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Metastatic carcinoid tumor in the orbit
Yumi Takemoto1, Naoyo Nishida, Sakiko Kojiro
1Department of Pathology, Kurume University School of Medicine, Kurume 830-0011, Japan.
The Kurume Medical Journal
|February 11, 2004
Summary
A rare case of carcinoid tumor metastasis to the orbit is presented. This report highlights the unusual occurrence of orbital carcinoid tumors, emphasizing their rarity in medical literature.
Area of Science:
- Oncology
- Ophthalmology
- Endocrinology
Background:
- Carcinoid tumors are neuroendocrine neoplasms that can metastasize to various organs.
- Metastasis to the orbit is an exceptionally rare presentation of carcinoid tumors.
Observation:
- A 39-year-old man with a history of duodenal carcinoid tumor and prior resections of nodal, mediastinal, and lung metastases presented with new-onset diplopia.
- Imaging revealed a 2 cm orbital tumor with frontal sinus involvement.
Findings:
- The orbital tumor was surgically resected and diagnosed as a metastatic carcinoid tumor.
- This represents one of approximately 30 reported cases of orbital carcinoid metastasis in the English literature.
Implications:
- This case underscores the importance of considering rare metastatic sites in patients with a history of carcinoid tumors.
- The rarity of orbital metastasis necessitates further investigation into the behavior and diagnostic challenges of these tumors.