Bone leiomyosarcoma is a rare primary osseous malignant tumor with a high metastatic potential. Similar to other bone sarcomas, high histological grade and tumor stage are predictive of a poor outcome. We herein present our experience with treating a 64-year-old woman with bone leiomyosarcoma accompanied by multiple bone metastases. A biopsy revealed occasional osteoclast-like giant cells. In addition to radiation therapy, the osteoclastogenesis inhibitor denosumab was administered but the patient did not undergo adjuvant chemotherapy or surgery. Good clinical and short-term radiological responses to denosumab have been observed for 2 years. Therefore, denosumab may represent a viable treatment option without the need for adjuvant chemotherapy.
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http://dx.doi.org/10.3892/mco.2017.1489 | DOI Listing |
Int J Surg Pathol
December 2024
Department of Orthopedics, Osaka General Medical Center, Osaka, Japan.
Nodular fasciitis is a benign, usually self-limiting myofibroblastic proliferation with a predilection for the upper extremities, trunk, and head and neck, and almost all of which harbor the fusion. Since nodular fasciitis is not widely recognized to arise within the joints, it may therefore cause diagnostic confusion in this uncommon setting. We report an unusual tumor of an 11-year-old patient who presented with a 6-month history of right elbow swelling and pain.
View Article and Find Full Text PDFHum Cell
December 2024
Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan.
Giant cell tumor of bone (GCTB) is a rare osteolytic tumor composed of mononuclear stromal cells, macrophages, and osteoclast-like giant cells. While generally benign, GCTB has a high risk of local recurrence and can occasionally undergo malignant transformation or metastasis, posing significant clinical challenges. The primary treatment is complete surgical resection; however, effective management strategies for recurrent or advanced GCTB remain elusive, underscoring the need for further preclinical research.
View Article and Find Full Text PDFIntroduction: Brown tumors are benign lesions caused by hyperparathyroidism and characterized by increased osteoclast activity and mass effect, which can lead to paraplegia when the spine is involved. Secondary hyperparathyroidism is common in patients on long-term hemodialysis therapy.
Case Report: We report the case of a 48-year-old man on regular dialysis who presented with leg weakness as well as back pain and was diagnosed with secondary hyperparathyroidism and thoracic spine tumor.
J Ayub Med Coll Abbottabad
December 2024
Combined Military Hospital, Rawalpindi-Pakistan.
Virchows Arch
November 2024
Institute of Pathology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany.
This report documents the first case of a conventional (bone-type) giant cell tumor of the larynx, in which the diagnosis was confirmed by molecular genetic analysis. A 50-year-old non-smoking man experienced progressive hoarseness lasting for 3 months. Imaging showed a 40-mm tumor arising from the right thyroid cartilage.
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