Bubo
Enable an agent to recognise a suspected bubo, describe its local state and evolution, and connect it to appropriate clinical assessment without treating the swelling itself as a confirmed disease diagnosis.
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.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise a suspected bubo, describe its local state and evolution, and connect it to appropriate clinical assessment without treating the swelling itself as a confirmed disease diagnosis.
In its medical sense, a bubo is a markedly enlarged, inflamed lymph node, typically in the groin, armpit or neck, associated with infection and sometimes progressing to suppuration.
It can be Assemble the examination and imaging evidence supporting or challenging a bubo label.; Track the same nodal swelling across visits using location, dimensions and local findings.; Associate the swelling with plausible drainage-territory lesions and exposure history without asserting causation.; Link a specimen and its results to the exact sampled swelling.; Flag documented deterioration for clinical review under the relevant disease or triage model.; Record clinician-directed sampling or local treatment and compare subsequent observations..
Distinguishing features
Require evidence of nodal involvement; a lump in the groin alone does not establish a bubo.
Record inflammatory features separately from enlargement, so an unexplained enlarged node is not automatically labelled a bubo.
Distinguish the local sign from its cause: buboes occur in plague and in lymphogranuloma venereum, so the label alone does not identify the pathogen. [CDC plague signs](https://www.cdc.gov/plague/signs-symptoms/index.html), [CDC LGV guidance](https://www.cdc.gov/std/treatment-guidelines/lgv.htm).
Assess suppuration explicitly rather than assuming that every bubo contains an established drainable collection.
Do not restrict recognition to the groin: plague-associated buboes can involve axillary or cervical nodes. [CDC clinical diagnosis](https://www.cdc.gov/plague/hcp/diagnosis-testing/index.html).
Scope
+ Evidence that a swelling involves lymph nodes and warrants the term bubo
+ Anatomical basin, laterality and involvement of individual nodes or a nodal group
+ Pain, tenderness, enlargement, skin changes and evidence of suppuration
+ Onset, progression, rupture and local resolution
+ Links to suspected causes, diagnostic evidence and clinician-directed actions
- Bubo as an owl genus or another nonmedical name
- General lymph-node anatomy and all forms of lymphadenopathy
- Complete disease models for plague, lymphogranuloma venereum or other causes
- Independent models of hernias, skin abscesses and other regional masses
- Antimicrobial prescribing, procedural technique and public-health case management
Characteristics
- Nodal localisation
- Affected lymph-node basin, side and supporting examination or imaging observation Separates a nodal manifestation from neighbouring masses and links it to a drainage territory.
- Extent of nodal involvement
- Single discernible node; multiple discernible nodes; confluent nodal swelling; uncertain Prevents a regional swelling from being represented as an unjustifiably precise count of nodes.
- Swelling dimensions
- Millimetres along specified axes, with method and observation time Supports comparison over time while distinguishing external swelling from imaging measurements of a node.
- Pain and tenderness
- Patient-reported pain on a named scale; separately recorded elicited tenderness Keeps subjective pain distinct from an examination finding.
- Local inflammatory features
- Warmth, erythema and oedema individually present, absent or not assessed Makes the basis for describing the swelling as inflammatory reviewable.
- Suppuration evidence
- Not assessed; suspected clinically; collection demonstrated; purulent material observed; no collection demonstrated Separates suspicion of pus from direct evidence and supports cause-specific procedural review.
- Overlying skin integrity
- Intact; ulcerated; spontaneously draining; procedural opening; uncertain Distinguishes spontaneous progression from changes caused by intervention.
- Clinical trajectory
- New; enlarging; stable; regressing; recurrent; unresolved, with dated observations Makes progression and response visible without equating local improvement with cure.
- Etiological attribution
- Linked suspected or confirmed cause, evidence, author and date Prevents an appearance-based hypothesis from becoming an unsupported diagnosis.
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.bubo
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 13 findings · 21 questions.
Bubo recognition Establish the intended medical sense and the evidence needed to apply it to a particular swelling.
The registry provides no definition, and recognising a bubo requires more than recognising a regional lump.
Term and threshold
Make the adopted meaning and clinical threshold explicit.
Bubo label basis
Record who applied the label, the definition they used and whether it denotes a suspected or established clinical sign.
- Which definition of bubo is being used, and does it require pain, acute inflammation or suppuration? definition
- Who applied the term, and what examination or documentary evidence supported it? provenance
Nodal origin
Distinguish lymph-node swelling from other masses in the same anatomical region.
Nodal versus neighbouring mass
Capture the evidence of nodal origin and unresolved alternatives such as a hernia or a non-nodal abscess.
- What supports lymph-node involvement rather than a skin, soft-tissue or hernial lesion? boundary
- What additional assessment has the clinician identified as necessary if nodal origin remains uncertain? action
Regional anatomy and local state Describe which nodes are involved and the physical state of the swelling.
Location, extent and tissue changes determine what is being followed and whether observations concern the same manifestation.
