الفهرس 
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Abstract
Musculoskeletal lesions are frequently encountered in clinical
practice presenting as painless masses, pain sources, or as incidental
findings in imaging studies. Axial imaging can be used in the
diagnosis of primary and secondary musculoskeletal lesions; however,
the histopathologic verification is mandatory.
The decision of the biopsy and its technique should be made on
the basis of a multi-disciplinary team formed of interventional
radiologist MSK pathologists, surgical oncologists, radiation
oncologists, and oncologists.
Different Imaging modalities can be used for guidance of the
MSK core needle biopsy (CNB); while fluoroscopy was the earliest
adopted modality for image guidance, ultrasonography (US) and
computed tomography (CT) become now the preferred modality for
that purpose.
Proper selection of the CNB needle type and size as well as the
needle pathway are important factors in achieving a successful biopsy
with higher diagnostic rates and lower complications risks. The
number of cores is other determinant factors with minimum three
cores are required for sufficient tissue sampling for MSK lesions.
The aim of this work was to assess the diagnostic yield of
image guided biopsy in the diagnosis of musculoskeletal diseases.
In this work image guided biopsies were performed in 26
patient (M=15 and F=11) complaining of musculoskeletal lesion.
Twenty biopsies were from bone lesions and six from soft tissue
lesions. Ultrasound and CT were the image guided modality where we
used ultrasound twenty time and CT six times. We also used needle with caliber gauge ranging from 14 to 18 G (18 G used 16 times , 16G
used 8 time and 14 gauge used 2 times).
Adequacy of the sample was evaluated by the satisfaction of the
pathologist regarding the adequacy of the sample to yield a
histopathological diagnosis ,where 25 cases were adequate and only
one was inadequate and needed rebiopsy.
We then followed our cases thoroughly during their subsequent
management and the overall diagnostic yield is established on the
basis correctly diagnosed and misdiagnosed cases , where 24 cases
were correctly diagnosed and only two cases were misdiagnosed.
So the overall accuracy rate of the image guided
musculoskeletal biopsy were 92.3%.
In our work, there were no major complication and only one
case (3.8%) has had a local hematoma which is resolved in subsequent
follow up.