case_images: PMC3975750_01
case_images: Coronal view of the chest CT showing a large right hilar mass.
case_images: cro-0007-0139-g01.jpg
case_images: PMC3975750_01_cro-0007-0139-g01.jpg
case_images: F1
case_images: The CT scan revealed a smooth, lobulated 6.5-cm mass in the right hilum (fig. 1).
case_images: 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.
case_images: cro-0007-0139-g02.jpg
case_images: PMC3975750_01_cro-0007-0139-g02.jpg
case_images: F2
case_images: 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).
case_images: a axial view of the right hilar mass prior to treatment. b Axial view of the right hilar mass after 2 cycles of ifosfamide.
case_images: cro-0007-0139-g03.jpg
case_images: PMC3975750_01_cro-0007-0139-g03.jpg
case_images: F3
case_images: The patient's follow-up chest CT after delivery showed approximately 30% decrease in the size of the primary mass (fig. 3a, b).