Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings

<b>Background and Clinical Significance:</b> Solitary fibrous tumors (SFTs) arising from the lung parenchyma without any relation to the pleura are rare. <b>Case Presentation:</b> We report a case of highly aggressive intraparenchymal SFT of the lung in a 52-year-old woman wi...

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Main Authors: Jeong Joo Woo, Jin Kyung An
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Reports
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Online Access:https://www.mdpi.com/2571-841X/8/2/78
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author Jeong Joo Woo
Jin Kyung An
author_facet Jeong Joo Woo
Jin Kyung An
author_sort Jeong Joo Woo
collection DOAJ
description <b>Background and Clinical Significance:</b> Solitary fibrous tumors (SFTs) arising from the lung parenchyma without any relation to the pleura are rare. <b>Case Presentation:</b> We report a case of highly aggressive intraparenchymal SFT of the lung in a 52-year-old woman with rapid distant metastasis to the brain, lungs, and bones within one year post-operation. Chest computed tomography (CT) showed a 5.5 cm-sized, round, but partially lobulated mass with ambiguous enhancement in the right upper lobe. Positron emission tomography/computed tomography (PET/CT) demonstrated strong homogeneous FDG uptake. Unfortunately, the patient succumbed to the disease within one year of diagnosis. <b>Conclusions:</b> Among intrapulmonary SFT, the cellular variant may appear as a cystic mass due to accompanying hemorrhage, coagulation necrosis, and myxoid degeneration. In the absence of mediastinal metastatic adenopathy, it can be mistaken for a benign cystic mass, making PET/CT findings a crucial tool for suggesting a malignancy. Furthermore, as cellular-type intrapulmonary SFT can exhibit aggressive distant metastasis, understanding the CT and PET/CT findings in this condition is essential for accurate diagnosis and treatment planning.
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spelling doaj-art-7a107a22c6c24f9681d45c6a18aec6e02025-08-20T03:29:43ZengMDPI AGReports2571-841X2025-05-01827810.3390/reports8020078Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT FindingsJeong Joo Woo0Jin Kyung An1Department of Radiology, Nowon Eulji University Hospital, Eulji University School of Medicine, Seoul 01830, Republic of KoreaDepartment of Radiology, Nowon Eulji University Hospital, Eulji University School of Medicine, Seoul 01830, Republic of Korea<b>Background and Clinical Significance:</b> Solitary fibrous tumors (SFTs) arising from the lung parenchyma without any relation to the pleura are rare. <b>Case Presentation:</b> We report a case of highly aggressive intraparenchymal SFT of the lung in a 52-year-old woman with rapid distant metastasis to the brain, lungs, and bones within one year post-operation. Chest computed tomography (CT) showed a 5.5 cm-sized, round, but partially lobulated mass with ambiguous enhancement in the right upper lobe. Positron emission tomography/computed tomography (PET/CT) demonstrated strong homogeneous FDG uptake. Unfortunately, the patient succumbed to the disease within one year of diagnosis. <b>Conclusions:</b> Among intrapulmonary SFT, the cellular variant may appear as a cystic mass due to accompanying hemorrhage, coagulation necrosis, and myxoid degeneration. In the absence of mediastinal metastatic adenopathy, it can be mistaken for a benign cystic mass, making PET/CT findings a crucial tool for suggesting a malignancy. Furthermore, as cellular-type intrapulmonary SFT can exhibit aggressive distant metastasis, understanding the CT and PET/CT findings in this condition is essential for accurate diagnosis and treatment planning.https://www.mdpi.com/2571-841X/8/2/78solitary fibrous tumorlungscomputed tomographyPET/CT
spellingShingle Jeong Joo Woo
Jin Kyung An
Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings
Reports
solitary fibrous tumor
lungs
computed tomography
PET/CT
title Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings
title_full Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings
title_fullStr Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings
title_full_unstemmed Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings
title_short Highly Aggressive Intraparenchymal Solitary Fibrous Tumor of the Lung with Distant Metastasis: A Case Report and Review of CT and PET/CT Findings
title_sort highly aggressive intraparenchymal solitary fibrous tumor of the lung with distant metastasis a case report and review of ct and pet ct findings
topic solitary fibrous tumor
lungs
computed tomography
PET/CT
url https://www.mdpi.com/2571-841X/8/2/78
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