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Fig. 16A 2-year-old boy with rhabdomyosarcoma of extraocular muscle.
Hypoechoic, conical tumor (short arrows) is seen posterior to eye and
slightly superior to optic nerve (long black arrow). Retinal
detachment is also present (white arrow). Advantages of sonography in
this infant outweigh those of MRI because sedation was avoided with minimal
loss of anatomic information.