#3 is correct - . Loss of deep muscle "pennate" muscle fibers consistent with a deep contusion of the muscle
This is most likely a deep muscle contusion with irregular display of deep muscle structure over the area of injury
NOTES: A constant theme is that long axis (LAX) and short axis (SAX) views are required. The thought is that the blunt trauma forced the muscle up against the bone resulting in the contusion of the deep section of the muscle. No clear disruptions of the muscle structure could be observed from these images.
email: firstname.lastname@example.org www.msksewi.com 414-687-8587 2234 W. Glenbrook Lane, Mequon, WI 53092