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Research draft

nevus

vr.tr.nevus · XCT.STA

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.

Thing Registry Cross-cutting context

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

skin benign neoplasm

is related to - differential concern

melanoma

is examined by - specialist

dermatologist

is protected by - prevention

sun protection

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

benign skin melanocytic nevusBecker's nevusNeurocutaneous melanosisdysplastic nevusconjunctival nevusintradermal nevusCLOVES syndromebirthmarkmelanocytic nevusepidermal nevusacral nevusAngora hair nevuscongenital nevus of skinsegmental outgrowth-lipomatosis-arteriovenous malformation-epidermal nevus syndromecongenital panfollicular nevuslinear verrucous nevus syndromePENS syndromedidymosis aplasticosebaceaSCALP syndromeNEVADA syndromepalpebral nevusMucinous nevusNevus comedonicusporokeratotic eccrine ostial and dermal duct nevusWoolly hair nevusregressing nevusrecurrent nevusPigmented hairy epidermal nevus syndromefemale genitalia nevusbeauty spotcafé au lait spotOral melanocytic neviNevus spilusJunctional nevuscockade nevusblue nevusnevus cell nevicongenital melanocytic nevuspigmented spindle cell nevusPseudomelanoma

+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.

  1. Does the mole show change in size, shape or colour, irregular borders, bleeding or itching? boundary
  2. Should the person book a prompt appointment with a doctor? action

Diagnosis

No remote diagnosis.

Diagnosis

Diagnosis limits.

  1. Is the user asking the agent to say whether their mole is cancer? boundary
  2. 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.

  1. What types of nevi do dermatology sources describe? provenance
  2. Which are usually harmless? provenance

Children

Birthmarks.

Children

Birthmarks.

  1. What do health services say about large birthmarks in children? provenance
  2. When should they be reviewed? provenance
Prevention Sun safety.

Sun protection reduces risk.

Sun

Protection.

Sun

Sun protection.

  1. What sun protection do health authorities recommend? provenance
  2. Does the UV index today call for extra care? provenance

Checks

Self-checks.

Checks

Skin self-checks.

  1. How do health services suggest checking skin regularly? provenance
  2. Which services offer skin checks? provenance
Removal Treatment choices.

Removal belongs to clinicians.

Clinical

Regulated care.

Clinical

Clinical removal.

  1. Who can lawfully remove moles here? provenance
  2. Is removed tissue sent for testing? provenance

DIY

Home removal risks.

DIY

Home removal.

  1. Is the user considering removing a mole at home or with unregulated products? boundary
  2. 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?