Evidence map›Paper›PMID 35223255›Full record

ReviewCureus2022

Tennis Courts in the Human Body: A Review of the Misleading Metaphor in Medical Literature.

Amogh Ananda Rao, Smilee Johncy

Abstract readReview
In one paragraph

Review in Cureus, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Nanoparticle-Based Pulmonary Immune Engineering.Annual review of chemical and biomolecular engineering · 2025
    Review
  2. Review
  3. Article
  4. Biopolymeric Inhalable Dry Powders for Pulmonary Drug Delivery.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Amogh Ananda RaoInternal Medicine, Jagadguru Jayadeva Murugarajendra (JJM) Medical College, Davangere, IND.
Smilee JohncyPhysiology, Jagadguru Jayadeva Murugarajendra (JJM) Medical College, Davangere, IND.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Medical literature is home to fancy descriptions, poetic metaphors, and ingenious comparisons. However, some comparisons can disguise the knowledge gap. Large surfaces in the human body, like the alveolar surface for gas exchange, villi for food absorption, and the endothelial lining of blood vessels, are frequently compared to a "tennis court." This narrative review explores this metaphor in detail, the discrepancies and factual inaccuracies across medical literature. It highlights the inappropriate use of Euclidean geometry and introduces fractal geometry, a language to define roughness.

Indexed as

alveolichaos theoryendotheliumfractalstennis courtsvilli

Identifiers

PMID35223255
PMCPMC8863270

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.