Related Experiment Video
Updated: Aug 8, 2026

08:49
A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
The presentation of malignant melanoma
Summary
South African malignant melanoma survival rates are low due to late diagnosis. Early detection of symptoms like lesion changes or bleeding is crucial for improved patient outcomes.
Area of Science:
- Dermatology
- Oncology
Background:
- Malignant melanoma survival rates in South Africa lag behind international benchmarks.
- Late-stage presentation significantly contributes to poorer prognoses in South African patients.
Observation:
- Common presenting symptoms include pigmented lesion growth, bleeding, darkening, pain, tenderness, and itching.
- A subset of patients presented with advanced signs like ulceration and satellitosis.
Findings:
- Late diagnosis is the primary driver of unfavorable survival statistics for malignant melanoma in South Africa.
- Patient awareness and education regarding suspicious signs are critically needed.
Implications:
- Increased public awareness and earlier medical consultation can improve malignant melanoma detection rates.
- Timely diagnosis and treatment are essential for enhancing survival outcomes in South Africa.
- Educational initiatives targeting the public and healthcare providers are recommended.
Related Concept Videos
Pigmentation
The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
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...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...

