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Localized malignant pleural sarcomatoid mesothelioma misdiagnosed as benign localized fibrous tumor
- Localized malignant pleural sarcomatoid mesothelioma misdiagnosed as benign localized fibrous tumor
- Kim, Kwan-Chang; Hong-Phuc Vo
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- JOURNAL OF THORACIC DISEASE
- 2072-1439; 2077-6624
- vol. 8, no. 6
- Pleura; mesothelioma; lobectomy; computed tomography (CT); pathology
- PIONEER BIOSCIENCE PUBL CO
- SCIE; SCOPUS
- Localized malignant pleural mesothelioma (LMPM) is a rare tumor with good prognosis by surgical resection. We report an atypical case of malignant pleural sarcomatoid mesothelioma (SM) in an asymptomatic 65-year-old woman, who had no history of exposure to asbestos. She presented with a small pleural mass without pleural effusion and was misdiagnosed as a benign localized fibrous tumor (BLFT) on pathologic examination through a surgical tumor specimen. However, seven months later, the patient returned with serious cancerous symptoms. A large recurrent tumor mass was found within the chest wall invading at the old surgical resection site. SM, a subtype of LMPM, was confirmed with histopathogy and immunohistochemisty. In conclusion, malignant pleural mesothelioma (MPM) can present with typical radiologic finding similar to a BLFT, and has a wide histopathologic presentation in biopsy specimen. A thorough pathologic investigation should be attempted even when a pleural mass resembles benign, localized, and small on radiologic studies.
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