Abstract
Solitary endobronchial papillomas (SEPs) are rare benign tumors of the lung, seldom transform to malignancy. This tumor had been reported occasionally manifest like carcinomas histologically. Herein we report 2 cases of SEPs; one is a squamous cell papilloma providing a false impression of interstitial micro-invasion. The other is a mixed squamous cell and glandular papilloma with massive lipid pneumonia gross appearance, and focally resembles adenocarcinoma with lepidic-like pattern on histological examination. A review of associated literatures was provided.
Keywords:
SEP; lung; misdiagnosis; tumor.
MeSH terms
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Adenocarcinoma / chemistry
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Adenocarcinoma / pathology*
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Adenocarcinoma / surgery
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Adenocarcinoma of Lung
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Aged
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Biomarkers, Tumor / analysis
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Biopsy
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Cell Transformation, Neoplastic / chemistry
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Cell Transformation, Neoplastic / pathology*
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Diagnostic Errors*
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Female
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Humans
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Immunohistochemistry
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Lung Neoplasms / chemistry
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Lung Neoplasms / pathology*
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Lung Neoplasms / surgery
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Male
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Middle Aged
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Papilloma / chemistry
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Papilloma / pathology*
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Papilloma / surgery
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Predictive Value of Tests
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Solitary Pulmonary Nodule / chemistry
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Solitary Pulmonary Nodule / pathology*
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Solitary Pulmonary Nodule / surgery
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Tomography, X-Ray Computed