Dieulafoy's lesion

Case report: Dieulafoy's lesion as a rare cause of massive gastrointestinal hemorrhage

INTRODUCTION AND IMPORTANCE

Dieulafoy's lesion is a rare but serious cause of gastrointestinal bleeding, typically affecting older adults. It involves an aberrant arteriole eroding the gastric mucosa, resulting in severe, recurrent bleeding that poses diagnostic and management challenges. We present a case report of massive gastrointestinal hemorrhage with hemodynamic instability associated with a Dieulafoy's lesion.

CASE PRESENTATION

A 55-year-old male with no significant medical history presented with gastrointestinal bleeding, showing signs of hematemesis and melena. He was hemodynamically unstable upon admission, with a hemoglobin level of 6 g/dL. After resuscitation and stabilization, an esophagogastroduodenoscopy revealed a 5 mm Dieulafoy lesion in the fundus, treated successfully with hemostatic clips. The patient had an uneventful recovery and was discharged on the fourth day, with normal follow-up at one year and no complications.

CLINICAL DISCUSSION

Dieulafoy's lesion, a rare cause of gastrointestinal bleeding, is found in 1-2 % of cases, primarily in males over 60 years old. First described by Dieulafoy, it results from an aberrant arteriole erosion, commonly in the upper stomach. Diagnosis is challenging during active bleeding and often requires multiple endoscopies. Mechanical hemostasis methods during endoscopy are effective, with recurrence rates of 8-10 %. Surgical intervention is reserved for severe, uncontrolled cases.

CONCLUSION

Dieulafoy's lesion, though rare, requires prompt diagnosis and effective endoscopic treatment to manage severe bleeding. Combining hemostatic techniques or surgical options may be necessary to address persistent cases and improve patient outcomes.

Fatal exulceratio simplex (dieulafoy lesion) - a case report and review

A 64-year-old man involved in a low-speed vehicle crash was found at autopsy to have altered blood extending from his stomach to his rectum. Within the stomach a small arterial vessel opened onto the mucosa of the posterior wall of the antrum adjacent to the pylorus with no adjacent mucosal ulceration or malignancy. Histologic sections showed the typical appearances of a Dieulafoy lesion with a tortuous small arteriole within the submucosa extending to the gastric lumen with an overlying cap of recently formed clot. There were no injuries attributable to the vehicle collision. Death was due to a bleeding Dieulafoy lesion of the stomach with a background of cardiomegaly. Dieulafoy lesion of the stomach is a rare disorder accounting for only 1-2% of cases of acute gastrointestinal hemorrhage. Although its pathogenesis is poorly understood it is capable of producing life-threatening bleeding, as in the present case. The small size of the lesion may make it difficult to identify at the time of autopsy.

The efficacy of sclerotherapy as the initial treatment in patients with bleeding from Dieulafoy's lesion of the upper gastrointestinal tract

BACKGROUND

Dieulafoy's lesion (DL) is a rare and important cause of acute nonvariceal upper gastrointestinal bleeding (ANVUGIB), however, there is a lack of clear guidelines focus on the endoscopic hemostasis treatment for DL. Sclerotherapy, as the ANVUGIB guideline recommended endoscopic hemostasis method, is widely used in clinical practice. The aim of this study is to investigate the efficacy of sclerotherapy as the initial treatment for Dieulafoy's lesion of the upper gastrointestinal tract (UDL).

METHODS

Patients with UDL who underwent the ANVUGIB standard endoscopic hemostasis between April 2007 and January 2023 were enrolled. The endoscopic therapy method was left to the discretion of the endoscopist.

RESULTS

In total, 219 patients were finally obtained, with 74 (33.8%) receiving sclerotherapy and 145 (66.2%) receiving other standard endoscopic therapy. The rebleeding within 30 days was significantly lower in the sclerotherapy group compared to the other standard group (5.8% vs. 16.8%, p = 0.047). There were no significant differences between the two groups in terms of successful hemostasis rate (93.2% vs. 94.5%, p = 0.713), median number of red blood cell transfusions (3.5 vs. 4.0 units, p = 0.257), median hospital stay (8.0 vs. 8.0 days, p = 0.103), transferred to ICU rate (8.1% vs. 6.2%, p = 0.598), the need for embolization or surgery rate (12.2% vs. 9.7%, p = 0.567) and 30-day mortality (0 vs. 2.1%, p = 0.553). In addition, we found no difference in efficacy between sclerotherapy alone and combination (3.1% vs. 8.1%, p = 0.714). Further analysis revealed that thermocoagulation for hemostasis was associated with a higher rate of rebleeding (28.6% vs. 3.1%, p = 0.042) and longer hospital stay (11.5 vs. 7.5 days, p = 0.005) compared to sclerotherapy alone.

CONCLUSION

Sclerotherapy represents an effective endoscopic therapy for both alone and combined use in patients with upper gastrointestinal Dieulafoy's lesion. Therefore, sclerotherapy could be considered as initial treatment in patients with bleeding of UDL.

Two cases of Dieulafoy's lesion in unusual sites: A rare case reports of gastrointestinal bleeding

INTRODUCTION

Dieulafoy's lesion (DL) is a vascular malformation that can lead to massive gastrointestinal bleeding. It's usually found in the stomach. However, DL's occurrence in atypical sites such as the small bowel and colon is exceptionally rare, posing significant management challenges.

