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. Author manuscript; available in PMC: 2022 Dec 12.
Published in final edited form as: Pediatr Dev Pathol. 2015 Dec 23;18(6):504–511. doi: 10.2350/15-10-1732-OA.1

Figure 4.

Figure 4.

Figure 4.

Figure 4.

Figure 4.

Pleuropulmonary blastoma type II presented in this 3-year-old female as a solid and cystic mass in the right chest. A. The only epithelium in a PPB is the remnant of the cyst lining (x400). B. This field shows the presence of a continuous epithelium of a residual cyst and an expanded stroma composed of uniform malignant small cells (x200). C. Focus of anaplastic cells are identified among the primitive malignant cells (x400). D. p53 immunostaining is especially intense in the nuclei of the anaplastic cells (x400).