RARE DISEASERESEARCH ATLAS

ORPHA:280840

Congenital pulmonary airway malformation type 2

high confidenceSubtype of disorder

Also known as: CCAM type 2 · CPAM type 2 · Congenital cystic adenomatoid malformation of the lung type 2 · Congenital cystic adenomatous malformation of the lung type 2 · Congenital cystic disease of the lung type 2

Publications

89

58.8th percentile

Trials

0

Interventional, condition-specific

Researchers

575

Distinct authors in sample

Gene link

Readiness

2/6

Stages with a signal

Clinical definition (Orphanet)

A rare subtype of pulmonary airway characterized by a multicystic mass of non-functioning lung tissue, consisting of small cysts of less than 2 cm in diameter. The lesions have intracystic communications, can be connected to the tracheobronchial tree, and are usually unilateral, involving a single lobe. The condition often presents with respiratory distress in the period or in infancy. It is frequently associated with other severe anomalies, such as renal agenesis or dysgenesis, pulmonary sequestration, or cardiac abnormalities.

Orphanet entry

Cross-references

Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.

Additional Mondo synonyms (3)

congenital cystic adenomatoid malformation of the lung type 2 · congenital cystic adenomatous malformation of the lung type 2 · congenital cystic disease of the lung type 2

Research stages

Trial readiness signals

Where this condition sits on an open-data research pipeline — not how close a treatment is, and not medical advice. Empty stages often mean “not in these databases under this Mondo ID,” not “impossible.”

2/6 stages with a signal

No specific-condition interventional trial, but broader-category trials exist — discuss eligibility with a clinician.

  1. Gene identifiedNot found

    No GenCC disease–gene assertion in this build

  2. LiteraturePresent

    89 matched papers (66 in last 10 years) Source

  3. Phenotype characterisedNot checked

    Not yet enriched from Monarch / HPO

  4. Animal modelNot checked

    Not yet enriched from Monarch / Alliance

  5. Orphan designationNot checked

    FDA/EMA orphan-drug designation not enriched yet

  6. Interventional trialPartial

    None under the specific name; 2 for broader category congenital pulmonary airway malformation

Biology

Genes and phenotypes

Gene–disease validity from GenCC, plus phenotypes and animal models joined from Monarch Initiative via Mondo ID — not a clinical diagnosis aid.

Do we know what causes it?

Not yet — the cause hasn't been pinned down in GenCC.

No strong gene–disease assertion joined for this Orphanet entity.

Phenotypes (Monarch / HPO)

Not enriched in this build — Monarch phenotype joins were not run for this record.

Animal models (Monarch / Alliance)

Not enriched in this build.

Literature

Is anyone studying this?

89

89 papers have ever been published on this condition (under this name). For scale, breast cancer has over 700,000. Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=5449) is 41.

89 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 41 (publications denominator n=5449).

66 in the last 10 years · high confidence · 58.8th percentile (publications denominator)

Phrase hits: 89 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

575

Distinct author names in 89 sampled papers — named people below.

Who's working on it?

No interventional trial matched this name; these authors publish on it in the sampled literature — a practical starting point for contact.

  1. 01
    Calcaterra V3 papers · 2020

    Pediatric Unit, Department of Internal Medicine, University of Pavia and Department of Maternal and Children's Health, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.

    Papers in Europe PMC
  2. 02
    Ciet P2 papers · 2025

    Rotterdam, The Netherlands

    Papers in Europe PMC
  3. 03
    Dehner LP2 papers · 2026

    Lauren V. Ackerman Laboratory of Surgical Pathology, St. Louis Children's Hospital, Washington University Medical Center, St. Louis, MO, USA.

    Papers in Europe PMC
  4. 04
    Geiger J2 papers · 2025

    Department of Diagnostic Imaging, University Children's Hospital Zürich, Steinwiesstr. 75, CH 8032, Zürich, Switzerland.

    Papers in Europe PMC
  5. 05
    Hermelijn SM2 papers · 2021

    Department of Paediatric Surgery, Erasmus Medical Centre, Sophia Children's Hospital, Rotterdam, The Netherlands.

