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Celiac.com 10/03/2026 - A new case report describes an eight-year-old boy with years of chronic diarrhea, intermittent rectal bleeding, food-related problems, and intestinal inflammation whose condition improved substantially after a lengthy, highly individualized treatment program. The case is unusual because the child initially had findings that resembled Crohn's disease, yet his biopsies did not show some of the classic features needed to make that diagnosis with confidence.
Rather than receiving systemic immune-suppressing medication, the child underwent a broad treatment program addressing diet, food allergy, histamine exposure, digestion, intestinal microbes, infections, chewing problems, and feeding difficulties. Over approximately two years, his bleeding resolved, bowel movements normalized, inflammatory stool markers improved, and a follow-up colonoscopy showed near-complete healing of the intestinal lining.
The authors stress that this was only one patient and that the results cannot prove which treatment was responsible for the improvement.
Symptoms Began During Infancy
The child began having blood-streaked stools at about two months of age. He was initially thought to have an allergy to cow's milk protein and was managed with dietary changes.
Despite avoiding cow's milk protein, gastrointestinal problems continued for years. He experienced loose stools, intermittent visible blood, selective eating, and difficulty accepting different food textures.
By approximately age six, he was having two to three loose bowel movements each day, sometimes accompanied by urgency and blood. His parents also noticed recognizable pieces of food in his stool, including potatoes, corn, and fruit.
Another important observation was that he swallowed food quickly and chewed very little. He avoided harder textures and appeared to have difficulty processing food properly in his mouth before swallowing.
Testing Suggested Intestinal Inflammation but Not Classic Crohn's Disease
A colonoscopy performed when the child was six years and three months old revealed small ulcers and areas of abnormal intestinal tissue in several portions of the colon. Mild redness was also seen in the end of the small intestine.
The appearance raised concern for inflammatory bowel disease with features resembling Crohn's disease.
However, microscopic examination of tissue samples produced a less definitive picture. The biopsies showed mild chronic inflammation in the small intestine and colon, but they did not show granulomas, crypt abscesses, crypt inflammation, or major changes in intestinal architecture that could have strengthened a diagnosis of classic Crohn's disease.
The child also did not have perianal disease, mouth ulcers, unexplained fever, arthritis, skin problems, or other common complications that can accompany inflammatory bowel disease.
For these reasons, the authors described the condition conservatively as a Crohn-like chronic inflammatory colitis rather than definitively labeling it as classic Crohn's disease.
Celiac Disease Was Investigated and Considered Unlikely
Because chronic diarrhea, poor growth, food-related symptoms, and intestinal inflammation can overlap with celiac disease, celiac disease was considered as part of the diagnostic process.
However, the child's blood test for antibodies commonly associated with celiac disease was normal, and biopsies from the upper small intestine did not show the characteristic tissue damage associated with celiac disease.
The authors therefore considered celiac disease unlikely in this case.
Additional Testing Revealed Several Possible Contributors
Because the standard gastrointestinal evaluation did not completely explain the child's symptoms, additional testing was performed.
Stool testing showed substantially elevated markers associated with intestinal inflammation. Fecal calprotectin was 318 micrograms per gram before treatment, while fecal lactoferrin was markedly elevated.
The child also had elevated stool histamine and abnormalities in several other stool measurements.
Testing of the intestinal microbial community suggested reduced diversity and lower amounts of several types of bacteria commonly associated with intestinal health. Testing also detected Giardia and Clostridium-related findings, creating the possibility that infection or microbial overgrowth was contributing to the intestinal inflammation.
Testing of stool contents found undigested starch, plant material, and muscle fibers, which was consistent with the parents' observations that recognizable food particles were passing through the digestive tract.
Chewing and Tongue Movement Became Part of the Investigation
The child's feeding problems turned out to be another unusual part of the case.
Evaluation identified a restrictive band of tissue beneath the tongue that limited tongue movement. This could interfere with chewing, moving food around the mouth, and forming food properly before swallowing.
The researchers considered poor chewing a possible contributor to the delivery of larger and less thoroughly processed food particles into the digestive system.
