Pulmonary intimal sarcoma involving the pulmonary valve and right ventricular outflow tract: A case report and literature review

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Abstract

Introduction:Pulmonary artery intimal sarcoma (PAIS) is a rare and highly aggressive tumor, and approximately 80% of pulmonary cases occur in the pulmonary trunk. We report herein a case of retrograde extension of the sarcoma to the pulmonary valve and right ventricle, which is an uncommon manifestation of this lethal tumor.Patient concerns:A 41-year-old woman was initially diagnosed with pulmonary thromboembolism (PTE) and transferred to our hospital.Diagnosis:Computed tomographic pulmonary angiography (CTPA) showed that there are low-density filling defects in both pulmonary arteries, and the patient was diagnosed with PTE. However, the ultrasonographers considered that the lesion is a space-occupying type that involves the right ventricular outflow tract and pulmonary valve instead of PTE. Postoperative pathology confirmed the diagnosis of PAIS.Interventions:The patient underwent resection of pulmonary artery sarcoma and endarterectomy.Outcomes:During the follow-up via telephone 1 month after discharge, the patient reported to have been feeling well.Conclusion:Owing to the rarity of the disease and its non-specific clinical manifestations, approximately half of the PAIS cases are misdiagnosed or have a delayed diagnosis. Thus, improving our understanding of the disease and facilitating its early diagnosis are essential.

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Xu, R., Zhao, Y., Xu, X., Liu, S., Hu, C., Lv, D., & Wu, H. (2020). Pulmonary intimal sarcoma involving the pulmonary valve and right ventricular outflow tract: A case report and literature review. Medicine (United States). Lippincott Williams and Wilkins. https://doi.org/10.1097/MD.0000000000018813

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