Search Results for tenosynovial

EXTRA-ARTICULAR (TENOSYNOVIAL) CHONDROMATOSIS Figure 19-28 EXTRA-ARTICULAR (TENOSYNOVIAL) CHONDROMATOSIS Lobular, gray-glistening cartilaginous tumor nodules are seen. More about this image found in EXTRA-ARTICULAR (TENOSYNOVIAL) CHONDROMATOSIS Lobular, gray-glistening car...

TENOSYNOVIAL GIANT CELL TUMOR WITH EXTENSIVE FIBROSIS Figure 19-17 TENOSYNOVIAL GIANT CELL TUMOR WITH EXTENSIVE FIBROSIS This is usually more prominent in the localized form. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR WITH EXTENSIVE FIBROSIS This is usually more...

TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE, WITH FIBROSIS Figure 19-18 TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE, WITH FIBROSIS An “alveolar” pattern is seen. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE, WITH FIBROSIS An “alveolar”...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-7 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE The tumor has replaced and expanded the subsynovial connective tissue. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE The tumor has replaced and exp...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-11 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Immunohistochemical stains for CD163 (A), desmin (B), D2-40 (C), and clusterin (D). More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Immunohistochemical stains for...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-12 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE The tumor, treated with a CSF1 inhibitor, is hypocellular and fibrotic, with small nests of foamy histiocytes. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE The tumor, treated with a CSF1...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-9 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE There is complete infarct-type necrosis. Mononuclear and multi - nucleated ghost cells are still identified. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE There is complete infarct-type...

TENOSYNOVIAL GIANT CELL TUMOR Figure 19-15 TENOSYNOVIAL GIANT CELL TUMOR Left: The cut surface is typically gray, yellow, and brown. Right: This tumor has a predominantly yellow and brown cut surface. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR Left: The cut surface is typically gray, yel...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-4 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Sagittal T1-weighted MRI shows an intra-articular mass with hypointense foci involving the temporomandibular joint (arrows). More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Sagittal T1-weighted MRI shows...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-10 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Top: The underlying bone is invaded. Bottom: Skeletal muscle fibers are invaded and encased. This is uncommon but does not indicate malignancy. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Top: The underlying bone is in...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-6 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Top: The tumor has a nodular gray and yellow cut surface. Bottom: A recurrent tumor, in a digit, has a lobulated yellow, gray, and brown cut surface. More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Top: The tumor has a nodular g...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-5 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Left: The synovium is nodular and villous, yellow, brown, and gray. There are some degenerative changes of the articular cartilage. Right: The tumor, suspended in a petri dish, shows More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Left: The synovium is nodular ...

TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Figure 19-13 TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Sagittal T1-weighted (left) and fat-suppressed T2- weighted (right) MRIs of the index finger demonstrate a well-defined, predominantly hypointense soft tissue mass at the palmer aspect More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Sagittal T1-weighted (left) ...

TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Figure 19-14 TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Left: Lateral radiograph of the finger shows that the tumor arises in the soft tissue and scallops the underlying bone. Right: In another tumor, sagittal T2-weighted MRI shows a hypointense More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Left: Lateral radiograph of ...

TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Figure 19-16 TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Left: This tumor has the same histologic appearance as the diffuse type, composed of numerous mononuclear cells and scattered multinucleated giant cells with variable amount of extracellular More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, LOCALIZED TYPE Left: This tumor has the sam...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-3 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE A: Lateral radiograph of the ankle demonstrates soft tissue masses in the tibiotalar joint (arrows). B,C: Sagittal proton density (B) and fat-suppressed T2- weighted (C) MRIs show hypointense More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE A: Lateral radiograph of the a...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-8 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE A: The tumor is composed of an admixture of mononuclear cells and multinucleated giant cells. There is some fibrosis and hemosiderin deposition. B: At higher power, many of the mononuclear cells More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE A: The tumor is composed of an...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-1 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Left: Lateral radiograph shows a soft tissue mass without areas of mineralization in the posterior aspect of the knee (arrows). Right: Sagittal proton density-weighted magnetic resonance image More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Left: Lateral radiograph shows...

TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Figure 19-2 TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Lateral radiograph of the knee (A) demonstrates soft tissue masses in the suprapatellar recess and popliteal fossa (arrows). Coronal T1-weighted (B), axial fat-suppressed T2-weighted (C More about this image found in TENOSYNOVIAL GIANT CELL TUMOR, DIFFUSE TYPE Lateral radiograph of the knee...