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Intramuscular Follicular Lymphoma
Filipe Martins, Gregoire Stalder, Axel Van Der Gucht1
1Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital, Lausanne, Switzerland.
Clinical Nuclear Medicine
|June 26, 2018
Summary
A painless arm mass in a 76-year-old man was diagnosed as intramuscular follicular lymphoma. This finding highlights the importance of considering lymphoma in the differential diagnosis of arm tumors.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Intramuscular tumors require accurate differential diagnosis.
- Follicular lymphoma can present as a soft tissue mass.
Observation:
- A painless, growing 7.5 × 3-cm mass was identified in the right arm of a 76-year-old male.
- Musculoskeletal MRI revealed a homogeneous, well-defined mass along muscle fascias, separate from bone.
Findings:
- Core-needle biopsy confirmed the mass as low-grade follicular lymphoma.
- MRI and whole-body F-FDG PET/CT imaging provided key diagnostic information.
Implications:
- Intramuscular lymphoma should be considered in the differential diagnosis of neurovascular and soft tissue tumors.
- Advanced imaging aids in refining the diagnosis of rare soft tissue malignancies.
