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Variations in gastrointestinal melanoma metastases.
1Department of Radiology, University of Zagreb, Yugoslavia.
Acta Radiologica (Stockholm, Sweden : 1987)
|September 1, 1990
Summary
Cutaneous malignant melanoma can metastasize to the gastrointestinal tract, affecting the stomach, small intestine, and large intestine. The appearance of these secondary melanoma deposits varies, with target lesions being common in the stomach but less so in the intestines.
Area of Science:
- Gastroenterology
- Oncology
- Radiology
Background:
- Cutaneous malignant melanoma is a significant health concern.
- Gastrointestinal metastases from melanoma can present diagnostic challenges.
Purpose of the Study:
- To describe the diverse morphological appearances of gastrointestinal metastases from cutaneous malignant melanoma.
- To analyze the varied presentations of secondary melanoma in the stomach, small intestine, and large intestine.
Main Methods:
- Retrospective analysis of 10 patients with gastrointestinal metastases from cutaneous malignant melanoma.
- Review of imaging findings, focusing on the morphology of metastases in different parts of the gastrointestinal tract.
Main Results:
- Metastases were observed in the stomach (2/10), small bowel (9/10), and large bowel (3/10).
- Gastric metastases commonly appeared as target lesions.
- Intestinal metastases exhibited varied morphologies, including target lesions, matted loops, infiltrative/stenotic lesions, and polypoid/ulcerated deposits.
Conclusions:
- Gastrointestinal metastases from cutaneous malignant melanoma demonstrate significant morphological variability.
- Radiologists and clinicians should be aware of these diverse presentations for accurate diagnosis.