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Previous Volume 330:642-643 March 3, 1994 Number 9 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: Pell and colleagues (Sept. 23 issue)¹ used transesophageal echocardiography to visualize echogenic masses in a patient undergoing fixation of a femoral fracture with an intramedullary nail. They assumed these masses were embolic fat on the basis of the postoperative development of the fat embolism syndrome in their patient.

Although there is ample evidence to support the diagnosis of fat embolism syndrome, the echogenic material seen with echocardiography may not be fat. Current clinical echocardiographic techniques do not permit the characterization of tissue: any material whose density differs from that of blood can produce echoes. Without analysis of . . . [Full Text of this Article]

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