Osteosarcoma of the Patella

Nagai, Shinjiro; Okuda, Noriyuki; Azuma, Hirohiko; Suzuki, Masako; Takahama, Motohide

doi:10.1097/00003086-199304000-00037

Cited by 7 publications

(2 citation statements)

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“…Most chondroblastomas occur in the second decade, arising in the epiphysis of a skeletally immature long bone. In our series, the median age at presentation was 23 years (range [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Radiographically, they tend to be osteolytic, round or lobulated, and with a well-defined sclerotic rim of reactive bone.…”

Section: Discussionmentioning

confidence: 99%

Tumour and tumour-like lesions of the patella – a multicentre experience

et al. 2008

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Fifty-nine cases of lesions presenting in the patella were identified after review of the databases of four European bone tumour registries. Of the 59 cases, 46% were non neoplastic, 39% were benign and 15% were malignant. The commonest benign neoplasm was giant cell tumour (GCT) (11 cases). Younger patients were more likely to have a benign neoplasm. Lesions in patients less than 40 years of age included giant cell tumour, chondroblastoma, aneurysmal bone cyst (ABC), osteomyelitis, osteoid osteoma and solitary bone cyst. In patients older than 40 years, the following were common lesions: intra-osseous gout, metastasis and intra-osseous ganglion. Expansion of the patella with thinning of cortex was seen more commonly in GCT and brown tumour in hyperparathyroidism. There was associated soft tissue extension in gout and malignant lesions.

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Section: Discussionmentioning

confidence: 99%

Tumour and tumour-like lesions of the patella – a multicentre experience

et al. 2008

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“…The patient subsequently underwent chemotherapy and surgery and has remained well for 120 months to date (Okada et al, with recent personal communication) ( 6 ). Two cases (cases 2 and 6) that had metastatic lesions at the initial presentation were managed in the same manner as case 3 ( 9,10 ). However, both patients died of lung metastasis.…”

Section: Discussionmentioning

confidence: 99%

Osteosarcoma of the patella: A case report

Chida¹,

Nagasawa²,

Okada³

et al. 2011

Upsala Journal of Medical Sciences

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We present a rare case of osteosarcoma involving the patella. A 30-year-old Japanese woman first consulted our out-patient clinic with a 2-year history of knee pain. Radiographs showed an enlargement of the patella with irregular distribution of both osteolytic and sclerotic lesions. Computed tomography and magnetic resonance imaging demonstrated soft tissue extension at the anterior part of the patella. Incisional biopsy showed abundant osteoid formation by spindle-shaped malignant cells, and the histological diagnosis was conventional osteosarcoma. The patient underwent preoperative chemotherapy, but there was no response. Furthermore, she developed a pathological fracture during chemotherapy. She underwent above-the-knee amputation with postoperative chemotherapy. She developed multiple metastases in the thoracic vertebrae 20 months after the surgery. At the most recent examination, she remains alive with multiple spinal metastases without paralysis 4 years after the surgery.

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