CASE PRESENTATION

In this report, we present two cases of DL occurring in uncommon sites, each managed with distinct approaches. Case 1 is a 50-year-old man admitted to the emergency department due to massive GI bleeding and hemodynamic instability. The diagnosis of DL was established through computed tomography angiography and confirmed by histopathological examination after emergency surgery. Case 2 involves a 68-year-old woman presented with melena due to a colonic DL. This case was successfully managed through an endoscopic hemostasis approach.

DISCUSSION

Dieulafoy's lesions (DL) were first identified as a large submucosal artery lacking typical gastric ulcer characteristics in three of Paul Georges Dieulafoy's patients. This lesion is responsible for approximately 1-2 % of all cases of gastrointestinal bleeding. Endoscopy is the preferred method for diagnosing and managing DL lesions, especially in cases of active bleeding that is accessible. However, if endoscopic treatment or angiographic embolization fails, a surgical approach may be needed.

CONCLUSION

DL presents a diagnostic challenge due to its rarity and is not usually included in the differential diagnosis of gastrointestinal bleeding, particularly when occurring in unusual sites. Endoscopy is the preferred method to identify DL and a possible therapeutic approach in active bleeding. However, if endoscopy hemostasis fails, angiographic embolization or surgical intervention may be required.

Life-threatening Gastrointestinal Bleeding from a Dieulafoy's Lesion in the Duodenum: A Case Report

Dieulafoy's lesion is a rare cause of gastrointestinal bleeding, accounting for approximately 1-2% of all cases of gastrointestinal bleeding. Dieulafoy's lesion usually occurs in the lesser curvature of the stomach within six centimeters of the gastroesophageal junction. On the other hand, extragastric Dieulafoy's lesions are uncommon. Diagnosing an extragastric Dieulafoy's lesion by endoscopy can be challenging because of its small size and obscure location. The key elements for an accurate diagnosis include heightened awareness and a careful early endoscopic evaluation following a bleeding episode. Various endoscopic hemostatic techniques can be used for treatment. This paper presents a case of successful hemostasis using argon plasma coagulation for a life-threatening duodenal Dieulafoy's lesion.

Usage of Padlock Over-the-Scope-Clip in Difficult-to-Control Recurrent Gastrointestinal Bleeding Due to a Gastric Dieulafoy Lesion

Dieulafoy's lesions (DLs) are a rare cause of acute gastrointestinal bleeds (GIBs). Here we describe Over-the-Scope Clip Padlock System (OTSC-P) use to treat a gastric fundus DL with recurrent bleeding despite other interventions. The OTSC-P was created for full-thickness defect closure in the event of a perforation, but use has expanded to treatment of GIB. They consist of metal clips mounted on transparent caps, delivered via endoscope. Their size allows control of larger bleeding lesions, provides enhanced tissue stability and the firmer clip grasp reduces rebleeding or clip dislodgement.

Dieulafoy's lesion: Is there still a place for surgery? About 2 cases

INTRODUCTION

Dieulafoy's lesion, a rare but life-threatening condition accounting for a small percentage of acute gastrointestinal bleeding cases, has historically posed diagnostic and therapeutic challenges.

CASE PRESENTATION

In this article, we present two cases that required surgical intervention due to unsuccessful attempts with endoscopy. Case 1 involved a 40-year-old patient with a history of treated duodenal ulcers, while Case 2 featured a 74-year-old woman with no notable medical history. Both patients exhibited severe bleeding, necessitating urgent surgical procedures. The surgical approach involved wide gastrotomy, careful inspection, and successful suturing of the bleeding vessel.

DISCUSSION

Dieulafoy lesions, discovered by French surgeon Georges Dieulafoy in 1885, constitute 1-2 % of acute gastrointestinal bleeding cases. These anomalies involve enlarged submucosal arteries, predominantly in the stomach, but occurrences in other sites are documented. Endoscopic methods, surpassing surgical intervention, are preferred for treatment, boasting success rates over 90 %. Surgical measures become a last resort for uncontrolled bleeding, with laparoscopic surgery emerging as a minimally invasive alternative, facilitated by various intra-operative localization techniques. Laparoscopic wedge resection, in particular, exhibits lower re-bleeding rates than traditional oversewing methods, although feasibility depends on lesion location.

CONCLUSION

While endoscopic methods are preferred, surgery remains a vital option when bleeding persists or endoscopic intervention fails. This report highlights the significance of surgical management in selected cases of Dieulafoy's lesion.

Dieulafoy's Lesion in a Duodenal Diverticulum: A Case Report and Literature Review

This report presents a case of Dieulafoy's lesion (DL), a rare and serious gastrointestinal condition, which occurred unusually in a duodenal diverticulum and highlights the diagnostic and management complexities associated with it. A literature review of six similar cases revealed commonalities in presentation, diagnosis, and management, emphasizing the complexities in identifying and handling this rare manifestation of DL. The findings emphasize the need for clinical vigilance and further research into optimizing strategies for diagnosing and managing this rare condition.

Rare causes of acute non-variceal upper gastrointestinal bleeding: A comprehensive review

Non-variceal upper gastrointestinal bleeding (NVUGIB) is a common gastroenterological emergency associated with significant morbidity and mortality. Gastroenterologists and other involved clinicians are generally assisted by international guidelines in its management. However, NVUGIB due to peptic ulcer disease only is mainly addressed by current guidelines, with upper gastrointestinal endoscopy being recommended as the gold standard modality for both diagnosis and treatment. Conversely, the management of rare and extraordinary rare causes of NVUGIB is not covered by current guidelines. Given they are frequently life-threatening conditions, all the involved clinicians, that is emergency physicians, diagnostic and interventional radiologists, surgeons, in addition obviously to gastroenterologists, should be aware of and familiar with their management. Indeed, they typically require a prompt diagnosis and treatment, engaging a dedicated, patient-tailored, multidisciplinary team approach. The aim of our review was to extensively summarize the current evidence with regard to the management of rare and extraordinary rare causes of NVUGIB.

