Description

A 27-year-old, non-obese, non-smoker Caucasian woman with no medical history came to the emergency department, because of vague chest discomfort, shortness of breath and palpitations. Family history was significant only for lung cancer in her father at age 72. ECG showed sinus tachycardia with a rate of 112/min; chest x-ray did not show any evidence of pulmonary or chest pathology. Troponins came back negative. The patient denied using medications and recreational drugs. The patient was presumed to have a panic attack and clonazepam was administered, with resolution of her symptoms within 1 h.

Two weeks later the patient was hospitalised, because of chest pain, shortness of breath and light-headedness. D-dimers came elevated, and CT scan of the chest with contrast showed filling defects in the main posteromedial basal segmental branch of the left lower lobe pulmonary artery and posterior basal segmental branch of the right lower lobe pulmonary artery. The patient was treated with low molecular weight heparin, with a switch to oral warfarin. Lower extremity Doppler ultrasound did not detect any evidence of thrombosis. After a thorough laboratory work-up, the patient was found to have anticardiolipin antibodies, with a confirmation 3 months later. The patient agreed to use warfarin indefinitely (figure 1).

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Figure 1

CT angiography of the chest showing bilateral filling defects in the circulation of pulmonary arteries.

Panic disorder usually presents in a young woman and may mimic diseases with a more ominous prognosis.1 Antiphospholipid syndrome is notorious for a propensity for clotting and is considered to be a risk factor for pulmonary embolism and pulmonary disorders.2