Case Author(s): Vreeland M.D. , Royal M.D. , 11/18/94 . Rating: #D3, #Q5

Diagnosis: Myositis (pectoralis muscles)

Brief history:

19 yo male with a 6 month history of Hodgkins Disease.


Anterior and Posterior Delayed Whole Body Bone Images (with spot views of the anterior thorax)

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Full history/Diagnosis is available below

Diagnosis: Myositis (pectoralis muscles)

Full history:

This patient is a 19 year old man with nodular sclerosing lymphoma diagnosed eight months prior to this examination. Prior gallium scintigraphy showed this tumor to be gallium avid. The patient had undergone chemotherapy and was being evaluated to determine therapeutic response.


Prominent soft tissue uptake is seen in the pectoralis muscles, bilaterally. Otherwise, the examination showed only physiologic distribution of activity.


The patient is an avid weight-lifter. Two days prior to the examination, the patient had an intensive workout, focusing on his chest muscles. At the time of the examination, he admitted to being "quite sore" in his chest.

The history and scintigraphic findings are characteristic of an exercised-induced, myositis.


The patient was followed conservatively.

ACR Codes and Keywords:

References and General Discussion of Bone Scintigraphy (Anatomic field:Skeletal System, Category:Effect of Trauma)

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Case number: bs014

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