case_images: PMC8192798_01
case_images: Computed tomography (A: axial, C: coronal, D: sagittal) of the chest showed a mass in the posterior mediastinum (red arrow). The enhancement scan (B) was uneven and slightly enhanced.
case_images: fsurg-08-666389-g0001.jpg
case_images: PMC8192798_01_fsurg-08-666389-g0001.jpg
case_images: F1
case_images: Enhanced computed tomography (CT) (Philips, Brilliance ICT CP 200063) of the chest showed a 3.5 x 3.1-cm mass in the posterior mediastinum, and no other lesions were identified in the thoracic cavity (Figure 1).
case_images: (A) Hematoxylin-eosin staining showed that epithelioid angiosarcoma had abundant eosinophilic cytoplasm and vesicular nuclei, with prominent nucleoli (red arrow) (200x). (B) Hematoxylin-eosin staining showed that the schwannoma cells were spindle, with abundant cytoplasm and insignificant nucleoli, which were arranged in a palisade shape (red arrow) (40x). (C) Epithelioid tumor cells stained positive for CD-31 (100x). (D) Spindled schwannian cells were diffusely positive for SOX-10 (200x).
case_images: fsurg-08-666389-g0002.jpg
case_images: PMC8192798_01_fsurg-08-666389-g0002.jpg
case_images: F2
case_images: Pathological examination revealed the presence of angiosarcoma (Figure 2A) and schwannoma (Figure 2B) components. Immunohistochemical staining for cluster of differentiation (CD) 31 (Figure 2C), CD34, EGR, vimentin, SOX-10 (Figure 2D) and S-100 was strongly positive.
case_images: Two months postsurgery, the patient was followed up by chest CT and had no evidence of tumor recurrence.
case_images: fsurg-08-666389-g0003.jpg
case_images: PMC8192798_01_fsurg-08-666389-g0003.jpg
case_images: F3
case_images: Two months post-surgery, the patient returned for chest CT and had no evidence of tumor metastasis or recurrence (Figure 3 and see timeline in Figure 4).
case_images: Timeline of symptoms, investigation, and treatment.
case_images: fsurg-08-666389-g0004.jpg
case_images: PMC8192798_01_fsurg-08-666389-g0004.jpg
case_images: F4
case_images: Two months post-surgery, the patient returned for chest CT and had no evidence of tumor metastasis or recurrence (Figure 3 and see timeline in Figure 4).