Dieulafoy's Lesion of the Duodenum: A Rare and Fatal Cause of Gastrointestinal Bleed

Dieulafoy's lesion (DL) is an unusual cause of recurrent gastrointestinal bleeding that can be fatal. It can occur in various parts of the gastrointestinal (GI) tract, most commonly located in the stomach, especially at the level of lesser curvature; however, it can occur in other parts, including the colon, esophagus, and duodenum. A duodenal Dieulafoy lesion is characterized by the presence of a larger-caliber artery that protrudes through the GI mucosa and can lead to massive hemorrhage. The exact cause of DL is yet to be determined. Clinical presentation includes painless upper GI bleeding, including melena, hematochezia, and hematemesis, or rarely iron deficiency anemia (IDA); however, most of the patients are asymptomatic. Some patients also have non-gastrointestinal comorbidities such as hypertension, diabetes, and chronic kidney disease (CKD). The diagnosis is established by esophagogastroduodenoscopy (EGD), which includes the presence of micro pulsatile streaming from a mucosal defect, the appearance of a fresh, densely adherent clot with a narrow point of attachment to a minute mucosal defect, and the visualization of a protruding vessel with or without bleeding. Initial EGD can be non-diagnostic due to the relatively small size of the lesion. Other diagnostic modalities include endoscopic ultrasound and mesenteric angiography. The treatment of duodenal DL includes thermal electrocoagulation, local epinephrine injection, sclerotherapy, banding, and hemoclipping. We present here a case of a 71-year-old female who had a history of severe IDA requiring multiple blood transfusions and intravenous iron in the past and was found to have duodenal DL.

Usefulness of indocyanine green fluorescence-guided small intestinal bleeding site identification in small bowel resection: a report of two cases and literature review

Small bowel bleeding that does not respond to conservative therapy requires surgical resection. However, identifying the bleeding sites intraoperatively is challenging. Indocyanine green (ICG) fluorescence imaging improves diagnosis of small bowel bleeding and surgical decision-making by visualizing blood flow. Herein, we reported two cases of small bowel bleeding that were successfully treated by using ICG to identify the bleeding sites and determine the extent of small bowel resection. The patients were a 46-year-old and a 75-year-old woman, both of whom presented with melena. Contrast-enhanced computed tomography and arteriography confirmed small bowel bleeding, and rebleeding occurred in both patients after transcatheter arterial embolization. Emergent surgeries were performed, and intraoperative selective angiography with ICG injections was conducted to identify obscure bleeding sites. ICG fluorescence identified all bleeding sites in both cases, and small bowel resections were successfully performed. The postoperative courses were uneventful, and both patients had a favorable postoperative course without recurrence of bleeding. ICG fluorescence imaging can safely identify the sites of intestinal bleeding and determine the appropriate extent of bowel resection.

Acquired Gastric Dieulafoy-Like Lesion due to Aberrant Blood Supply Diverted From the Left Phrenic Artery to an Enlarged Splenule

Dieulafoy lesion is an aberrant submucosal vessel that can erode into the overlying tissue leading to hemorrhage. It is a rare but important cause of gastrointestinal bleeding. We present a case of a patient who developed an acquired Dieulafoy lesion 39 years after splenectomy. Abdominal computed tomography showed an aberrant vessel from a branch of the left phrenic artery, coursing through the gastric fundus to supply a splenule. Angiography with embolization of the aberrant vessel resulted in no further bleeding.

Dieulafoy Lesion: Scope it Until You Find it

A Dieulafoy lesion is an important consideration every gastroenterologist and internal medicine physician has to make in cases of recurrent, unidentifiable, and hemodynamically compromising gastrointestinal (GI) bleeding. A Dieulafoy lesion is an aberrant vessel that does not reduce in caliber when it extends from the submucosa to the mucosa. Damage to this artery can result in severe, intermittent arterial bleeding from tiny, difficult-to-visualize vessel stumps. Furthermore, these catastrophic bleeding episodes frequently result in hemodynamic instability and the need for transfusion of multiple blood products. As the patients presenting with Dieulafoy lesions often have concomitant cardiac and renal disease, familiarity with this condition is relevant as these patients are at risk of transfusion-related injuries. This case is unique as the Dieulafoy lesion was not visualizable in a standard location despite multiple esophagogastroduodenoscopy (EGD) and CT angiography, illustrating the difficulty of accurately managing and diagnosing this condition.

Clinical outcomes of Dieulafoy's lesion compared with peptic ulcer in upper gastrointestinal bleeding

BACKGROUND AND AIM

Although Dieulafoy's lesion (DL) is an important cause of nonvariceal upper gastrointestinal (GI) bleeding, few studies have investigated the clinico-epidemiological outcomes due to its rarity. Here, we investigated clinical features of upper GI bleeding caused by peptic ulcer (PU) or DL and compared endoscopic treatment outcomes.

METHODS

Patients with upper GI bleeding resulting from PU or DL who visited emergency room between January 2013 and December 2017 were eligible. Clinical features and treatment outcomes were retrospectively investigated.

