PMC6444777_01
(a) FDG positron emission tomography images showing avid tumour in the
mediastinum. (b) Contrast-enhanced computed tomography of the thorax. (c)
T2-weighted magnetic resonance image coronal section, illustrating a close
relationship to the pulmonary artery. Arrows indicate tumour.
10.1177_2050313X19839530-fig1.jpg
PMC6444777_01_10.1177_2050313X19839530-fig1.jpg
fig1-2050313X19839530
Initial investigation with F-fluorodeoxyglucose (FDG) positron emission tomography (PET) discovered an intense uptake in the left lateral aspect of the aortic root inferior to the pulmonary artery (Figure 1(a)). This was further clarified using contrast-enhanced computed tomography and cardiac magnetic resonance imaging (MRI; Figure 1(b) and (c)).
Partially excised tumour, showing close adherence to the left circumflex
artery (LCx). The aorta (Ao) and pulmonary artery (P) have been retracted.
Left main coronary artery (LMCA).
10.1177_2050313X19839530-fig2.jpg
PMC6444777_01_10.1177_2050313X19839530-fig2.jpg
fig2-2050313X19839530
The aortic cross clamp and cardiopulmonary bypass times were 27 and 79 min, respectively (Figure 2).
(a) Macroscopic photograph of the tumour. (b) Haematoxylin and eosin (40x
magnification)-stained section showing tumour extending through its capsule.
(c) 100x Magnified H&E stain highlighting a markedly atypical cell. (d)
Immunohistochemical analysis revealing positivity for synaptophysin stain
(100x magnification).
10.1177_2050313X19839530-fig3.jpg
PMC6444777_01_10.1177_2050313X19839530-fig3.jpg
fig3-2050313X19839530
Macroscopically, the specimen consisted of a 30 mm x 30 mm x 30 mm tan-coloured nodule weighing 14 g (Figure 3(a)). The capsule was seen to be infiltrated by tumour cells (Figure 3(b)).