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Rare Orbital Metastasis Originating From a Neuroendocrine Tumor
Radiologic Technology
|November 6, 2019
Summary
This case study highlights a rare gastrointestinal neuroendocrine tumor metastasizing to the orbit. Advanced imaging, including MRI and fusion imaging, aided diagnosis, with octreotide therapy being the preferred treatment for this orbital metastasis.
Area of Science:
- Ophthalmology
- Oncology
- Radiology
Background:
- Presents a rare case of orbital metastasis originating from the gastrointestinal tract.
- Details a patient with proptosis caused by a slow-growing orbital tumor.
- Biopsy confirmed a low-grade neuroendocrine tumor.
Observation:
- Biopsy confirmed a low-grade neuroendocrine tumor.
- Magnetic resonance (MR) imaging provided detailed visualization of the orbital mass.
- Fusion imaging software combined MR and octreoscan studies.
Findings:
- Confirmed the presence of a neuroendocrine carcinoid tumor in the orbit.
- Orbital metastases commonly present with proptosis and diplopia.
- MR, CT, and nuclear medicine are crucial for diagnosis and assessment.
Implications:
- Fusion imaging offers diagnostic value, especially without hybrid scanners.
- Octreotide therapy is the primary treatment for orbital metastases.
- Other treatment options include radiation, surgery, and chemotherapy.