RESULTS

Overall, 728 patients with upper GI bleeding due to PU (n = 669) and DL (n = 59) were enrolled. The median age was 64 years (interquartile range [IQR], 56-75 years), and 74.3% were male. Endoscopic intervention was performed in 53.7% (n = 359) and 98.3% (n = 58) of the PU and DL groups, respectively (P < 0.0001). Patients were matched by sex, age, body mass index, comorbidity, and past medical history, and 190 PU and 52 DL were finally selected. The rebleeding rates within 7 (7.37% vs 17.31%, P = 0.037) and 30 (7.37% vs 26.92%, P < 0.001) days after initial endoscopy were significantly lower in the PU than in the DL group after propensity score matching. During the median follow-up period of 52 months (IQR, 34-70 months), there was no difference in overall survival rate (67.9% vs 82.7%, P = 0.518).

CONCLUSIONS

Although DL is a rare cause of upper GI bleeding, it requires endoscopic hemostasis more frequently and has a higher rate of rebleeding than PU even after therapeutic endoscopy. Endoscopists should pay attention and perform active endoscopic hemostasis for DL bleeding.

Gastrointestinal Emergencies and the Role of Endoscopy

Many gastrointestinal (GI) disorders present to the emergency room with acute clinical presentations, some even life threatening. Common emergencies encountered that require urgent endoscopic interventions include GI hemorrhage (variceal and nonvariceal), foreign body ingestion, obstructive jaundice, postprocedure-related complications such as postpolypectomy bleed or perforation, etc. A major advantage of emergency endoscopy is that it is cost effective and, on many occasions, can be life-saving. The present review will highlight a practical approach on various endoscopic modalities and their use in the GI emergencies.

Case report: The first description of a Dieulafoy's lesion in the gastric mucosa of a dog

An approximately 12-year-old, 31 kg, male neutered Labrador Retriever was presented to the referring hospital with an acute onset (less than 1 day) of hematemesis and melena. The dog was treated supportively for a presumptive gastric ulcer for 4 days with intravenous fluids, gastro protectants, such as pantoprazole, misoprostol, sucralfate, and barium, as well as an anti-emetic (maropitant) and analgesics (fentanyl, gabapentin, and tramadol). Throughout medical management, the dog continued to require blood transfusions approximately every 24 h. Given the poor medical response, the patient was subjected to an exploratory laparotomy. During surgery, a grossly raised, blister-like lesion on the mucosal surface of the stomach was appreciated on the lesser curvature of the stomach. A partial gastrectomy was performed, and the segment was submitted for histological evaluation. Histologically, there were multiple, tortuous, medium-caliber muscular arteries (>1.0 mm in diameter) in the submucosa. A single large-caliber artery (>0.75 mm in diameter) containing a partially occlusive thrombus extruded through the mucosa and projected on the ulcerated surface. The patient's signs were similar clinically and histopathologically to Dieulafoy's lesion in people. A Dieulafoy's lesion is a potentially life-threatening disorder that causes gastrointestinal (GI) hemorrhage. This lesion is characterized by a dilated, large-caliber, aberrant submucosal artery that erodes through the epithelium and ruptures, resulting in massive and potentially fatal hemorrhage. This lesion has never been documented previously in a dog.

Severe Gastrointestinal Bleed Caused by a Rectal Dieulafoy Lesion

Dieulafoy lesions are vessels that erode the overlying epithelium without the presence of an ulcer. When these lesions bleed, they can frequently be self-limited, but bleeding can be recurrent and prolonged. Although most commonly found in the lesser curvature of the proximal stomach, there are reports of these lesions in other gastrointestinal tract regions. This case identifies a Dieulafoy lesion found in the rectum, which was the source of this patient’s profuse rectal bleeding.

The mortality rate among patients with acute upper GI bleeding (with/without EGD) at Aleppo University Hospital: A retrospective study

Background

acute upper gastrointestinal bleeding (UGIB) is a common medical condition that results in substantial morbidity, mortality, and medical care cost. The mortality rate for patients with acute upper gastrointestinal (GI) bleeding is 5-10%, and it has not changed much since 1945, despite the development in medicines, endoscopy, intensive care units (ICU), and surgical management. We conduct this study to observe some of the factors that predict death in these patients.

Materials and methods

The Study was conducted at the Internal Medicine Department, Digestive Division, Aleppo University Hospital, between July 2018 and June 2020. The study included all patients with acute upper GI bleeding who were admitted to the digestive division during the study period, or who were admitted by other departments requesting an upper GI endoscopy.

Results

This study involved 234 patients, 137 males (58.55%), 97 females (41.45%).The patients' ages ranged between 17 and 81 years old, and the mean age value ± standard deviation was 57.15 ± 22.89 years old.The number of deaths reached 22, at a rate of 9.40%, 14 male deaths (10.22%), 8 female deaths (8.25%).

Conclusions

in this study we found a moderate inverse relationship between the hemoglobin value at admission and the incidence of death; the lower the hemoglobin value at admission, the higher the probability of patient's death. Also, there is a very significant direct relationship between the number of blood units transfused and the incidence of death, noting that all patients who died had received blood transfusions. Finally, we found a moderate inverse relationship between the arterial blood pressure value at admission and the incidence of death.

Ileal Dieulafoy lesion arose 15 years after partial small bowel resection for meconium obstruction of the neonate: a case report

Background

Anastomotic or perianastomotic ulcers present with symptoms such as chronic anaemia and occult bleeding as long-term complications of bowel resection performed in infancy.

