Specialty 13

Pulmonology

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Pulmonology — Atlas

This specialty validates a distinct constitutional property of accountability (Volume II). Its canonical case, obligation architecture, and constitutional relationships are transcribed from the ratified specialty corpus.

Active constitutional concepts

Constitutional specialty
Canonical case
Constitutional property

Next: Review the canonical case and obligation architecture, then compare related specialties.

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Constitutional summary

Canonical case

Incidental Pulmonary Nodule Without Demonstrable Completion of Risk-Appropriate Surveillance or Diagnostic Resolution

Constitutional first cause

The Engine begins when: An imaging report documents an incidental pulmonary nodule whose characteristics create a recommendation or obligation for surveillance, specialist evaluation, or diagnostic testing. The Engine must not treat every pulmonary nodule as cancer or assume that every nodule requires invasive testing. Most nodules are benign, and recommended management may range from no follow-up to interval imaging, PET imaging, biopsy, or another evaluation depending upon the evidence. (American Lung Association)

Obligation architecture

1Event observed — Incidental pulmonary nodule documented on imaging.
2Obligation 1 — Finding classification — The report must describe the nodule sufficiently to support risk-appropriate management. — Evidence: imaging report, size, location, morphology, comparison studies.
3Obligation 2 — Actionable recommendation — Where follow-up is indicated, the report or responsible clinician must establish the recommended next step and interval. — Evidence: radiology recommendation, guideline rule, documented clinical plan.
4Obligation 3 — Result acknowledgement — The clinician responsible for acting on the finding must acknowledge it. — Evidence: inbox acknowledgement, signed note, result-routing record.
5Obligation 4 — Patient communication — The patient must be informed of the finding, its uncertainty, and the planned next step. — Evidence: portal message, call record, visit note, documented acknowledgement.
6Obligation 5 — Continuing ownership — A responsible actor must accept ownership of the surveillance or diagnostic pathway after the original encounter ends. — Evidence: accepted referral, primary-care acceptance, nodule-program enrollment, documented owner.
7Obligation 6 — Future action scheduled — The appropriate surveillance study, pulmonology evaluation, PET scan, biopsy, or other action must be ordered and scheduled. — Evidence: order, referral, appointment, future recall record.
8Obligation 7 — Due-date persistence — The obligation must remain visible until its future due date rather than disappearing when the encounter or order closes. — Evidence: active obligation record, reminders, escalation rule.
9Obligation 8 — Completion verified — The surveillance study or diagnostic action must actually occur. — Evidence: completed imaging, consultation, procedure report.
10Obligation 9 — Comparison and reinterpretation — The new evidence must be compared with prior imaging and used to determine whether the obligation is resolved, repeated, or escalated. — Evidence: comparative radiology report, updated risk assessment, clinical decision.
11Obligation 10 — Resolution or recurrence — The pathway must end in supported resolution or produce a new dated obligation. — Evidence: documented stability, continued surveillance plan, biopsy result, diagnosis, or justified discharge from follow-up.

Constitutional observations

Constitutional lesson

An incidental finding can create a durable obligation whose due date extends beyond the encounter that produced it. Reporting the finding is not the same as preserving responsibility for its resolution.

What The Engine makes visible

Every local system can appear correct: Radiology reported the nodule. The emergency physician discharged the patient appropriately for the presenting complaint. The recommendation appeared in the report. Primary care never knew it had inherited responsibility. Pulmonology never received an accepted referral. The future scan was never scheduled. No active system retained the obligation after the encounter closed. The failure is not that the finding was invisible. The finding was visible. The continuing obligation was not durably owned. That makes this a particularly clean demonstration of the distinction between information delivery and accountability. Constitutional-property mapping This case clearly exercises: CP-001 — Referral Continuity CP-003 — Dynamic Obligation Creation CP-004 — Preventive Obligation Execution CP-005 — Evidence-Dependent Obligation Gating It also strongly reinforces the provisional principle first observed in Pediatrics: Opportunity Preservation — second independent observation In the newborn-screening case, delayed action can eliminate the opportunity to intervene before irreversible harm develops. In the pulmonary-nodule case, the patient may be asymptomatic and the finding may remain indeterminate, but the purpose of surveillance is to preserve the opportunity to detect meaningful change while potentially curative options remain available. ACR materials specifically connect timely nodule follow-up with earlier lung-cancer detection and warn that incomplete follow-up can lead to later-stage diagnosis. (American College of Radiology) This is now a second, genuinely independent appearance of the same possible principle. I would still not approve it as a CP yet. Two demonstrations justify elevation from a passing observation to a tracked constitutional candidate, but not necessarily constitutional status. Candidate status update Opportunity Preservation First observed: Pediatrics — abnormal newborn screening. Independently repeated: Pulmonology — incidental pulmonary-nodule surveillance. Status: Recurring Candidate — Not Approved.

Constitutional relationships

Validated constitutional properties

Related specialties (shared properties)

Demonstration

No worked demonstration is provisioned for this specialty in this build. Occupational Medicine (Specialty 25) is the first domain and carries the worked demonstration; the constitutional architecture above is shared across specialties.