A hidden organ behind the nose discovered by accident

Researchers who were studying an entirely different subject

In 2020, a team of Dutch scientists was conducting research focused on prostate cancer, a medical field that seemingly has nothing to do with facial anatomy. Yet it was during this very work, thanks to an ultra-sensitive imaging technique that was still unprecedented at the time, that these researchers spotted a structure until then completely unknown to modern medical science.

This structure, a pair of salivary glands nestled behind the nose, at the exact spot where the nasal cavity meets the throat, had remained invisible for decades of anatomical study. This kind of accidental discovery, though rare in contemporary medicine, is a reminder that the human body still holds a few secrets despite centuries of thorough scientific exploration.

The researchers behind this finding had absolutely not anticipated such a discovery when designing their initial study. Their primary goal was to improve the detection of metastases linked to prostate cancer, rigorous medical work that ended up, almost by chance, revealing a missing piece of human anatomy as a whole.

An imaging technology behind the finding

The discovery would not have been possible without a tomography imaging technique combined with a specific radioactive tracer, originally designed to detect prostate cancer cells with unprecedented precision. This method, far more sensitive than conventional imaging techniques, revealed glandular structures that had until then been invisible even to the most experienced radiologists.

This anecdote shows just how much technological advances in one medical field can sometimes produce completely unexpected results in another, turning research on prostate cancer into a major discovery for human anatomy as a whole. Surprising to realize that a simple radioactive tracer, designed for an entirely different clinical use, could reveal a completely new anatomical structure.

This kind of cutting-edge imaging technology keeps improving year after year, suggesting more similar discoveries lie ahead as instruments become capable of detecting ever smaller and more discreet structures inside the human body. Researchers working with these tracer-based scanning methods note that resolution has improved dramatically over just the past decade, meaning structures that were once statistically invisible on older scanners can now be picked out with confidence, provided someone happens to be looking closely enough at the right moment.

A particularly discreet location

Named the tubarial salivary glands, these structures sit in a hard-to-reach anatomical region, hidden behind the nose, precisely where the upper airways meet the throat. This particularly discreet location largely explains why these glands escaped entire generations of anatomists, despite repeated dissections of human bodies over the centuries.

The region where these glands are tucked away corresponds to an area called the nasopharynx, a portion of human anatomy that is relatively difficult to examine directly, even during a standard clinical exam performed by a doctor specializing in the upper airways.

The salivary glands already known to medicine, such as the parotid or submandibular glands, sit in far more accessible areas and had therefore been mapped long ago. The region where these new tubarial glands hide, by contrast, requires particularly fine imaging techniques to be explored with precision.

A function still under study

The exact role of these tubarial salivary glands is still being studied by the scientific community, even though their presumed function resembles that of other salivary glands, namely producing secretions meant to lubricate and protect the surrounding mucous membranes. This hypothesis, while plausible, still requires further research before it can be fully confirmed through rigorous, long-term clinical studies.

Some researchers also suggest these glands may play a role in protecting against certain upper airway infections, by maintaining constant moisture in an anatomical zone particularly exposed to outside pathogens entering through the nose and mouth.

Astonishing to realize that such a functional structure could remain unknown for so long, even though the region where it sits is routinely examined during many common medical procedures.

The recurring problem of dry mouth after treatment

This discovery carries particular significance for patients treated with radiotherapy for head and neck cancers, a population frequently facing a painful and long-lasting side effect: chronic dry mouth, also known as xerostomia. This symptom, far from trivial, significantly affects patients' quality of life long after their cancer treatment ends.

Head and neck cancers represent a fairly common category of tumors worldwide, often treated with a combination of surgery, chemotherapy, and targeted radiotherapy. The latter, while effective at eliminating cancer cells, inevitably damages some of the surrounding healthy tissue, including the glands that produce saliva.

Chronic xerostomia can make chewing, swallowing, and even speaking normally difficult, in addition to increasing the risk of tooth decay and recurring oral infections. This problem, long considered an almost inevitable consequence of head and neck radiotherapy, could now be partly avoided thanks to this new anatomical knowledge.

Toward more precise, less invasive radiotherapy

By precisely identifying the location of these tubarial salivary glands, radiation oncologists could now adjust their treatment protocols to avoid unnecessarily irradiating this sensitive area, preserving valuable salivary function for patients' everyday comfort. This approach, part of a broader trend toward precision medicine, shows how a fundamental discovery can quickly translate into concrete clinical benefits for thousands of patients every year.

This kind of protocol adjustment obviously requires a rigorous validation phase, including clinical trials comparing outcomes with and without this extra precaution. Early results, while preliminary, appear encouraging regarding an actual reduction in cases of chronic xerostomia among patients treated under these newly adjusted protocols.

