Case Author(s): Samuel Wang, M.D. and Keith Fischer, M.D. , 5/18/97 . Rating: #D2, #Q3

Diagnosis: Septic arthritis of the acromioclavicular joint.

Brief history:

53 year old man with left shoulder pain.


Delayed 24 hour anterior and posterior whole body images.

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Full history/Diagnosis is available below

Diagnosis: Septic arthritis of the acromioclavicular joint.

Full history:

53 year old man with recent onset of left shoulder pain. He has advanced diabetes and a prior history of septic arthritis of the right shoulder. Bone scintigraphy performed two days previously demonstrated non-specific mildly increased activity in the left shoulder on the immediate and delayed images.


0.5 mCi In-111 label autologous leukocytes i.v.


A focus of increased leukocyte accumulation is identified in the left acromioclavicular joint most consistent with pyogenic arthritis.


Cultures were positive for staphylococcus. He also subsequently developed vertebral osteomyelitis.

ACR Codes and Keywords:

References and General Discussion of Indium -111 WBC Scintigraphy (Anatomic field:Skeletal System, Category:Inflammation,Infection)

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Case number: iw006

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