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Muscle contusion tears and hematomas. (A) Partial tear of the semimembranosus muscle (SM) close to its aponeurosis (∗), with an anechoic hematoma
(arrow) (transversal axis), B = biceps muscle. (B) Rupture of the distal portion of the medial gastrocnemius (MG) that is retracted proximally; a fluid
collection (arrow) distal to the avulsed medial head is observed (longitudinal axis). (C) Extensive contusion of the vastus intermedius (VI) muscle, with a
large and heterogeneous hematoma (the tear is measured by the dotted line) (longitudinal axis). (D) Contusion over the VI and lateralis (VL) muscles in
the anterolateral portion of the thigh, demonstrated by an ill-defined hyperechoic area (arrows) (longitudinal axis). This aspect is related to edema and
hemorrhagic changes.
Source: Musculoskeletal Ultrasound, Basic Musculoskeletal Imaging
Citation: Tehranzadeh J, MD. Basic Musculoskeletal Imaging; 2016 Available at: http://mhmedical.com/ Accessed: April 05, 2017
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