Fig. 45.1
Benign PMT. MRI showing a high signal intensity juxtacortical heterogeneous mass in the left femur in a coronal view
Fig. 45.3
Benign PMT. CT shows an ovoid lesion attached to the internal wall of the rib cage. There is no mineralized area
Fig. 45.4
Same case as in Fig. 45.1. Radiographs show diffuse, intense osteopenia, a deformed pelvis, and insufficiency fractures of both femurs (a) and intense deformities of the spine and the rib cage (b). Bone consistency got back to normal, and fractures healed after removal of tumor
Fig. 45.5
Same case as in Fig. 45.1. The specimen contained cysts surrounded by tan soft tissue with white areas of ossification (a). (b) A whole specimen histological mount; cellular areas are seen around the cysts with peripheral ossification
Fig. 45.6
Another slab section of the same case as in Fig. 45.2. White, fish-flesh-like areas denounce cellular areas of lesion. Hemorrhagic and tan soft areas are also seen
Fig. 45.7
PMTMCT – peripheral ossification is seen between a fibrous capsule and cellular area of the tumor
Fig. 45.8
PMTMCT – richly vascularized tumor tissue, hemangiopericytoma-like pattern
Fig. 45.9
PMTMCT – numerous capillaries in a high proliferation of bland, spindled to stellate cells
Fig. 45.10
PMTMCT – area with background resembling chondroid matrix
Fig. 45.11
PMTMCT – low-power view of area with peculiar calcifications, an unusual “smudgy” matrix that calcifies in a characteristic flocculent fashion
Fig. 45.12
PMTMCT – higher-power view of focus of flocculent calcifications
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