case_images: PMC9445419_01
case_images: Imaging of metastasizing leiomyoma. Enhanced MRI revealed soft tissue signal mass shadows in the outflow tract of the right ventricle.
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case_images: PMC9445419_01_fsurg-09-991558-g001.jpg
case_images: F1
case_images: Cardiac plain scan and enhanced MRI showed soft tissue signal mass shadows in the outflow tract of the right ventricle (Figure 1).
case_images: Macropathology of metastasizing leiomyoma. The leiomyoma appeared as a solid, tough, grayish-white tubercle with no exact capsule.
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case_images: PMC9445419_01_fsurg-09-991558-g002.jpg
case_images: F2
case_images: On histopathologic examination, the tumor appeared as a grayish-white tubercle, with no exact capsule; it was solid and tough and measured 3 cm x 3 cm x 1.5 cm in size (Figure 2).
case_images: Histological examination (HE) of metastasizing leiomyoma. (A,B) The spindle cell tumor showed clear boundaries, mild cell morphology, fascicular arrangement, and no mitotic figures (H&E staining, A: x100, B: x400).
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case_images: PMC9445419_01_fsurg-09-991558-g003.jpg
case_images: F3
case_images: Under the microscope, the spindle cells within the tumor showed clear boundaries, mild cell morphology, fascicular arrangement, and no mitotic figures (Figure 3).
case_images: Immunohistochemical (IHC) features of metastasizing leiomyoma. (Envision x 400) The spindle cells expressed desmin (A), caldesmon (B), PR (C), ER (D) and SMA (E). The calculated Ki67 labeling index was less than approximately 2% (F).
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case_images: PMC9445419_01_fsurg-09-991558-g004.jpg
case_images: F4
case_images: Immunohistochemical staining for desmin, caldesmon, ER, PR and SMA was positive, and the Ki-67 index was approximately 2% (Figure 4).