nevus
Let an agent give general, sourced information about moles and nevi, explain warning signs that should prompt a clinician visit, and avoid diagnosing individual skin lesions.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent give general, sourced information about moles and nevi, explain warning signs that should prompt a clinician visit, and avoid diagnosing individual skin lesions.
A usually benign, localised growth or mark on the skin or mucosa, most commonly a melanocytic nevus (mole) formed by clusters of pigment cells; other kinds include congenital nevi, dysplastic nevi and some birthmarks.
What it is for: A common skin feature relevant to dermatology and skin cancer prevention.
It can be explain what moles are in general terms; describe warning signs that need medical review; find sun protection guidance; find skin check services.
Distinguishing features
Usually benign
Very common
Can change over life
A small share of melanomas arise in existing moles
What it looks like
Brown, black, pink or skin-coloured spots, flat or raised, usually round and even.
How it is recognised
Common moles are usually small and even in colour
Changing moles need review
Freckles and age spots are different
Related models
is a kind of - category
is related to - differential concern
is examined by - specialist
is protected by - prevention
In practice
Families and kinds
common acquired melanocytic nevi
congenital nevi
dysplastic or atypical nevi
blue and Spitz nevi
non-melanocytic nevi and birthmarks
Standards and regulation
Clinical guidelines on suspected skin cancer referral
Sunscreen labelling standards
Failure modes and hazards
Ignoring changing or bleeding moles
Agents attempting to diagnose from descriptions or images
Unregulated mole removal
Also called
+14
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Warning When to see a clinician.
Changes need review.
Signs
ABCDE.
Signs
Warning signs.
- Does the mole show change in size, shape or colour, irregular borders, bleeding or itching? boundary
- Should the person book a prompt appointment with a doctor? action
Diagnosis
No remote diagnosis.
Diagnosis
Diagnosis limits.
- Is the user asking the agent to say whether their mole is cancer? boundary
- How should the agent explain that only a clinician can assess it? action
Information General facts.
Sourced information only.
Types
Kinds of nevi.
Types
Nevus types.
- What types of nevi do dermatology sources describe? provenance
- Which are usually harmless? provenance
Children
Birthmarks.
Children
Birthmarks.
- What do health services say about large birthmarks in children? provenance
- When should they be reviewed? provenance
Prevention Sun safety.
Sun protection reduces risk.
Sun
Protection.
Sun
Sun protection.
- What sun protection do health authorities recommend? provenance
- Does the UV index today call for extra care? provenance
Checks
Self-checks.
Checks
Skin self-checks.
- How do health services suggest checking skin regularly? provenance
- Which services offer skin checks? provenance
Removal Treatment choices.
Removal belongs to clinicians.
Clinical
Regulated care.
Clinical
Clinical removal.
- Who can lawfully remove moles here? provenance
- Is removed tissue sent for testing? provenance
DIY
Home removal risks.
DIY
Home removal.
- Is the user considering removing a mole at home or with unregulated products? boundary
- How should the agent explain the risks and refer to a clinician? action
What the second pass must settle
- Should nevus types be separate entries?
- How should skin check services be localised?
- How should rare syndromes be linked?