RARE DISEASERESEARCH ATLAS

ORPHA:458768

Papillary intralymphatic angioendothelioma

low confidenceDisorder

Also known as: Dabska tumor · PILA · Primary intralymphatic angioendothelioma

Publications

509

Trials

0

Interventional, condition-specific

Researchers

949

Distinct authors in sample

Gene link

Readiness

1/6

Stages with a signal

Clinical definition (Orphanet)

A rare vascular tumor characterized by an ill-defined, slowly growing, asymptomatic cutaneous plaque or nodule mostly involving the limbs, in fewer cases the trunk. The tumor is composed of lymphatic-like channels with prominent intraluminal papillary tufts with hyaline cores lined by hobnail endothelial cells. It is locally aggressive, while metastasis is rare. Infants and children are much more often affected than adults.

How rare: <1 / 1 000 000 — fewer than one in a million. In a city the size of Kolkata, that might mean on the order of fifteen people.

Orphanet entry

Cross-references

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

Additional Mondo synonyms (5)

Dabska tumour · malignant endothelial papillary angioendothelioma · papillary Endovascular angioendothelioma · papillary intralymphatic angioendothelioma · pila

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.”

1/6 stages with a signal

Research-stage checklist from open sources (GenCC, literature, Monarch when enriched, ClinicalTrials.gov). Not a prognosis or care recommendation.

  1. Gene identifiedNot found

    No GenCC disease–gene assertion in this build

  2. LiteraturePresent

    509 matched papers (256 in last 10 years) Source

  3. Phenotype characterisedNot found

    No HPO disease–phenotype associations via Monarch for these Mondo IDs

  4. Animal modelNot found

    No Alliance genotype “model of” associations via Monarch for these Mondo IDs

  5. Orphan designationNot found

    No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source

  6. Interventional trialNot found

    No matched interventional trial under our ClinicalTrials.gov rules

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)

None returned for this Mondo ID. That often means “not linked under this ID,” not “no clinical features.”

Animal models (Monarch / Alliance)

None returned for this Mondo ID. Empty here is not proof that no model organism work exists under another name or gene.

Monarch fetch 2026-07-29

Therapies

Designations, candidates, and chemicals

FDA OOPD and EMA orphan designations, Open Targets clinical candidates, and CTD chemical associations via MyDisease.info. These never change the interventional-trial headline.

Orphan designation (FDA · EMA)

No designation matched this disease via UMLS or preferred name on the FDA OOPD mirror or EMA orphan register. Absence here is not proof that none exists under another wording.

Open Targets candidates

No drugs or clinical candidates returned for this Mondo ID on Open Targets.

CTD chemicals (MyDisease.info)

No CTD chemical associations returned for this Mondo ID.

Literature

Is anyone studying this?

509

509 papers have been published on this condition. That is a real research literature — still far smaller than common diseases (breast cancer: over 700,000 papers). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.

509 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 59 (publications denominator n=3967).

256 in the last 10 years · low confidence

Phrase hits: 509 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

949

Distinct author names in 200 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
    Díaz-Flores L4 papers · 2024

    Department of Physical Medicine and Pharmacology, Faculty of Medicine, University of La Laguna, Tenerife, Spain.

    Papers in Europe PMC
  2. 02
    Li B4 papers · 2026

    Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China. pumchlibinglu@163.com.

    Papers in Europe PMC
  3. 03
    Fletcher CDM3 papers · 2026

    Department of Pathology, Brigham and Women's Hospital, Boston, MA.

    Papers in Europe PMC
  4. 04
    Fraitag S3 papers · 2022

    Department of Pathology, Necker-Enfants Malades Hospital, APHP, 75015 Paris, France.

    Papers in Europe PMC
  5. 05
    Hornick JL3 papers · 2026

    Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, USA. jhornick@bwh.harvard.edu.

    Papers in Europe PMC
  6. 06
    Li Y3 papers · 2024

    Department of Cardiothoracic Surgery, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, China.

    Papers in Europe PMC
  7. 07
    Miller JB3 papers · 2025

    From the Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD.

    Papers in Europe PMC
  8. 08
    Requena L3 papers · 2021

    Department of Dermatology, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain. lrequena@fjd.es

    Papers in Europe PMC
  9. 09
    Abdelwahed M2 papers · 2024

    Department of Pathology and Laboratory Medicine, North Shore University Hospital and Long Island Jewish Medical Center, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health, Greenvale, NY, USA.

    Papers in Europe PMC
  10. 10
    Al-Rohil RN2 papers · 2024

    Department of Pathology, Duke University Medical Center, Durham, NC 27710-0001, USA.

    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).

Data as of 11 September 2026 · last trial check 11 September 2026

No matched interventional trials. This is true for 77.2% of diseases in the trials denominator (5501 of 7126). Here are the researchers publishing on it.

low confidence · 38.6th 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.

See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.

Other registries (secondary)

Broader net from EU CTIS, ISRCTN, and ICTRP when available — deduped against ClinicalTrials.gov IDs already counted above. Dual-model LLM relevance gates what we keep. These rows are not added to the interventional headline.

raw 0 · after dedupe 0 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 0 · dropped 0 · fetched 2026-07-30

Source notes: ictrp: Error: ICTRP public search unavailable (WHO portal is SPA-only; SOAP needs partnership). Tried: https://apps.who.int/tri

No secondary-registry studies passed dual-model relevance for this condition name (after dedupe).

Where to find support

Condition-specific patient organisations, when Orphanet lists them, are on the disease’s Orphanet page. We also link umbrella groups that support undiagnosed and ultra-rare families.

Orphanet entry for Papillary intralymphatic angioendothelioma — check Associations / patient organisations on that page.

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.

"Papillary intralymphatic angioendothelioma" OR "Dabska tumor" OR "Primary intralymphatic angioendothelioma" OR "Dabska tumour" OR "malignant endothelial papillary angioendothelioma" OR "papillary Endovascular angioendothelioma"

Run this search on Europe PMC

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

"Papillary intralymphatic angioendothelioma" OR "Dabska tumor" OR "Primary intralymphatic angioendothelioma" OR "Dabska tumour" OR "malignant endothelial papillary angioendothelioma" OR "papillary Endovascular angioendothelioma"

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

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

Run this search on ClinicalTrials.gov

Synonyms dropped by stoplist: PILA

Confidence reasoning

  • Preferred label is multi-word and distinctive
  • 1 synonym(s) dropped by stoplist (may under-count)
  • No label/synonym collisions with other diseases in this corpus
  • Publication count (509) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-27T16:52:31.272Z