Case presentation

Herein, we describe a 15-year-old girl with a history of surgery for meconium obstruction without mucoviscidosis in infancy who was hospitalized with chief complaints of presyncope and convulsions. Seven hours after admission, she developed melena and went into shock. An emergency laparotomy was performed, and a Dieulafoy lesion was detected near the site of ileal anastomosis from the surgery that had been performed during infancy.

Conclusions

Although overt massive lower gastrointestinal bleeding necessitating emergency care is rare in the long term after infant bowel resection, Dieulafoy lesions can cause serious bleeding, requiring rapid life-saving haemostatic procedures.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12887-021-02914-7.

Gastrointestinal Bleeding at CT Angiography and CT Enterography: Imaging Atlas and Glossary of Terms

Gastrointestinal (GI) bleeding is a common potentially life-threatening medical condition frequently requiring multidisciplinary collaboration to reach the proper diagnosis and guide management. GI bleeding can be overt (eg, visible hemorrhage such as hematemesis, hematochezia, or melena) or occult (eg, positive fecal occult blood test or iron deficiency anemia). Upper GI bleeding, which originates proximal to the ligament of Treitz, is more common than lower GI bleeding, which arises distal to the ligament of Treitz. Small bowel bleeding accounts for 5-10% of GI bleeding cases commonly manifesting as obscure GI bleeding, where the source remains unknown after complete GI tract endoscopic and imaging evaluation. CT can aid in identifying the location and cause of bleeding and is an important complementary tool to endoscopy, nuclear medicine, and angiography in evaluating patients with GI bleeding. For radiologists, interpreting CT scans in patients with GI bleeding can be challenging owing to the large number of images and the diverse potential causes of bleeding. The purpose of this pictorial review by the Society of Abdominal Radiology GI Bleeding Disease-Focused Panel is to provide a practical resource for radiologists interpreting GI bleeding CT studies that reviews the proper GI bleeding terminology, the most common causes of GI bleeding, key patient history and risk factors, the optimal CT imaging technique, and guidelines for case interpretation and illustrates many common causes of GI bleeding. A CT reporting template is included to help generate radiology reports that can add value to patient care. An invited commentary by Al Hawary is available online. Online supplemental material is available for this article. ^©RSNA, 2021.

Incidental massive lower gastrointestinal hemorrhage caused by a rectal Dieulafoy's lesion

A Dieulafoy's lesion is a rare cause of massive gastrointestinal (GI) bleeding. It represents an abnormally dilated submucosal artery that erodes the overlying epithelium in the absence of a primary ulcer. These lesions are usually located in the stomach, nevertheless, they have been found in all areas of the GI tract, including the oesophagus, duodenum and colon. Bleeding episodes are often self-limited, although bleeding can be recurrent and profuse. The case describes a 50-year-old woman who developed haemorrhagic shock secondary to a rectal Dieulafoy's lesion and discusses the diagnostic and therapeutic approaches.

Dieulafoy's lesion of the upper GI tract: a comprehensive nationwide database analysis

BACKGROUND AND AIMS

We sought to determine the incidence, risk factors, and treatment outcomes of Dieulafoy's lesion of the upper GI tract (UDL) hemorrhage among adult patients in the United States.

METHODS

UDL and non-Dieulafoy upper GI bleeding (UGIB) were identified from the Nationwide Inpatient Sample and Nationwide Readmission Database using International Classification of Diseases, Tenth Revision, Clinical Modification and Procedure Coding System codes. Multivariate logistic (binary) and linear (continuous) regressions were used to model dependent variables.

RESULTS

The incidence of UDL hemorrhage was 1.6 of 100,000 persons. Patients with UDL and UGIB who required endoscopic therapeutic intervention had similar in-hospital (adjusted odds ratio [aOR], .77; 95% confidence interval [CI], .42-1.43; P = .41) mortality rates. UDL was associated with more severe systemic illness, including higher rates of mechanical ventilation (aOR, 1.52; 95% CI, 1.07-2.15; P < .05), hypovolemic shock (aOR, 1.50; 95% CI, 1.08-2.08; P < .05), acute kidney injury (aOR, 1.25; 95% CI, 1.02-1.54; P < .05), and multiple endoscopies (aOR, 1.57; 95% CI, 1.28-1.93; P < .05) compared with other UGIB patients who required endoscopic therapeutic intervention. UDL was also associated with higher 30-day all-cause (aOR, 1.23; 95% CI, 1.12-1.35; P < .05) and recurrent bleeding-related (aOR, 1.73; 95% CI, 1.45-2.06; P < .05) readmissions. The rate of successful endoscopic treatment was 96.81%.

CONCLUSIONS

UDL hemorrhage is an uncommon but highly morbid condition. Current UDL treatment modalities are effective in reducing mortality. Further investigations are warranted to lower recurrent bleeding rates.

Dieulafoy's lesion in the cecum: A rare case report presentation

Introduction and importance

Dieulafoy's lesion is a rare entity, normally present in the stomach and more rarely in the colon, and it is responsible for 1% to 5% of acute gastrointestinal bleeding cases. Its true incidence may be underrated, since most cases are asymptomatic and difficult to diagnose despite endoscopic advances. We present a clinical case of acute gastrointestinal bleeding due to Dieulafoy's lesion in the cecum.

