A 72-year-old woman came to the emergency department with a tender, swollen left leg. Pitting and a positive Homans sign were noted, and a presumptive diagnosis of deep venous thrombosis (DVT) was initially made.
The patient was hospitalized, and additional history was obtained. The woman had arthritis but no other factors that might precipitate DVT. The patient also told her physician that the problem started “right at 3 o’clock.” Such an acute onset is unusual in DVT.
What else might have caused the symptoms?
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