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Bone & Joint MCs
Question | Answer |
---|---|
MC area/position in bone to get tumor | Metaphysis |
MC malignancy of skeleton | Mets |
MC female cancer to mets to bone | Breast |
MC male cancer to mets to bone | Prostate |
MC childhood cancer to mets to bone | Neuroblastoma |
MC bone lesion to spread to bone | Ewings -2nd=Osteosarc, 3rd=Chondrosarc |
MC primary bone malignancy that results in fractures | Non-Hodgkin’s Lymphoma |
MC pathway of tumor spread | Hematogenous |
MC x-ray pattern of mets | Lytic (70%) |
MC primary malignant bone tumor | Multiple myeloma |
2nd MC primary bone malignancy | Osteosarcoma |
MC location of multiple myeloma | Vertebrae |
MC location of central osteosarcoma | Knee |
MC x-ray pattern of osteosarcoma | Sclerotic |
MC area osteosarcoma mets to | Lungs |
MC primary bone lesion in children | Osteosarcoma |
2nd MC primary bone tumor in kids | Ewings |
MC type of chondrosarcoma | Central |
MC location (2) of chondrosarcoma | Pelvis & Femur |
MC primary malignancy of hand | Chondrosarcoma |
MC bone (location) affected in Ewings | Femur |
MC location for fibrosarcoma | fem/tib – KNEE! |
MC malignancy to produce large ST mass | fibrosarcoma |
MC soft tissue sarcomaof late adult life | Malig fibrous histocytoma |
MC location for chordomas | Sacrococcygeal area (2-clivus, 3-verteb) |
MC cervical spine level affected by chordoma | C2 |
MC location for Non-Hodgkins Lymphoma | femur |
MC location for Hodgkins Lymphoma | vertebral bodies |
MC x-ray pattern for HL | Lytic |
MC benign tumor of sacrum & patella | Giant Cell Tumor |
MC location for Giant Cell Tumor | Knee |
MC benign tumor of extremities | Osteochondroma |
MC location of osteochondroma | Knee |
MC benign tumor of spine | Hemangioma |
MC type of hemangioma | Cavernous |
MC location for hemangioma (2) | Spine (lower T, upper L) & Skull (frontal) |
MC tumor of nose & sinuses | Osteoma |
MC location for enostoma (bone island) | Ischium |
MC location for osteoid osteomas | Femur & Tibia |
MC benign tumor of hand | Enchondroma |
MC finger to get enchondroma | Fifth (Fif!) |
MC location for FCD/NOFs | Knee |
MC location for Simple Bone Cyst | Humerus |
MC type of ABC | Secondary (trauma or tumor) |
2nd MC location for ABS’s (2) | Tubular long bones (femur, tib)& Spine |
MC benign bone tumor of clavicle | ABC |
MC Paget’s stage found at patient presentation | 2 (mixed) |
MC location for Paget’s | Pelvis (R>L) |
MC cancer Paget’s degenerates to | Osteosarcoma |
MC form of fibrous dysplasia | Monostotic |
MC fibrous dysplasia monostotic location | Ribs |
MC fibrous dysplasia polyostotic location | Femur |
MC bony abnormality in Neurofibromatosis - Type 1 | Kyphoscoliosis |