Case presentation

An 85-year-old woman presented with a clinical condition of haematochezia associated with anaemia and haemodynamic instability, needing blood transfusion. Colonoscopy demonstrated a Dieulafoy's lesion in the cecum with active bleeding, and haemostasis was performed successfully with localized adrenaline injection and haemostatic clip placement. Hospitalization occurred without further complications.

Discussion

The diagnosis of Dieulafoy's lesion is difficult because it is a rare condition and thus, usually not included in the differential diagnosis of gastrointestinal bleeding. Its endoscopic diagnostic and therapeutic approach is the standard method in the event of an acute gastrointestinal bleeding episode, with greater efficiency with the combined use of haemostatic techniques. Surgery is necessary in less than 5% of cases when bleeding is not effectively controlled by endoscopic or angiographic techniques.

Conclusion

It is essential to be aware of this lesion as a possible cause of gastrointestinal bleeding and differentiate it from other causes. Advances in endoscopy have increased the rate of diagnosis of these lesions and reduced their associated mortality.

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Dieulafoy's lesion is a rare entity and is mostly found in the stomach.

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This lesion is an uncommon cause of acute gastrointestinal bleeding.

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Its diagnosis is difficult due to its rarity.

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This case report presents a Dieulafoy's lesion in the colon, an even rarer location.

A Unique Case of Recurrent Upper Gastrointestinal Bleeding Caused by Two Metachronous Dieulafoy's Lesions: The Role of EUS Evaluation

Introduction

Dieulafoy's lesion (DL) is a rare but important cause of acute, severe, life-threatening, and recurrent upper gastrointestinal bleeding (UGIB). It is frequently difficult to diagnose DL with upper GI endoscopy (UGIE), and endoscopic ultrasonography (EUS) may be valuable. There are only 2 reported bleeding cases caused by two synchronous DL but no reported cases of two metachronous DL.

Case Report

A 28-year-old healthy male presented with acute severe UGIB. UGIE was inconclusive. Systematic EUS mapping identified a gastric DL. After several attempts of EUS-guided hemostasis, DL was marked using a through-the-scope clip and the patient underwent successful transcatheter arterial embolization (TAE). Three years later, a new severe UGIB episode was caused by a second gastric DL in a different location, which was identified and marked by EUS and further successfully treated through TAE. The patient maintained follow-up without evidence of further bleeding.

Discussion/Conclusion

The authors report a unique case of severe, recurrent UGIB caused by two metachronous gastric DL lesions. The importance of systematic EUS scanning for diagnosis, treatment, and follow-up of DL is emphasized, as well as the potential influence in the outcome of other techniques like angiographic embolization.

Esophageal Dieulafoy Lesion: A Rare and Potentially Fatal Entity

A 35-year-old gentleman presented acutely to the emergency department with large volume haematemesis and melena. Following adequate initial resuscitation, the patient underwent emergency upper gastrointestinal endoscopy which revealed a dilated tortuous submucosal vessel which was actively bleeding at the midpoint of the esophagus. This was consistent with a Dieulafoy lesion. However, its position in the midpoint of the esophagus is rare. Our patient recovered well following intervention.

Jejunal Dieulafoy's Lesion: A Systematic Review of Evaluation, Diagnosis, and Management

Jejunal Dieulafoy's lesion is an exceedingly rare but important cause of gastrointestinal bleeding. It frequently presents as a diagnostic and therapeutic conundrum due to the rare occurrence, intermittent bleeding symptoms often requiring prompt clinical action, variability in the detection and treatment methods, and the risk of rebleeding. We performed a systematic literature search of MEDLINE, Cochrane, Embase, and Scopus databases regarding jejunal Dieulafoy's lesio from inception till June 2020. A total of 136 cases were retrieved from 76 articles. The mean age was 55 ± 24 years, with 55% of cases reported in males. Patients commonly presented with melena (33%), obscure-overt gastrointestinal bleeding (29%), and hemodynamic compromise (20%). Hypertension (26%), prior gastrointestinal surgery (14%), and valvular heart disease (13%) were the major underlying disorders. Conventional endoscopy often failed but single- and double-balloon enteroscopy identified the lesion in 96% and 98% of patients, respectively. There was no consensus on the treatment. Endoscopic therapy was instituted in 64% of patients. Combination therapy (34%) with two or more endoscopic modalities, was the preferred approach. With regard to endoscopic monotherapy, hemoclipping (19%) and argon plasma coagulation (4%) were frequently employed procedures. Furthermore, direct surgical intervention in 32% and angiographic embolization was performed in 4% of patients. The rebleeding rate was 13.4%, with a mean follow-up duration of 17.6 ± 21.98 months. The overall mortality rate was 4.4%. Jejunal Dieulafoy's lesion is still difficult to diagnose and manage. Although the standard diagnostic and therapeutic modalities remain to be determined, device-assisted enteroscopy might yield promising outcomes.

Tödliches Dieulafoy-Ulkus

Nach einem Schlaganfall wurde ein 51 Jahre alter Mann in eine Rehaklinik verlegt. Gemäß klinischen Angaben soll sich dort eine Sepsis entwickelt haben. Aufgrund eines plötzlichen Bewusstseinsverlustes wurde der Patient umgehend in die nächstgelegene Klinik verbracht, wo er trotz umgehender Behandlung verstarb. Da die Ehefrau Vorwürfe gegen das Personal der Rehaklinik erhob, wurde eine rechtsmedizinische Obduktion in Auftrag gegeben.