The child received feeding therapy and oral-motor therapy designed to improve chewing, tongue movement, food texture tolerance, and formation of food before swallowing.
The restrictive tissue beneath the tongue was eventually surgically released, followed by continued therapy.
Treatment Addressed Many Factors at the Same Time
The child's family declined long-term systemic corticosteroids, immune-modifying medications, and biologic drugs. Instead, a closely monitored, step-by-step intestinal treatment program was used.
Dietary changes included continued avoidance of cow's milk protein and removal of foods considered poorly tolerated. The diet also reduced highly processed foods, added sugars, artificial colors, preservatives, and foods believed to contribute heavily to histamine exposure.
Gluten was also eliminated as one component of this broader dietary intervention, despite the absence of evidence that the child had celiac disease.
The child received digestive enzyme support because of the undigested food found in his stool. Supplemental diamine oxidase was used in an attempt to help reduce the burden of dietary histamine.
Probiotic therapy and other microbiome-directed approaches were introduced. The identified Giardia infection and suspected Clostridium-related overgrowth were also treated with antimicrobial medications.
Because so many treatments were introduced over time, the authors emphasized that it is impossible to determine which intervention, or combination of interventions, produced the improvement.
Symptoms and Intestinal Inflammation Improved Substantially
Improvement occurred gradually rather than immediately.
Over approximately 18 to 24 months, the child's bowel movements decreased to one or two formed or softly formed stools each day. Visible rectal bleeding disappeared, urgency decreased, appetite improved, and the child began accepting a wider range of foods.
His parents also reported better energy and mood.
Several objective laboratory measurements improved. Fecal calprotectin dropped from 318 to 54 micrograms per gram. Fecal lactoferrin also fell substantially, although it remained above the laboratory's normal range.
Elevated fecal histamine dropped into the normal range, and other stool measurements changed as well.
Most significantly, a repeat colonoscopy performed when the child was eight years and ten months old showed normal-appearing tissue throughout the colon and the end of the small intestine. No visible evidence of active Crohn's disease was reported.
The Study Has Major Limitations
This report describes only one child, so its results should not be interpreted as evidence that the same treatment program will work for other children with inflammatory bowel disease.
The treatment involved numerous interventions at different times. Diet, antimicrobial medications, treatment of Giardia, microbiome-directed therapy, digestive support, feeding therapy, improved chewing, histamine reduction, and other changes may all have contributed.
It is therefore impossible to determine whether removing gluten had any meaningful role in the child's recovery.
The authors also caution that some of the tests used to evaluate intestinal barrier function and histamine metabolism have limitations and should not be considered definitive diagnostic tools.
Most importantly, the report should not be interpreted as evidence that children with confirmed Crohn's disease should avoid standard treatment. Many children with Crohn's disease require established medical therapies, including nutritional therapy, immune-modifying medications, or biologic drugs.
Why This Case Could Be Meaningful for People With Celiac Disease
Although this child did not have celiac disease, the case is relevant to the celiac community because it demonstrates how complicated the diagnosis of chronic gastrointestinal disease can become when symptoms overlap.
Chronic diarrhea, poor growth, dietary reactions, intestinal inflammation, and food-related symptoms can occur in celiac disease but can also result from inflammatory bowel disease, food allergy, infection, feeding problems, microbial disturbances, or other gastrointestinal conditions.
The case reinforces why celiac disease should be properly tested rather than assumed based on symptoms alone. In this child, celiac testing and intestinal biopsies did not support the diagnosis even though gluten was eventually removed as part of a much broader dietary program.
It also illustrates the importance of continuing to investigate persistent symptoms when the initial diagnosis does not fully explain what is happening. For someone with diagnosed celiac disease who continues to experience diarrhea, bleeding, significant inflammation, or other gastrointestinal problems despite following a strict gluten-free diet, doctors may need to look beyond gluten exposure for additional causes.
Ultimately, this case is less about proving that one particular diet or treatment can heal intestinal disease and more about the value of careful diagnosis, individualized treatment, and objective follow-up. For people with celiac disease, that is an important reminder: not every intestinal symptom is caused by celiac disease, and persistent problems deserve a thorough evaluation rather than simply assuming that hidden gluten must be responsible.
