case_images: PMC5322422_01
case_images: Anterior-posterior (AP) chest x-ray demonstrating marked enlargement of the cardiothymic silhouette.
case_images: CRIPE2017-7628946.001.jpg
case_images: PMC5322422_01_CRIPE2017-7628946.001.jpg
case_images: fig1
case_images: An anterior-posterior (AP) chest X-ray (Figure 1) performed in the emergency department demonstrated marked enlargement of the cardiothymic silhouette, which prompted further evaluation.
case_images: CT of chest/abdomen/pelvis demonstrated a homogeneously enhancing anterior mediastinal mass which maintained thymic contour, with mass effect upon the vessels and airway.
case_images: CRIPE2017-7628946.002.jpg
case_images: PMC5322422_01_CRIPE2017-7628946.002.jpg
case_images: fig2
case_images: A CT of chest/abdomen/pelvis (Figure 2) demonstrated a homogeneously enhancing anterior mediastinal mass which maintained thymic contour, with mass effect upon the vessels and airway.
case_images: Representative histology. Comparison of core biopsy specimen from the patient's mediastinal mass with histology of normal thymus. The 2x view demonstrates overall preservation of cortical and medullary regions, with the suggestion of increased RBC's in the patient sample compared to the normal specimen. This is better seen on the 40x view (arrows) and is consistent with hemorrhage into the thymic tissue. Asterisks mark normal Hassall's corpuscles, which can be seen in normal tissue and in cases of thymic hyperplasia. Cytokeratin staining in the patient is of normal intensity and distribution, ruling out the differential diagnosis of thymoma.
case_images: CRIPE2017-7628946.003.jpg
case_images: PMC5322422_01_CRIPE2017-7628946.003.jpg
case_images: fig3
case_images: Representative histology of the mass is shown in Figure 3.