Abstract
BackgroundPulmonary artery intimal sarcoma (PAIS) is a rare malignant tumor that was usually misdiagnosed as chronic pulmonary thromboembolism.Case presentationWe previously reported a solitary fibrous tumor in the pulmonary artery presented with acute pulmonary embolism, which was identified by 99mTc-Galacto-RGD2 imaging. However, this patient had a recurrence in situ two-year after surgery, post-operative pathology revealed pulmonary artery intimal sarcoma. At one-year post-operation, 18F-FDG PET/CT was performed for exclusion of tumor metastasis, which showed FDG avid lesion in the T5, T10, and L5 vertebral bodies, as well as in bilateral ilium and right ischium.ConclusionsThis is the first longitudinal observation of a solitary fibrous tumor (SFT) development into a pulmonary artery intimal sarcoma (PAIS) and presented with multiple bone metastases.
Highlights
Pulmonary artery intimal sarcoma (PAIS) is a rare malignant tumor that may be misdiagnosed as chronic pulmonary thromboembolism [1, 2]
We previously reported a solitary fibrous tumor in the pulmonary artery presented with acute pulmonary embolism, which was identified by 99mTc-Galacto-RGD2 imaging [3]
This patient had a recurrence in situ two-year after surgery, post-operative pathology revealed pulmonary artery intimal sarcoma
Summary
This is the first longitudinal observation of a solitary fibrous tumor (SFT) development into a pulmonary artery intimal sarcoma (PAIS) and presented with multiple bone metastases.
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