Read more at: cureus.com
Rather than receiving systemic immune-suppressing medication, the child underwent a broad treatment program addressing diet, food allergy, histamine exposure, digestion, intestinal microbes, infections, chewing problems, and feeding difficulties. Over approximately two years, his bleeding resolved, bowel movements normalized, inflammatory stool markers improved, and a follow-up colonoscopy showed near-complete healing of the intestinal lining.
The authors stress that this was only one patient and that the results cannot prove which treatment was responsible for the improvement.
Symptoms Began During Infancy
The child began having blood-streaked stools at about two months of age. He was initially thought to have an allergy to cow's milk protein and was managed with dietary changes.
Despite avoiding cow's milk protein, gastrointestinal problems continued for years. He experienced loose stools, intermittent visible blood, selective eating, and difficulty accepting different food textures.
By approximately age six, he was having two to three loose bowel movements each day, sometimes accompanied by urgency and blood. His parents also noticed recognizable pieces of food in his stool, including potatoes, corn, and fruit.
Another important observation was that he swallowed food quickly and chewed very little. He avoided harder textures and appeared to have difficulty processing food properly in his mouth before swallowing.
Testing Suggested Intestinal Inflammation but Not Classic Crohn's Disease
A colonoscopy performed when the child was six years and three months old revealed small ulcers and areas of abnormal intestinal tissue in several portions of the colon. Mild redness was also seen in the end of the small intestine.
The appearance raised concern for inflammatory bowel disease with features resembling Crohn's disease.
However, microscopic examination of tissue samples produced a less definitive picture. The biopsies showed mild chronic inflammation in the small intestine and colon, but they did not show granulomas, crypt abscesses, crypt inflammation, or major changes in intestinal architecture that could have strengthened a diagnosis of classic Crohn's disease.
The child also did not have perianal disease, mouth ulcers, unexplained fever, arthritis, skin problems, or other common complications that can accompany inflammatory bowel disease.
For these reasons, the authors described the condition conservatively as a Crohn-like chronic inflammatory colitis rather than definitively labeling it as classic Crohn's disease.
Celiac Disease Was Investigated and Considered Unlikely
Because chronic diarrhea, poor growth, food-related symptoms, and intestinal inflammation can overlap with celiac disease, celiac disease was considered as part of the diagnostic process.
However, the child's blood test for antibodies commonly associated with celiac disease was normal, and biopsies from the upper small intestine did not show the characteristic tissue damage associated with celiac disease.
The authors therefore considered celiac disease unlikely in this case.
Additional Testing Revealed Several Possible Contributors
Because the standard gastrointestinal evaluation did not completely explain the child's symptoms, additional testing was performed.
Stool testing showed substantially elevated markers associated with intestinal inflammation. Fecal calprotectin was 318 micrograms per gram before treatment, while fecal lactoferrin was markedly elevated.
The child also had elevated stool histamine and abnormalities in several other stool measurements.
Testing of the intestinal microbial community suggested reduced diversity and lower amounts of several types of bacteria commonly associated with intestinal health. Testing also detected Giardia and Clostridium-related findings, creating the possibility that infection or microbial overgrowth was contributing to the intestinal inflammation.
Testing of stool contents found undigested starch, plant material, and muscle fibers, which was consistent with the parents' observations that recognizable food particles were passing through the digestive tract.
Chewing and Tongue Movement Became Part of the Investigation
The child's feeding problems turned out to be another unusual part of the case.
Evaluation identified a restrictive band of tissue beneath the tongue that limited tongue movement. This could interfere with chewing, moving food around the mouth, and forming food properly before swallowing.
The researchers considered poor chewing a possible contributor to the delivery of larger and less thoroughly processed food particles into the digestive system.
The child received feeding therapy and oral-motor therapy designed to improve chewing, tongue movement, food texture tolerance, and formation of food before swallowing.
The restrictive tissue beneath the tongue was eventually surgically released, followed by continued therapy.
