Lipoid pneumonia can present as a PET-positive lung nodule and should be considered in the differential diagnosis and workup of a solitary pulmonary nodule.

occluded by thrombus from the bifurcation to the coeliac axis. Both renal arteries, the superior mesenteric, and the right vertebral arteries were thrombosed with the kidneys, small bowel, and part of the cerebellum infarcted. No venous thrombosis was present. The patient also had gall stones. CommentOestrogen-containing contraceptives are well known to cause abnormalities of coagulation1 and venous thromboembolic disorders.2 Arterial thrombosis is less often encountered, though cerebral,2 coronary,2 mesenteric, $ and vertebral artery thromboses-' are described. But these events are relatively rare and usually occur singly. Our patient is unusual in that she experienced widespread large artery thrombosis without venous involvement, leading to ischaemia of the legs, infarction of kidneys and small bowel, and the lateral medullary syndrome. In the absence of other known factors influencing coagulation the oral contraceptive use is thought to be significant. Enhancing her susceptibility to oestrogen-associated thromboses would be her smoking habit, age of 33 years, and taking the pill for over five years.2 Two further adverse factors were obesity and hypertension.

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