PMC9713241_01
Preoperative MRI of right femur demonstrating large femoral ltyic mass. (A) Coronal view in T1 sequence (left). (B) Coronal view in T1 FAT-SAT sequence with algorithm (right).
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An MRI demonstrated a large mass measuring 9.7 x 6.7 x 4.5 cm, centered in the right proximal femur with a large extracortical soft tissue component extending posteriorly that measured 4.3 x 3.4 cm ( Figures 1A, B ).
(A) Pre-treatment CT abdomen and pelvis demonstrating malignant pelvic lymph node involvement (top left). (B) Post-treatment CT abdomen and pelvis from January 2022 demonstrating resolution of pelvic lymphadenopathy (top right). (C) Pre-treatment CT chest demonstrating lung metastases (bottom left). (D) Post-treatment CT chest from January 2022 demonstrating regressed lung nodules (bottom right).
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Staging workup with CT chest/abdomen/pelvis showed multiple lung nodules and a 4.3 x 2.3 cm right pelvic sidewall soft tissue mass suggestive of metastatic disease ( Figures 2A, C ).