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Juxta-articular chondroma Kaposi's Sarcoma Large cell lymphoma, Leimyosarcoma, Leiomyosarcoma, Letterer-Siwe disease, Leukemia, Low-grade intramedullary osteogenic sarcoma, Lumbosacral lipoma, Lymphangioma, Lymphangiomatosis, Lymphoma, Lymphoma pseudotumor (Actual: radiation osteitis), Lymphoma pseudotumor (Actual: stress fracture), Lymphoma with secondary osteogenic sarcoma Maffucci's Syndrome, Maligant fibrous histiocytoma pseudotumor (Actual: Hematoma), Malignant fibrous histiocytoma (MFH).
Metastatic breast carcinoma pseudotumor (Stress fracture) - Proximal femur - Photomicrograph
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Metastatic breast carcinoma pseudotumor (Stress fracture) - Proximal femur - Photomicrograph
  • Case ID: 1169
  • Diagnosis: Metastatic breast carcinoma pseudotumor (Stress fracture)
  • Category: Pseudotumors
  • Category Type: Metastatic carcinoma to bone
  • Category Sub Type: Benign
  • Location: Proximal femur
  • Age: 47
  • Sex: F
  • Treatment: Hemiarthroplasty
  • Image ID: 5609
  • Image Type: Photomicrograph
  • Images relating to this case: 5607 , 5608 , 5609, 5610 , 5611 .

The surgeon decided to proceed with a bipolar prosthetic replacement of the upper end of the femur. At the time of surgery, he curetted the area of the supposed metastatic lesion and here is the photomicrograph from that specimen that shows the typical features of a healing stress fracture with reactive osteoid and cartilage formation. There is no metastatic tumor seen.


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