Several oncology research centers have already begun exploring changes to their radiotherapy protocols to account for this new anatomical structure, hoping to significantly reduce the incidence of chronic dry mouth among future patients treated for cancers in this part of the body.

A publication that sparked strong interest

The discovery of these tubarial salivary glands was published in a scientific journal specializing in radiotherapy and oncology, immediately sparking strong interest within the international medical community. This kind of publication, usually reserved for a specialist audience, quickly spread beyond its usual circle to reach mainstream media, fascinated by the idea that a new organ could still be discovered in the twenty-first century.

This media enthusiasm, although sometimes prone to oversimplification, had the merit of raising broad public awareness of the continued importance of fundamental anatomical research, too often wrongly seen as a scientific field that was settled long ago.

Necessary verification before widespread adoption

As with any recent scientific discovery, several independent research teams set out to verify and reproduce these initial observations, an essential step before the structure could be fully incorporated into the reference anatomy textbooks used around the world. This validation process, sometimes lengthy, ensures the solidity of the knowledge eventually taught to future generations of doctors.

This methodological caution, far from excessive, reflects rigorous scientific practice that consistently favors the reproducibility of results over any hasty generalization, a fundamental principle that distinguishes serious scientific work from unverified sensationalist claims.

A body still partly unexplored

This discovery is a powerful reminder that the human body, despite centuries of meticulous anatomical study, still holds blind spots capable of surprising even the most experienced researchers. Far from being a fixed, fully mapped scientific field, human anatomy continues to evolve alongside technological progress in medical imaging.

This common assumption, that all the major anatomical discoveries were already made long ago, is regularly contradicted by findings like this one. Each new generation of medical instruments brings its own share of revelations, confirming that knowledge of the human body remains a scientific work permanently in progress.

Other anatomical structures, such as the interstitium discovered a few years earlier, illustrate this same ongoing pattern of rediscovery, in which ever finer observation techniques gradually reveal unsuspected aspects of our own internal biology.

A lesson in humility for modern medicine

This scientific anecdote stands as a genuine lesson in humility for the entire medical community, a reminder that even the oldest and most well-established disciplines can still see major breakthroughs thanks to innovative technological tools. This humility, far from being an admission of weakness, is instead one of the essential engines of ongoing scientific progress.

Fascinating to consider that the next major anatomical discovery might already be hiding, quite literally, right under our own eyes, simply waiting for a sufficiently sensitive instrument to finally bring it to light.

Clinical studies already underway

Several research teams around the world have already launched clinical studies aimed at better understanding exactly how these tubarial salivary glands function and at concretely assessing the benefits of adapted radiotherapy designed to preserve them. This work, still preliminary, should help confirm or refine the initial hypotheses put forward at the time of the 2020 discovery. Encouraging to see how quickly the international scientific community seized on this discovery to translate it into concrete clinical applications.

These teams often work in close collaboration with hospital centers specializing in the treatment of head and neck cancers, an essential partnership for gathering enough clinical data to statistically validate the real benefits of this new therapeutic approach.

This research is part of a broader push toward continuous improvement in precision radiotherapy techniques, a constantly evolving medical field that directly benefits from progress in medical imaging and fine-grained anatomical knowledge of the human body.

A potential that extends beyond oncology alone

Beyond its immediate application in oncology, the discovery of these glands could also enrich our general understanding of the human salivary system, with possible implications for other conditions affecting the mouth, throat, and upper airways. This improved understanding could eventually benefit patients suffering from salivary disorders unrelated to cancer.

This discovery, born out of a completely different research context, once again illustrates the immeasurable value of fundamental research, whose practical benefits sometimes remain impossible to anticipate at the very moment the work is undertaken by the scientists involved. This observation makes the case for continued, sustained funding of basic science, even when its concrete applications are not immediately obvious to the general public. It is a pattern that keeps repeating throughout the history of medicine, and there is little reason to think the tubarial glands will be the last such surprise waiting to be uncovered somewhere inside the body we all still assume we know so well.

For now, the story of the tubarial glands remains a useful reminder to both patients and clinicians that medical knowledge is never truly finished. Textbooks get revised, imaging techniques keep getting sharper, and somewhere in a lab pursuing an entirely unrelated question, another overlooked structure may already be waiting to be noticed for the very first time. Until then, the tubarial glands stand as a small but striking example of how much curiosity, patience, and a bit of luck still matter in modern medical research.

By Maxime Marquette, columnist

Editorial stance

I am not a journalist but a columnist and analyst. My expertise lies in observing and analysing the geopolitical, economic and strategic dynamics that shape our world. My work is to take political strategies apart, to understand global economic movements, to put the decisions of international actors in context and to offer analytical perspectives on the changes that are redefining our societies.

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