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Updated: Jul 26, 2026

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A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
Anal melanoma: an aggressive malignancy masquerading as hemorrhoids
M W Felz1, G B Winburn, A M Kallab
1Department of Family Medicine, Surgery, and Medicine, (Section of Medical Oncology), Medical College of Georgia, Augusta 30912, USA.
Southern Medical Journal
|October 11, 2001
Summary
Anal melanoma, a rare rectal cancer, is often misdiagnosed as hemorrhoids, delaying treatment. This review highlights key features to improve early recognition and management of this aggressive malignancy.
Area of Science:
- Oncology
- Gastroenterology
- Pathology
Background:
- Anal melanoma is a rare but aggressive malignancy.
- It is frequently misdiagnosed as benign hemorrhoids due to similar presenting symptoms.
- Delayed diagnosis significantly impacts patient prognosis and treatment outcomes.
Observation:
- Four cases of anal melanoma were identified over four years at the institution.
- All initial presentations were mistaken for hemorrhoids.
- Patients received surgical intervention and chemoimmunotherapy.
Findings:
- Despite treatment, all patients developed widely metastatic disease.
- The average survival time for these patients was 15.2 months.
- Physician unfamiliarity contributes to diagnostic delays.
Implications:
- Enhanced physician awareness and recognition of anal melanoma are crucial.
- Improved diagnostic strategies are needed for this unusual anorectal disorder.
- Early detection and prompt treatment are vital for potentially improving outcomes in anal melanoma.
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