CTICasesIntraparenchymal Solitary Fibrous Tumor of the Lung
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Imaging findings
A patient from Argentina had an abnormal chest x-ray in 2010, revealing a solitary pulmonary nodule on CT. After being lost to follow-up, a repeat scan in 2014 showed that the nodule had increased in size, suggesting a slow-growing lesion. Biopsy confirmed the diagnosis of an intraparenchymal solitary fibrous tumor, which stained positive for CD34.
Key takeaways
This case demonstrates a solitary fibrous tumor (SFT) presenting as a slow-growing intraparenchymal pulmonary nodule. While SFTs are more commonly pleural-based, intraparenchymal lesions are well-documented. The slow growth and CD34 positivity are characteristic features of this type of neoplasm.
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