胞生長因子接受器, atypical adenomatous hyperplasia, pulmonary adenocarcinoma epidermal growth factor receptor",
author = "Lai, {Kevin S.} and Sey-En Lin and Ming-Syong Zeng and Kai-Ling Lee and Shih-Hsin Hsiao and Chi-Li Chung",
year = "2015",
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pages = "224--231",
journal = "胸腔醫學",
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TY - JOUR

T1 - Proper Diagnostic Differentiation of Atypical Adenomatous Hyperplasia and Pulmonary Adenocarcinoma

AU - Lai, Kevin S.

AU - Lin, Sey-En

AU - Zeng, Ming-Syong

AU - Lee, Kai-Ling

AU - Hsiao, Shih-Hsin

AU - Chung, Chi-Li

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Atypical adenomatous hyperplasia (AAH) is a precursor of lung adenocarcinoma. Pure AAH lesions often manifest as ground glass opacities on computed tomography (CT) scans, and are usually less than 5 mm in diameter. The histological diagnosis of AAH is often made with small biopsies, which raises doubts about the true nature of the whole lung lesion. We reported 4 patients presenting with a solitary pulmonary nodule greater than 5 mm in diameter and with an initial diagnosis of AAH based on CT-guided lung biopsies. Three of the patients who later received surgical resection or lung re-biopsy were ultimately diagnosed as having pulmonary adenocarcinoma. Further gene analyses revealed that all 3 patients with adenocarcinoma harbored epidermal growth factor receptor (EGFR) mutations. Differentiation between AAH and adenocarcinoma is clinically important, particularly with small biopsy specimens or when radiological images highlight the possibility of a more advanced disease status.

AB - Atypical adenomatous hyperplasia (AAH) is a precursor of lung adenocarcinoma. Pure AAH lesions often manifest as ground glass opacities on computed tomography (CT) scans, and are usually less than 5 mm in diameter. The histological diagnosis of AAH is often made with small biopsies, which raises doubts about the true nature of the whole lung lesion. We reported 4 patients presenting with a solitary pulmonary nodule greater than 5 mm in diameter and with an initial diagnosis of AAH based on CT-guided lung biopsies. Three of the patients who later received surgical resection or lung re-biopsy were ultimately diagnosed as having pulmonary adenocarcinoma. Further gene analyses revealed that all 3 patients with adenocarcinoma harbored epidermal growth factor receptor (EGFR) mutations. Differentiation between AAH and adenocarcinoma is clinically important, particularly with small biopsy specimens or when radiological images highlight the possibility of a more advanced disease status.

KW - 異形腺瘤性增生

KW - 肺腺癌

KW - 表皮細胞生長因子接受器

KW - atypical adenomatous hyperplasia

KW - pulmonary adenocarcinoma epidermal growth factor receptor

M3 - Article

VL - 30

SP - 224

EP - 231

JO - 胸腔醫學

JF - 胸腔醫學

SN - 1023-9855

IS - 4

ER -