Podcast
Questions and Answers
What is a key characteristic of morpheaform basal cell carcinoma?
What is a key characteristic of morpheaform basal cell carcinoma?
Which type of basal cell carcinoma is least aggressive and least likely to metastasize?
Which type of basal cell carcinoma is least aggressive and least likely to metastasize?
What typical appearance does actinic keratosis (AK) have?
What typical appearance does actinic keratosis (AK) have?
Which of the following is NOT a risk factor for developing actinic keratosis?
Which of the following is NOT a risk factor for developing actinic keratosis?
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Which area of the body is least likely to develop actinic keratosis?
Which area of the body is least likely to develop actinic keratosis?
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What is the most common type of skin cancer, accounting for 70-80% of melanoma cases?
What is the most common type of skin cancer, accounting for 70-80% of melanoma cases?
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Which type of melanoma develops from a slow-growing, flat, colored patch of skin called lentigo maligna?
Which type of melanoma develops from a slow-growing, flat, colored patch of skin called lentigo maligna?
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What characteristic makes nodular melanoma particularly invasive?
What characteristic makes nodular melanoma particularly invasive?
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Acral lentiginous melanoma is most commonly found in which location?
Acral lentiginous melanoma is most commonly found in which location?
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What is the most common type of mucosal melanoma?
What is the most common type of mucosal melanoma?
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Which type of skin cancer typically appears as a small, painless bump that may be shiny?
Which type of skin cancer typically appears as a small, painless bump that may be shiny?
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What type of basal cell carcinoma is characterized by a thin, pink plaque with a pearly border?
What type of basal cell carcinoma is characterized by a thin, pink plaque with a pearly border?
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Which type of skin cancer might be mistaken for melanoma due to its dark, irregular pigmentation?
Which type of skin cancer might be mistaken for melanoma due to its dark, irregular pigmentation?
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Study Notes
Superficial Spreading Melanoma
- Most common type of melanoma
- 70–80% of all melanoma cases
- Spreads horizontally across skin before growing vertically
Lentigo Maligna Melanoma
- Develops from a lentigo maligna (slow-growing, flat, coloured patch of skin)
- Occurs when melanoma cells invade deeper skin layers
- Often found on the face and neck of older people
Nodular Melanoma
- Can mimic benign conditions like blood blisters and acne
- Grows beneath the skin, making it hard to see
- One of the more invasive skin cancers
Acral Lentiginous Melanoma
- Commonly found on the foot of people with darker skin
- Begins as a uniform brownish mark, becomes darker and wider with a blurred irregular edge
- Found on palms of the hands, soles of the feet, or under the nails
- May become bumpy and ulcerate
Mucosal Lentiginous Melanoma
- Rare and aggressive cancer that develops in the moist membranes lining the inside of the body
- Most common type of mucosal melanoma
- Develops in the mucous membranes of the body
Basal Cell Carcinoma (BCC)
- Most common type of skin cancer
- Usually caused by exposure to UV rays
- Can appear as a small, painless bump or raised area of skin, shiny or with small blood vessels
Nodular Basal Cell Carcinoma
- Most common type of BCC
- Appears as a pink, pearly, or flesh-colored, raised bump or nodule on the skin
- Often has visible blood vessels around it
- Commonly found on the face, especially the nose, cheeks, forehead, eyelids, and nasolabial folds
Superficial Basal Cell Carcinoma
- Appears as a thin, pink plaque, papule, or macule with a pink, pearly border
- Common, relatively minor skin cancer
- Usually caused by exposure to the sun's ultraviolet rays
Pigmented Basal Cell Carcinoma
- Occurs when melanin and melanocytes are mixed with tumor cells
- More common in people with darker skin, particularly Asians
- Can be mistaken for melanoma due to its dark, irregular pigmentation
Morpheaform Basal Cell Carcinoma
- Rare, aggressive subtype of skin cancer
- Also known as sclerosing or fibrosing BCC
- Most often occurs on the face and neck
- Smooth, flat, or slightly depressed, white or flesh-colored plaques with ill-defined borders
Keratotic Basal Cell Carcinoma
- Rare variant of basal cell carcinoma
- Characterized by keratin formation in the center of tumor islands
- Also known as pilar BCC
- Most common, least aggressive, least likely to metastasize
Actinic Keratosis (AK) - Precancerous Skin Condition
- Rough, scaly patches or bumps caused by long-term sun exposure
- Appears as small, scaly spots, raised bumps, or a rough, raised patch of skin
- Can be red, pink, skin-colored, or gray
- Can cause bleeding, burning, stinging, or itching
- Usually appears on the face, lips, ears, back of hands, forearms, scalp, and neck
Risk Factors for Actinic Keratosis
- Fair or light complexion
- Blond or red hair
- Blue or green eyes
- History of multiple or severe sunburns
- Weakened immune system
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Description
This quiz explores the different types of melanoma, including superficial spreading melanoma, lentigo maligna melanoma, nodular melanoma, acral lentiginous melanoma, and mucosal lentiginous melanoma. Test your knowledge on the characteristics and implications of each type of melanoma.