    Papers in Europe PMC
  6. 06
    Hill DA2 papers · 2026

    Lauren V. Ackerman Laboratory of Surgical Pathology, St. Louis Children's Hospital, Washington University Medical Center, St. Louis, MO, USA.

    Papers in Europe PMC
  7. 07
    Levy BD2 papers · 2019

    Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. Electronic address: blevy@partners.org.

    Papers in Europe PMC
  8. 08
    Nicholson AG2 papers · 2021

    Department of Histopathology, Royal Brompton and Harefield NHS Foundation Trust, London, UK.

    Papers in Europe PMC
  9. 09
    Pelizzo G2 papers · 2020

    Pediatric Surgery Unit, Children's Hospital, Istituto Mediterraneo di Eccellenza Pediatrica, Palermo, Italy.

    Papers in Europe PMC
  10. 10
    Pereira TN2 papers · 2015

    Hepatic Fibrosis Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.

    Papers in Europe PMC

Clinical research

Is a treatment being tested?

0

interventional trials for this specific condition

No interventional trial testing a treatment matched this specific condition name on ClinicalTrials.gov (observational studies and pan-disease registries are listed separately when present). 2 trials are registered for congenital pulmonary airway malformation, the broader category — shown separately because they may or may not enrol this specific subtype.

Data as of 27 July 2026

No matched interventional trials. This is true for 73% of diseases in the trials denominator (5114 of 7003). Here are the researchers publishing on it.

high confidence · 36.5th percentile (trials denominator)

Recruiting interventional trials

From the matched ClinicalTrials.gov set

No interventional trial testing a treatment was found for this specific condition name on ClinicalTrials.gov.

2 interventional trials matched congenital pulmonary airway malformation, the broader category — listed below. Those studies are not counted in the condition-specific total.

Broader category: congenital pulmonary airway malformation

2

Interventional trials for the parent category, exclusive of NCT IDs already counted above. Eligibility for this subtype is not guaranteed.

Worth raising with a clinician. How we count trials.

Recruiting under the broader category

Where to find support

We do not yet link condition-specific patient organisations. These umbrella groups support undiagnosed and ultra-rare families:

India — NPRD

Last verified 2026-07-26

This ORPHAcode is not on our curated NPRD list (direct or Mondo-parent match). That does not decide clinical eligibility; families in India should ask a notified Centre of Excellence about current coverage.

Hand-curated for this project. ORPHAcode mappings are best-effort and may be incomplete or imprecise for umbrella categories. Parent (Mondo) matches mean the policy lists a broader category — confirm eligibility with a Centre of Excellence. Financial entitlements summarised from public policy statements and may change. This is not official government guidance.

How we counted this

Europe PMC query (preferred label + any corrected label + Orphanet and Mondo exact synonyms, stoplisted; unioned with resolved MeSH labels when available). UMLS / OMIM / NCIT cross-references are stored on the overview but are not added to the query string.

"Congenital pulmonary airway malformation type 2" OR "CCAM type 2" OR "CPAM type 2" OR "Congenital cystic adenomatoid malformation of the lung type 2" OR "Congenital cystic adenomatoid malformation of lung type 2" OR "Congenital cystic adenomatous malformation of the lung type 2" OR "Congenital cystic adenomatous malformation of lung type 2" OR "Congenital cystic disease of the lung type 2" OR "Congenital cystic disease of lung type 2"

Run this search on Europe PMC

ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):

"Congenital pulmonary airway malformation type 2" OR "CCAM type 2" OR "CPAM type 2" OR "Congenital cystic adenomatoid malformation of the lung type 2" OR "Congenital cystic adenomatoid malformation of lung type 2" OR "Congenital cystic adenomatous malformation of the lung type 2" OR "Congenital cystic adenomatous malformation of lung type 2" OR "Congenital cystic disease of the lung type 2" OR "Congenital cystic disease of lung type 2"

Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.

Parent-category trials query:

"congenital pulmonary airway malformation"

Query health: ok — strategies attempted: phrase; with hits: phrase

Run this search on ClinicalTrials.gov

Confidence reasoning

  • Preferred label is multi-word and distinctive
  • No synonyms dropped by stoplist
  • No label/synonym collisions with other diseases in this corpus

Ingested 2026-07-27T11:58:19.563Z