case_images: PMC11823876_01
case_images: Presenting images of case 1: Coronal short TI inversion recovery (STIR) magnetic resonance image and X-ray demonstrating femoral involvement with diaphyseal lesion and peri-lesional edema.
case_images: JOCR-15-209-g002.jpg
case_images: PMC11823876_01_JOCR-15-209-g002.jpg
case_images: F1
case_images: If there is a recurrence, a mitogen-activated protein kinase kinase (MEK) inhibitor such as cobimetinib may be implemented which target cell growth (Fig. 1).
case_images: PMC11823876_02
case_images: PMC11823876_03
case_images: Presenting image of case 3: Coronal T1-weighted fat-suppressed postcontrast magnetic resonance image of hypoechoic lesion and T2 hyperintense mass.
case_images: JOCR-15-209-g003.jpg
case_images: PMC11823876_03_JOCR-15-209-g003.jpg
case_images: F2
case_images: They follow-up with annual laboratories and monitor clinically (Fig. 2).
case_images: PMC11823876_04
case_images: Presenting images of case 4: Coronal magnetic resonance angiogram depicting numerous aberrant vessels supplying the hypervascular subpectoral masses in patient 3.
case_images: JOCR-15-209-g004.jpg
case_images: PMC11823876_04_JOCR-15-209-g004.jpg
case_images: F3
case_images: Hematology did not have to proceed with therapy (Fig. 3).