musckuloskeletal mcqs
DESCRIPTION
Musckuloskeletal MCQs. Aneurysmal Bone Cyst (ABC) . Aneurysmal Bone Cyst (ABC) . Respect epiphyseal plate. soap-bubble. Thin internal trabeculations. Almost invesible cortex. Expansile lesion. No periosteal reaction except in case of fracture. Doughnut sign in scintigraphy. - PowerPoint PPT PresentationTRANSCRIPT
Musckuloskeletal MCQsMusckuloskeletal MCQs
Aneurysmal Bone Cyst (ABC) Aneurysmal Bone Cyst (ABC)
Aneurysmal Bone Cyst (ABC) Aneurysmal Bone Cyst (ABC)
Expansile lesion
Respect epiphyseal plate
Almost invesible cortex
Thin internal trabeculations
soap-bubble
No periosteal reaction except in case of fracture
Doughnut sign in scintigraphy
Aneurysmal Bone cyst :Aneurysmal Bone cyst :
a.Occur secondary to fibrous dysplasia b.Can present with scoliosisc.May contain fluid-fluid level at MRId.Contain calcified matrixe.Doughnut sign at scintigraphy is
pathognomonic
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(X )
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Multiple Myeloma
Mulyiple osteolytic Punched-out lesion
Absence of perilesional sclerosis
Mulyiple osteolytic Punched-out lesion
Complicated by pathological fracture
Associated with osteopenia
PET PET-CT coronal view
Regarding Multiple Myeloma :Regarding Multiple Myeloma :
a. It is the commonest 1ry neoplasm of boneb. Generalised osteopenia is a recognised
appearancec. Scintigraphy over-estimates disaese extentd. Lesions becomes scleotic following
chemotherapye. Vertebral pedicle destruction is an early
event
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(√ ) also following radiotherapy
(X ) under estimates
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(√ ) in 15 %
(Ref: Grainger and Allison pp1913-1915,Daenhartppp121-122, Chapman 2003pp575-576)
Rheumatoid arthritis :Rheumatoid arthritis :
Articular erosion
Periarticular osteopeniaNarrowing of the joint spaces
Soft tissue swelling
Joint deformity
Joint instability due to ligament rupture
Narrowing of the glenohumoral joint
Marginal erosion
High ridding of the humerus
Lateral erosion of the clavicle
Erosion of the MTP Lateral deviation of toes , Hammer toes
Erosion of Odontoid process
Erosion of facet joints
Pannus proliferation directly compresses the spinal cord.
ligamentous destruction can result in atlantoaxial impaction
Erosion of the lateral 3Erosion of the lateral 3rdrd of the of the clavicle is seen in the following:clavicle is seen in the following:
a.Rheumatoid arthritisb.Ankylosing spondylitisc.Langerhans cell histiocytosisd.Hypoparathyroidisme.Multiple myeloma
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(X ) Hyperparathyroidism
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Concerning Malignant Bone Lesions
Concerning Malignant bone lesion:Concerning Malignant bone lesion:
a. Chordoma is most common in the thoracolumbar spine
b. Fibrosarcoma is the commonest tumour 2ry to paget’s disease
c. Adamantinoma occursin the tibia in over 90% of cases
d. Angiosarcoma has a soap bubble appearance at radiography
e. Chondroblastoma are typically found in the diaphysis
(X ) 90% in basisphenoid and sacrum
Sacral Chordoma
Basisphenoid Chordoma
Concerning Malignant bone lesion:Concerning Malignant bone lesion:
a. Chordoma os most common in the thoracolumbar spine
b. Fibrosarcoma is the commonest tumour 2ry to paget’s disease
c. Adamantinoma occurs in the tibia in over 90% of cases
d. Angiosarcoma has a soap bubble appearance at radiography
e. Chondroblastoma are typically found in the diaphysis
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(X ) 90% in basisphenoid and sacrum
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Adamantinoma
Concerning Malignant bone lesion:Concerning Malignant bone lesion:
a. Chordoma os most common in the thoracolumbar spine
b. Fibrosarcoma is the commonest tumour 2ry to paget’s disease
c. Adamantinoma occursin the tibia in over 90% of cases
d. Angiosarcoma has a soap bubble appearance at radiography
e. Chondroblastoma are typically found in the diaphysis
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(X ) 90% in basisphenoid and sacrum
(X ) they are epiphyseal lesions
Chondroblastoma
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