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New Observations in Scintigraphy of Subdural and Extradural Hematomas

Mount Sinai Medical Center and The University of Miami School of Medicine, Miami, Florida

Correspondence: For reprints contact: William M. Smoak, MD, Div. of Nuclear Medicine, Mount Sinai Medical Ctr, 4300 Alton Road, Miami Beach, FL 33140.

ABSTRACT

Static radionuclide images of subacute subdural hematomas demonstrate significant variations in findings over a 3-hr period in the same patient. The lesion can appear, disappear, and reconstitute in an entirely different pattern. This transformation has not appeared in extradural hematomas, and may provide a differential diagnostic sign. In patients with a clinical history or physical findings suspicious for these intracranial hematomas, immediate and sequential delayed static imaging is recommended.