Im Rahmen der Obduktion fielen große Mengen flüssigen Blutes im Magen sowie im oberen Gastrointestinaltrakt auf, sodass bereits autoptisch ein inneres Verbluten als Todesursache definiert wurde. Als Blutungsquelle kam ein makromorphologisch auffälliges, eröffnetes Gefäß im Magenfundus in Betracht. Die sichere Diagnose eines tödlichen Dieulafoy-Ulkus konnte jedoch erst nach histologischer Begutachtung erfolgen. Definierend für diesen Befund ist eine kaliberpersistente Arterie in der Submukosa ohne pathologische Veränderungen. Bei sicherer Diagnose kann dieser Befund einen plötzlichen Tod aus natürlicher Ursache darstellen. Da das Ulkus im gesamten gastrointestinalen Trakt vorkommen kann, ist bei relevantem Blutverlust und unklarer Blutungsquelle neben der genauen Inspektion eine histologische Aufarbeitung möglicher Blutungsquellen unerlässlich. Damit die Kriterien eines Dieulafoy-Ulkus beurteilt werden können, sollte neben einer HE(Hämatoxylin-Eosin)-Färbung mindestens eine EvG(Elastica-van-Gieson)-Färbung durchgeführt werden. Nur dann können alternative Entstehungsmöglichkeiten ausgeschlossen werden, welche aus forensischer Sicht möglicherweise hätten verhindert werden können.

Gastric vascular abnormalities: diagnosis and management

PURPOSE OF REVIEW

Gastric vascular abnormalities are a well known cause of gastrointestinal bleeding. Due to their recurrent bleeding tendency and potential to cause life-threatening blood loss, gastric vascular abnormalities can result in significant morbidity and cost.

RECENT FINDINGS

There have been novel advances in medical and endoscopic management of gastric vascular lesions. New data suggest that endoscopic band ligation and ablation may be comparable, or even superior, to argon plasma coagulation (APC) for management of gastric antral vascular ectasia (GAVE). A creative, highly sensitive and specific computer-assisted tool has been developed to facilitate reading video capsule endoscopies for the detection of angiodysplasias, paving the way for artificial intelligence incorporation in vascular lesions diagnostics. Over-the-scope clipping is a relatively new technology that shows promising results in controlling bleeding from Dieulafoy's lesions.

SUMMARY

In this article, we will broadly review the management of the most prevalent gastric vascular lesions, focusing on the most recent areas of research.

Risk Factors for Rebleeding after Emergency Endoscopic Treatment of Dieulafoy Lesion

Background and Objective: Dieulafoy lesion is a rare, but life-threatening, cause of gastrointestinal hemorrhage, and endoscopic therapy is the preferred first-line treatment. The present study aims to analyze the risk factors for rebleeding after endoscopic hemostasis of gastroduodenal Dieulafoy lesion. Methods. A retrospective review of patients with Dieulafoy lesion who developed acute gastrointestinal bleeding and were treated primarily with endoscopic therapy from September 2014 to April 2019 was conducted. Results. A total of 133 patients with Dieulafoy lesion were included in the present study. The mean age of these patients was 56.05 ± 16.58 years, and 115 patients were male. Among these 133 patients, 26 patients developed rebleeding within 30 days of endoscopic therapy. The 30-day rebleeding rate for pure injection therapy (epinephrine, cyanoacrylate, or lauromacrogol injection alone), nonpure injection therapy (argon plasma coagulation, band ligation, and hemoclip application alone), and combination therapy (combination of any >2 methods) was 45.2%, 12.8%, and 11%, respectively. In the univariable analysis, endoscopic treatment, prothrombin time, gender, Rockall score, and leukocyte count were the risk factors for rebleeding. In the multivariable analysis, pure injection endoscopic treatment, white blood cells (>10 × 10⁹/L), and prothrombin time >12 seconds were the independent risk factors for rebleeding. Conclusion. Patients who undergo pure injection endoscopic treatment and have a high leukocyte count (>10 × 10⁹/L) or elevated prothrombin time (>12 seconds) have an increased risk of rebleeding within 30 days after endoscopic treatment for gastroduodenal Dieulafoy lesion. Combined endoscopic treatment is the most effective therapy to prevent rebleeding in gastroduodenal Dieulafoy lesion.

A case of the lower gastrointestinal bleeding due to Dieulafoy’s ulcer in the cecum

Gastrointestinal Dieulafoy’s ulcer is a rare disease of unknown etiology. Dieulafoy’s ulcer often presents in the stomach and is thought to cause about 5% of all gastrointestinal bleeds in adults, but can be found in any part of the gastrointestinal tract. Dieulafoy’s ulcer corresponds to an arterial malformation in the submucosal space and can cause life-threatening hemorrhage. We report a case of the lower gastrointestinal bleeding from a cecal Dieulafoy’s ulcer that was successfully treated with endoscopic clips. An 82-year-old woman had been diagnosed with hypertension and cerebral infarction. She had been using aspirin to prevent recurrent infarction. She was admitted to our hospital with hematochezia. Urgent colonoscopy revealed a small, reddish vascular malformation in the cecum. The lesion was suggestive of Dieulafoy’s ulcer and was treated with endoscopic clips. The patient has since been discharged from our hospital without experiencing any further bleeding. Endoscopy is a useful method for diagnosing and treating Dieulafoy’s ulcer.

