A 16-year-old teenager was referred for a chest soft tissues ultrasound due to the lesion on the lateral surface of the chest, with which he has been observed, if I understood everything correctly, for several years, according to his words, ultrasound and X-rays had already been performed earlier (MRI was not performed), and doctors called this lesion a cyst.
In the projection of a lesion visible to the naked eye on the right lateral surface of the chest, an intramuscular, heterogeneous, hypoechoic, oval-shaped lesion up to 4 x 4 x 2 cm in size is visualized on ultrasound; at the CFM the blood flow is visualized along the posterior surface of the lesion with arterial type in the spectral mode (differential diagnosis: lipoma, schwannoma, etc.).