PMC3975750_01
Coronal view of the chest CT showing a large right hilar mass.
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F1
The CT scan revealed a smooth, lobulated 6.5-cm mass in the right hilum (fig. 1).
a H&E staining of a transbronchial specimen revealing broad, sweeping densely cellular fascicles of spindle cell neoplasm infiltrating endobronchial tissue. b Positive IHC staining for Bcl-2. c Negative IHC staining for CD34. d Positive IHC staining for CD99.
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F2
H&E staining of the biopsied specimens revealed malignant spindle cells infiltrating endobronchial tissue (fig. 2a). Immunohistochemistry was positive for CD99 and Bcl-2, but negative for CD34 (fig. 2b-d).
a axial view of the right hilar mass prior to treatment. b Axial view of the right hilar mass after 2 cycles of ifosfamide.
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F3
The patient's follow-up chest CT after delivery showed approximately 30% decrease in the size of the primary mass (fig. 3a, b).