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Skin Cancer

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...

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Updated: Jul 3, 2025

A 3D Organotypic Melanoma Spheroid Skin Model

A 3D Organotypic Melanoma Spheroid Skin Model

Published on: May 18, 2018

Anorectal melanoma: a rare entity.

Luís Miguel Relvas¹, Tânia Gago¹, Francisco Velasco¹

¹Gastrenterology, Centro Hospitalar Universitário do Algarve, Portugal.

Revista Espanola De Enfermedades Digestivas

|February 12, 2024

Summary

Anorectal melanoma is a rare cancer that can mimic benign conditions like hemorrhoids, delaying diagnosis. This case highlights the importance of considering rare diagnoses even with common symptoms.

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Area of Science:

Gastroenterology
Oncology
Pathology

Background:

Anorectal melanoma is a rare malignancy.
It often presents with symptoms that mimic benign anorectal conditions, complicating diagnosis.

Observation:

A case of anorectal melanoma is presented.
The patient's symptoms were initially misinterpreted as hemorrhoidal disease.

Findings:

The misdiagnosis of hemorrhoidal disease delayed the identification of anorectal melanoma.
This delay impacted the timing of appropriate medical intervention.

Implications:

Highlights the diagnostic challenges posed by anorectal melanoma.
Emphasizes the need for vigilance in evaluating anorectal symptoms, even when they appear benign.
Underscores the importance of timely diagnosis for effective treatment of rare anorectal cancers.