Treatment Addressed Many Factors at the Same Time
The child's family declined long-term systemic corticosteroids, immune-modifying medications, and biologic drugs. Instead, a closely monitored, step-by-step intestinal treatment program was used.
Dietary changes included continued avoidance of cow's milk protein and removal of foods considered poorly tolerated. The diet also reduced highly processed foods, added sugars, artificial colors, preservatives, and foods believed to contribute heavily to histamine exposure.
Gluten was also eliminated as one component of this broader dietary intervention, despite the absence of evidence that the child had celiac disease.
The child received digestive enzyme support because of the undigested food found in his stool. Supplemental diamine oxidase was used in an attempt to help reduce the burden of dietary histamine.
Probiotic therapy and other microbiome-directed approaches were introduced. The identified Giardia infection and suspected Clostridium-related overgrowth were also treated with antimicrobial medications.
Because so many treatments were introduced over time, the authors emphasized that it is impossible to determine which intervention, or combination of interventions, produced the improvement.
Symptoms and Intestinal Inflammation Improved Substantially
Improvement occurred gradually rather than immediately.
Over approximately 18 to 24 months, the child's bowel movements decreased to one or two formed or softly formed stools each day. Visible rectal bleeding disappeared, urgency decreased, appetite improved, and the child began accepting a wider range of foods.
His parents also reported better energy and mood.
Several objective laboratory measurements improved. Fecal calprotectin dropped from 318 to 54 micrograms per gram. Fecal lactoferrin also fell substantially, although it remained above the laboratory's normal range.
Elevated fecal histamine dropped into the normal range, and other stool measurements changed as well.
Most significantly, a repeat colonoscopy performed when the child was eight years and ten months old showed normal-appearing tissue throughout the colon and the end of the small intestine. No visible evidence of active Crohn's disease was reported.
The Study Has Major Limitations
This report describes only one child, so its results should not be interpreted as evidence that the same treatment program will work for other children with inflammatory bowel disease.
The treatment involved numerous interventions at different times. Diet, antimicrobial medications, treatment of Giardia, microbiome-directed therapy, digestive support, feeding therapy, improved chewing, histamine reduction, and other changes may all have contributed.
It is therefore impossible to determine whether removing gluten had any meaningful role in the child's recovery.
The authors also caution that some of the tests used to evaluate intestinal barrier function and histamine metabolism have limitations and should not be considered definitive diagnostic tools.
Most importantly, the report should not be interpreted as evidence that children with confirmed Crohn's disease should avoid standard treatment. Many children with Crohn's disease require established medical therapies, including nutritional therapy, immune-modifying medications, or biologic drugs.
Why This Case Could Be Meaningful for People With Celiac Disease
Although this child did not have celiac disease, the case is relevant to the celiac community because it demonstrates how complicated the diagnosis of chronic gastrointestinal disease can become when symptoms overlap.
Chronic diarrhea, poor growth, dietary reactions, intestinal inflammation, and food-related symptoms can occur in celiac disease but can also result from inflammatory bowel disease, food allergy, infection, feeding problems, microbial disturbances, or other gastrointestinal conditions.
The case reinforces why celiac disease should be properly tested rather than assumed based on symptoms alone. In this child, celiac testing and intestinal biopsies did not support the diagnosis even though gluten was eventually removed as part of a much broader dietary program.
It also illustrates the importance of continuing to investigate persistent symptoms when the initial diagnosis does not fully explain what is happening. For someone with diagnosed celiac disease who continues to experience diarrhea, bleeding, significant inflammation, or other gastrointestinal problems despite following a strict gluten-free diet, doctors may need to look beyond gluten exposure for additional causes.
Ultimately, this case is less about proving that one particular diet or treatment can heal intestinal disease and more about the value of careful diagnosis, individualized treatment, and objective follow-up. For people with celiac disease, that is an important reminder: not every intestinal symptom is caused by celiac disease, and persistent problems deserve a thorough evaluation rather than simply assuming that hidden gluten must be responsible.
Read more at: cureus.com
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