Basin and extent
Locate the swelling and make its measured extent reproducible.
Mapped nodal swelling
Identify basin, laterality, discernible nodes and dimensions without confusing a nodal group with one node.
- Which basin and side are affected, and are individual nodes distinguishable within the swelling? measurement
- Do recorded dimensions describe a node, a collection or the whole external swelling, and by what method? measurement
Inflammation and breakdown
Separate symptoms, inflammatory signs, suspected collections and skin disruption.
Local tissue state
Record pain, tenderness, warmth, skin changes and the evidence for pus or drainage as separate observations.
- Which inflammatory features are reported by the patient and which were observed on examination? measurement
- Is suppuration suspected or demonstrated, and is any opening spontaneous or procedure-related? boundary
Cause and diagnostic evidence Connect the local sign to possible causes while preserving the distinction between hypothesis and confirmation.
A bubo does not identify its cause; causal interpretation must remain tied to history, examination and testing.
Drainage and exposure context
Relate the nodal basin to relevant lesions, exposures and symptom timing.
Causal context
Record clinically relevant entry-site lesions and exposure history as evidence for competing explanations.
- Is there a skin or mucosal lesion in the relevant drainage territory, and how does its timing relate to the swelling? provenance
- Which documented exposures support each proposed cause, and which alternatives remain unresolved? boundary
Specimen and attribution
Connect diagnostic results to their actual specimen and anatomical source.
Traceable cause assessment
Keep sample identity, test limitations and clinician interpretation attached to each etiological claim.
- Was the tested material obtained from this bubo, another lesion or a systemic specimen, and when? provenance
- What does the result establish about this swelling, and what uncertainty remains because of timing, prior treatment or test limitations? boundary
Course and clinical actions Track progression and connect changes in the bubo to accountable clinical decisions.
Local progression, systemic illness and procedural needs must be assessed together without embedding a universal treatment rule for every bubo.
Trajectory and escalation
Relate local change to the patient's wider clinical state and the relevant escalation pathway.
Local and systemic course
Maintain separate timelines for nodal swelling and systemic symptoms so local appearance does not substitute for assessment of the patient.
- How rapidly have dimensions, pain and skin integrity changed between dated observations? measurement
- Do concurrent systemic symptoms or exposure findings trigger urgent review under the linked clinical pathway? action
Intervention and follow-up
Record the reason for local intervention and define how its outcome will be assessed.
Cause-specific local management
Document clinician-directed sampling, aspiration, drainage or observation with the suspected cause, applicable guidance and follow-up criteria.
- What clinician decision and cause-specific guidance justify the proposed local action? action
- What follow-up findings would demonstrate local resolution or require reassessment of persistent or recurrent swelling? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- No sense was supplied; the medical meaning is assumed, but the registry identity should be checked against the owl genus.
- The listed kinds distinguish underlying infections rather than a formal exhaustive classification.
- No diagnostic code or numerical size threshold is asserted from recall.
- Which of these check these first hold for the sense of Bubo this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Plague-associated bubo
- Chancroid-associated bubo
- Lymphogranuloma venereum-associated bubo
- Which of these kinds and varieties hold for the sense of Bubo this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Clinical recognition of regional lymph-node inflammation in the assessment of infectious disease.
- A characteristic clinical finding in bubonic plague.
- Assessment of inguinal lymph-node involvement in chancroid and lymphogranuloma venereum.
- Which of these real-world use hold for the sense of Bubo this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Suppuration, with abscess formation and possible spontaneous drainage.
- An underlying infection may disseminate; plague can progress to septicemic or pneumonic disease.
- Mistaking any enlarged lymph node for a bubo can obscure other infectious or noninfectious causes.
- Which of these failure modes and hazards hold for the sense of Bubo this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Lymphadenopathy - Lymphadenopathy broadly describes abnormal lymph nodes; a bubo specifically denotes pronounced inflammatory enlargement associated with infection.
- Lymphadenitis - Lymphadenitis is inflammation of lymph nodes generally; a bubo is a conspicuous localized manifestation.
- Bubonic plague - Bubonic plague is a disease caused by Yersinia pestis; a bubo is a clinical finding that can also occur in other infections.
- Abscess - An abscess is a localized collection of pus; a bubo involves a lymph node and need not have suppurated.
- Bubo (owl genus) - The capitalized taxonomic name denotes a genus of owls, rather than a pathological lymph-node swelling.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of Bubo this model covers, and on what evidence? provenance
What the second pass must settle
- Does the originating registry record confirm the medical sense of Bubo, and what explains its placement in XCT / XCT.STA?
- Which terminology authorities require acute pain, tenderness or suppuration for the bubo label, and which use it more broadly?
- Should one manifestation encompass an entire confluent nodal group, or should individually identifiable nodes be represented separately within it?
- Which validated observation methods and change thresholds support meaningful follow-up across different nodal basins and causes?
- Which existing Vercy models already own lymphadenitis, the relevant diseases and clinical escalation, so this entry can link to them without duplicating their content?