Items tagged “bone tumour”

69 results found
Article

Primary bone lymphoma

Primary bone (skeletal/osseous) lymphoma (PBL) is a less common manifestation of lymphoma than secondary involvement from disseminated lymphoma. It is rare, accounting for <5% of bone tumors and <1% of non-Hodgkin lymphoma. Terminology PBL is defined as the presence of lymphoma isolated to one...
Article

Tumors that metastasize to bone (mnemonic)

Tumors that metastasize to bone may be remembered using the mnemonic "PBKTL", rendered as "lead kettle", as "Pb" is the standard abbreviation for the chemical element, lead. PB-KTL Mnemonic P: prostate B: breast K: kidney T: thyroid L: lung For females, breast and lung are the most commo...
Article

Type 1 pelvic resection

Type 1 pelvic resections are complex surgeries that involve removing part of the pelvis, usually to resect malignant tumor. Type 1 pelvic resections remove a varying amount of the iliac bone, and are classified in general terms as "partial" or "complete", depending on how much of the iliac bone...
Article

Describing a bone lesion

Describing a bone lesion is an essential skill for the radiologist, used to form an accurate differential diagnosis for neoplastic entities, and occasionally non-neoplastic. In addition to patient demographics, the radiographic features of a bone lesion are often the primary determinant of non-h...
Case

Telangiectatic osteosarcoma

  Diagnosis almost certain
Yasser Asiri
Published 12 Dec 2018
77% complete
X-ray MRI
Case

Periosteal osteosarcoma

  Diagnosis almost certain
Yasser Asiri
Published 12 Dec 2018
77% complete
X-ray MRI
Case

Parosteal osteosarcoma

  Diagnosis almost certain
Yasser Asiri
Published 12 Dec 2018
78% complete
X-ray MRI CT
Case

Osteosarcoma - femur

  Diagnosis certain
Mostafa Elfeky
Published 21 Dec 2018
95% complete
MRI CT
Case

Ollier disease

  Diagnosis almost certain
Yasser Asiri
Published 21 Dec 2018
75% complete
X-ray
Case

Primary bone lymphoma

  Diagnosis certain
Yasser Asiri
Published 28 Dec 2018
92% complete
X-ray MRI
Case

Osteoid osteoma - femoral neck

  Diagnosis almost certain
Ammar Haouimi
Published 10 Jan 2019
78% complete
CT MRI
Case

Osteoid osteoma - humerus

  Diagnosis almost certain
Vitalii Rogalskyi
Published 02 Feb 2019
80% complete
CT
Case

Peripheral primitive neuroectodermal tumor (pPNET) - pelvis

  Diagnosis certain
Ammar Haouimi
Published 21 Dec 2020
89% complete
MRI CT
Case

Sunburst periosteal reaction

  Diagnosis probable
Hidayatullah Hamidi
Published 04 Sep 2020
66% complete
X-ray
Article

Osteochondromyxoma

Osteochondromyxomas (OMX) are very rare benign tumors with both a chondroid and osteoid matrix mostly seen within the Carney complex. Epidemiology Generally, osteochondromyxomas are extremely rare. Within the Carney complex, they occur in about 1% of the patients and are usually seen early in ...
Article

High-grade surface osteosarcoma

High-grade surface osteosarcomas are sporadic and high-grade malignant osteoid-forming tumors emerging from the bony surfaces similar to parosteal and periosteal osteosarcomas. Epidemiology High-grade surface osteosarcomas are very rare and constitute <1% of all osteosarcomas. There seems to b...
Article

Epithelioid hemangioma of bone

Epithelioid hemangiomas of bone are benign intraosseous vascular neoplasms of epithelioid morphology which show locally aggressive behavior. Terminology The following terms are not recommended 1:  histiocytoid hemangioma hemorrhagic epithelioid hemangioma spindle cell hemangioma Epidemiolo...
Article

Fibrocartilaginous mesenchymoma

Fibrocartilaginous mesenchymomas are very rare locally aggressive mesenchymal bone tumors composed of spindle cells seen in children and adolescents. Terminology The term 'fibrocartilaginous mesenchymoma with low-grade malignancy' has been discouraged 1. Epidemiology Fibrocartilaginous mesen...
Article

Poorly differentiated chordoma

Poorly differentiated chordomas are highly aggressive poorly differentiated notochordal tumors with a loss of SMARCB1 expression. Epidemiology Poorly differentiated chordomas are very rare tumors typically seen in children and young adults under the age of 30 years. Females are more frequently...
Article

Dedifferentiated chordoma

Dedifferentiated chordomas are biphasic malignant tumors composed of notochordal and high-grade sarcomatous components. Epidemiology Dedifferentiated chordomas are very rare tumors that might be seen in recurrences or after radiotherapy 1-3. Diagnosis The diagnosis is based on typical imagin...