PMC7744481_01
(A) Non-enhanced abdominal MRI showed that there was an occupying mass in the right lobe of liver, the boundary of tumor was unclear; (B) enhanced abdominal MRI indicated mild heterogeneous enhancement of solid components around the tumor and the size of the tumor was ~2.7 x 2.8 x 3 cm; (C) a second non-enhanced abdominal MRI showed that the mass in the right lobe of liver grew larger, and the size was ~3 x 3.5 x 3.5 cm; (D) a second enhanced abdominal MRI showed the low density of the cyst was seen in the tumor, which was considered to be accompanied by hemorrhage.
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F1
The abdominal MRI revealed an enhanced lesion in the right lobe of the liver, with a size of ~2.7 x 2.8 x 3 cm (Figures 1A,B). After 3 months, a second abdominal MRI showed that the mass in the right lobe of the liver grew larger, and the size was ~3 x 3.5 x 3.5 cm (Figures 1C,D).
Thoracic MRI and CT scan showed the size of the lesion to the left of the T3 (A-F) vertebral body was ~3.7 x 5.3 cm. Arrow indicates the location of tumor.
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F2
T3 vertebral body. The bony mass expanded along the left of the T3 vertebral body, with retropulsion toward the spinal canal and compression of the spinal cord at this level (Figures 2A-C). The thoracic CT scans showed that the size of the lesion to the left of the T3 vertebral body was ~3.7 x 5.3 cm (Figures 2D-F). The Tomita score was 4, and the Tokuhashi score was 9-11, indicating long-term control requiring wide or marginal excision.
(A) Haematoxylin and eosin (HE) stain of thoracic mass showed compact cells with some prominent dilated vessels; (B) immunohistochemical study demonstrated the expression of CD34; (C) the immunohistochemical study showing positive nuclear reactivity of STAT6; (D) HE stains of the liver mass showed compact tumor cells with some prominent dilated vessels; (E) immunohistochemical study demonstrated the expression of CD34; (F) immunohistochemical study showed positive nuclear reactivity of STAT6.
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F3
Then, the diagnosis of SFT was suggested by immunohistochemistry performed on the spinal mass. The immunohistochemical study demonstrated CD34(+) and STAT6(+) (Figures 3A-C). The patient had an excellent post-operative recovery. The diagnosis of SFT was confirmed with the expression of CD34 and nuclear expression of STAT6 by immunohistochemistry performed on the liver mass (Figures 3D-F).
(A) Post-operative radiograph showed fixation of the thoracic spine from T2 to T4; (B) T2-weighted sagittal MRI showed no disease recurrence at T3; (C) axial MRI showed no disease recurrence at T3; (D) abdominal MRI showed no disease recurrence at the liver.
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F4
T2-4 pedicular screw fixation (Figure 4A). Two-year follow-up thoracic MRI and abdominal CT revealed no disease recurrence at the T3 (Figures 4B,C) and the liver (Figure 4D).