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Attempts to localize a carcinoma of the endometrium with the use of short radio waves

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A. Ingelman-Sundberg, M.D., A. Odeblad, M.D. · 1965

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1965 medical research used radiofrequency radiation to locate tumors, proving RF energy penetrates and interacts with human tissue.

Plain English Summary

Summary written for general audiences

This 1965 medical study investigated using short radio waves (radiofrequency radiation) to locate endometrial cancer tumors inside the body. The research explored whether RF energy could be used as a diagnostic tool by measuring how different tissues absorb electromagnetic radiation. This represents early medical applications of the same radiofrequency technology now used in cell phones and wireless devices.

Why This Matters

This pioneering 1965 research reveals how the medical field has long understood that radiofrequency radiation interacts with human tissue in measurable ways. The fact that doctors could use RF energy to distinguish between healthy and cancerous endometrial tissue demonstrates the biological activity of these electromagnetic fields. What's particularly relevant today is that this diagnostic application relied on the principle that different tissues absorb RF energy differently - the same mechanism that creates heating effects in your body when you use a cell phone. The reality is that if RF radiation can penetrate tissue deeply enough to locate internal tumors, it's certainly reaching and affecting the organs in your body during everyday wireless device use. While this study focused on potential medical benefits, it underscores that radiofrequency radiation is not biologically inert as the wireless industry often claims.

Figures from the Original Paper

Diagrams extracted from the original research document.

diagramPage 2 - AI-described figure: Figure 1: Front view showing the control panel of an RF spectrometer for myxine, which is adhered to the RF block and can be dipped into a water bath.
p. 2 of the original PDF
diagramPage 3 - Fig. 2: Equipment for intracavitary radiofrequency investigations in vivo at curettage.
p. 3 of the original PDF
diagramPage 4 - AI-described figure: Fig. 3: Inside view of the box of the RF exploration unit showing components such as a twin-T bridge and transistor amplifier.
p. 4 of the original PDF
diagramPage 5 - Figure 4 illustrates RF sound introduced into an excised uterus (Case R118/63), showing residual cancer and radiation treatment effects.
p. 5 of the original PDF
graphPage 6 - Figure 5. Frequency-nonspecific RF absorption in water, myometrium and endometrium from rabbits, investigated in vitro.
p. 6 of the original PDF
diagramPage 7 - AI-described figure: Fig. 7: Exirpated, bisected uterus from Case 9106-63 (right), showing the untreated endometrial carcinoma to the right in fundus.
p. 7 of the original PDF

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 10-105 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 10-105 MHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Study Details

To investigate whether radiofrequency absorption can be used to localize an endometrial carcinoma.

In vitro and in vivo experiments were conducted using a radiofrequency generator (Philips 28983) con...

Frequency-nonspecific absorption was found in water and saline between 10 and 100 megacycles per sec...

The study demonstrates that radiofrequency absorption can be used to differentiate between normal and cancerous tissues in the uterus. The results suggest that it may be possible to determine the surface spread of an endometrial carcinoma using intrauterine RF scanning.

Cite This Study
A. Ingelman-Sundberg, M.D., A. Odeblad, M.D. (1965). Attempts to localize a carcinoma of the endometrium with the use of short radio waves.
Show BibTeX
@article{attempts_to_localize_a_carcinoma_of_the_endometrium_with_the_use_of_short_radio__g3560,
  author = {A. Ingelman-Sundberg and M.D. and A. Odeblad and M.D.},
  title = {Attempts to localize a carcinoma of the endometrium with the use of short radio waves},
  year = {1965},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Researchers applied short radiofrequency waves to locate endometrial tumors by measuring how different tissues absorbed the electromagnetic energy. Cancerous tissue absorbed RF radiation differently than healthy tissue, allowing doctors to identify tumor locations.
The ability to locate internal endometrial tumors with radiofrequency waves demonstrates that RF radiation penetrates deeply into body tissue. This proves electromagnetic fields reach internal organs, not just surface skin layers.
This study showed different tissues absorb radiofrequency energy at different rates. Since modern wireless devices emit similar RF radiation, they create varying absorption patterns throughout your body, potentially affecting organs differently.
The 1965 research focused on diagnostic applications rather than safety concerns. Medical professionals were exploring RF radiation's ability to interact with tissue, but comprehensive safety studies of chronic low-level exposure came later.
Both applications use radiofrequency radiation that penetrates human tissue. While the 1965 medical procedure was brief and controlled, cell phones expose users to similar RF energy for hours daily in close contact with the body.