Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0034065 (pulmonary embolism)
 14,979 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Pulmonary complications from cocaine use can range from bronchospasm to vasospasm leading to pulmonary infarction. Profound vasospasm may also lead to perfusion defects presenting as pulmonary embolism on ventilation-perfusion scan. A 65-year-old patient with a past medical history of substance abuse and chronic kidney disease presents to the emergency department with sudden-onset chest pain and shortness of breath. Ventilation-perfusion scan revealed filling defect most notably in the lingual lobe. He was later discharged on warfarin for the management of pulmonary embolism. The patient presented to the emergency department 2 weeks later with similar complaints; the international normalized ratio was subtherapeutic, and urine drug screen was positive for cocaine. Repeat ventilation-perfusion scan revealed no filling defects. Follow-up bilateral venous Doppler of lower extremities and D-dimer were within normal limits.
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PMID:Cocaine-Induced Ventilation/Perfusion Mismatch Mimicking Pulmonary Embolism. 3205 44

Large cavitary pulmonary infarctions are extremely rare. Here, we report an unusual case of large pulmonary infarction due to pulmonary embolism (PE). This was complicated by secondary infection with Actinomyces leading to cavitary abscess formation. The patient had minimal non-specific symptoms despite extensive involvement and was treated with lobectomy, antibiotics, and anticoagulation, with expedited recovery. This case depicts a rare association between PE/pulmonary infarction and pulmonary actinomycosis. Furthermore, it highlights a high index of suspicion needed to diagnose these two conditions in low-risk individuals without traditional risk factors.
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PMID:An Unusual Case of Cavitary Lung Lesion and a Brief Review of Literature. 3275 14

Behcet's disease is a chronic inflammatory multi-systemic vasculitis. Recurrent oral and genital aphthous ulcers, uveitis, arthritis, arterial aneurysms, venous thrombosis, gastrointestinal system lesions and skin lesions can be seen. Large, medium or small arteries and veins may be involved. While venous lesions cause occlusion, arterial lesions can cause both occlusion and aneurysm. Major forms of pulmonary involvement include pulmonary artery aneurysm, arterial and venous thrombosis, pulmonary infarction, recurrent pneumonia, and pleurisy. In Behcet's disease, pulmonary thromboembolism (PE) is often associated with endothelial damage. Neutrophils play an important role in the pathogenesis of thrombosis. Coagulation components such as fibrinogen, thrombin, factor Xa and factor VIIa activate the inflammatory cascade and induce vascular events. It is important to understand the pathogenesis of vascular events in determining the effective treatment strategy. Here we present a patient with Behcet's disease who was presented with pulmonary embolism and was investigated for the etiology of thrombosis.
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PMID:Behcet's disease presenting with pulmonary thromboembolism. 3329 33


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