PMC4628025_01
HE stain of paraganglioma
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Fig1
The histology was consistent with paraganglioma (Figs. 1, 2).
Immunohistochemistry of glomus vagale tumour showing NSE stating in neuroendocrine cells
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Fig2
The histology was consistent with paraganglioma (Figs. 1, 2).
Anterior mediastinal mass
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Fig3
MRI scan of the abdomen and thorax as a part of screening for paraganglioma follow up. MRI scan revealed the presence of a 4 x 2 cm anterior mediastinal mass (Fig. 3).
Increase in the size of mediastinal mass
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Fig4
This mass had only marginally increased in size during this time (Fig. 4). Two years later her annual scan revealed an increase in the size of mediastinal mass to 5.8 by 3.1 cm (Fig. 4) Whole body metaiodobenzylguanidine (MIBG) scintigraphy showed no uptake in the mass (Fig. 5).
a The histology showed HE (hematoxylin and eosinophil) stained intermediate sized lymphocytes with cytoplamic processes. b Immunochemistry showing Tdt, CD1 and cd5 reactive T lymphocytes
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Fig6
T lymphocytes; TdT, CD1a and CD5 positive (Fig. 6). The histology was consistent with cortical thymoma (WHO type B2).