Merck Manual

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Spinal meningioma, T13, dog, part B
spinal-meningioma-dog-dorsoventral-view-thomas-sized
Spinal meningioma, T13, dog, part B

    Ventrodorsal view myelogram showing expansion of the right subarachnoid space (golf tee sign) in a dog with spinal meningioma.

Courtesy of Dr. William Thomas.