Dieulafoy's Lesion: Decade-Long Trends in Hospitalizations, Demographic Disparity, and Outcomes

Background

Dieulafoy's lesion is a relatively rare, but potentially life-threatening, condition where a tortuous arteriole, most commonly in the stomach, may bleed and lead to significant gastrointestinal hemorrhage. Limited epidemiological data exist on patient characteristics and the annual number of hospitalizations associated with such lesions. The aim of our study is to determine the inpatient burden of Dieulafoy’s lesion.

Methods

We analyzed the National Inpatient Sample (NIS) database for all subjects with a discharge diagnosis of Dieulafoy's lesion of the stomach, duodenum, and colon using International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes 537.84 and 569.86 as the primary or secondary diagnosis during the period from 2002 to 2011. Statistical significance of variation in the number of hospital discharges and demographics during the study period was achieved using the Cochrane-Armitage trend test.

Results

In 2002, there were 1,071 admissions with a discharge diagnosis of Dieulafoy's lesion as compared to 7,414 in 2011 (p < 0.0001). Dieulafoy's lesion was found to be most common in the age group of 65-79 years (p < 0.0001). Overall, it was found to be more common in males as compared to females (p = 0.0261). The white race was most commonly affected amongst all the races. The average cost of care per hospitalization increased from $14,992 in 2002 to $25,594 in 2011 (p < 0.0001).

Conclusion

There has been a steady rise in the number of inpatient admissions with Dieulafoy's lesions. Advances in diagnostic techniques likely play a key role in the higher detection rates along with the possible involvement of other unknown factors. Men, in the age group of 65 to 79 years, and Whites were found to have significantly higher admission rates than all other groups, with a significant increase in the cost of care.

A Jejunal Dieulafoy Lesion: Rare Case Necessitating Surgical Intervention

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Dieulafoy lesions are aberrant submucosal lesions that, in rare circumstances, can result in massive gastrointestinal bleeding.

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These lesions are particularly rare in the jejunum, thus usual diagnostic and therapeutic modalities such as endoscopy may prove difficult.

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Additional imaging such as angiography or radionuclide scanning can be beneficial in identifying the source of bleeding.

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If advanced endoscopic instruments are unavailable at one’s facility, the surgeon must consider operative intervention for life-saving measures.

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The operative findings and management discussed can guide clinicians unexposed to this disease process when surgical intervention is imminent.

Introduction

Dieulafoy lesions are enlarged atypical submucosal vessels that erode the superimposing epithelium in the absence of a primary ulcer. They occur predominantly in the gastric mucosa; however, cases have been seen throughout the gastrointestinal (GI) tract, and rarely, the jejunum. These lesions can cause massive GI hemorrhage leading to shock.

Case Presentation

We present a healthy 19-year-old male who arrived at our institution’s emergency department with multiple episodes of hematemesis and hematochezia that began earlier that morning. The patient was resuscitated and underwent a computerized tomographic (CT) angiography that did not identify any areas of active extravasation. The patient was then taken for an emergent upper and lower endoscopy that was inconclusive. He was subsequently sent for a tagged red blood cell scan, which demonstrated active bleeding in the proximal jejunum. Shortly thereafter, the patient began to decompensate requiring additional blood products and vasopressors. The decision was made for immediate operative intervention, which identified the bleeding Dieulafoy lesion (confirmed by histopathology) in the jejunum.

Discussion

Dieulafoy lesions are rare with an initial presentation of upper or lower GI bleeding, generally treated with endoscopic intervention. They are predominately found in the stomach or duodenum. When no clear source is identified by endoscopy, further diagnostic testing may be of value. Various imaging modalities exist; however, CT angiography or radionuclide scanning are particularly sensitive and can be beneficial in localizing the bleed when preparing for operative intervention.

Conclusion

With advances in endoscopic techniques, surgical intervention is rarely performed for a Dieulafoy lesion. If endoscopy is unsuccessful, additional imaging can be obtained to localize the source of bleeding. However, in emergent cases, when additional imaging cannot be obtained due to lack of time or resources, adequate resection of the lesion should be performed for complete resolution of the disease process. Based on the case presentation and pathologic findings, this case provides further insight into Dieulafoy lesions and the rare need for surgical management.

Massive Gastrointestinal Bleeding From a Jejunal Dieulafoy's Lesion

Dieulafoy's lesion is a histologically normal arteriole that has failed to progressively narrow as it navigates through the submucosa. It is a rare cause of massive gastrointestinal bleeding, occurring most often in the stomach, with only 1% of lesions occurring in the jejunum. We present the case of a 21-year-old man who presented with massive hematochezia ultimately attributed to a distal jejunal Dieulafoy's lesion, identified via an intraoperative surgically assisted deep enteroscopy. This case is unique not only regarding the unusual location of the lesion but also regarding the multidisciplinary approach necessitated for the management of this catastrophic hemorrhage that avoided surgical resection.

Diagnosis and Management of Non-Variceal Gastrointestinal Hemorrhage: A Review of Current Guidelines and Future Perspectives

Non-variceal gastrointestinal bleeding (GIB) is a significant cause of mortality and morbidity worldwide which is encountered in the ambulatory and hospital settings. Hemorrhage form the gastrointestinal (GI) tract is categorized as upper GIB, small bowel bleeding (also formerly referred to as obscure GIB) or lower GIB. Although the etiologies of GIB are variable, a strong, consistent risk factor is use of non-steroidal anti-inflammatory drugs. Advances in the endoscopic diagnosis and treatment of GIB have led to improved outcomes. We present an updated review of the current practices regarding the diagnosis and management of non-variceal GIB, and possible future directions.

Massive Gastrointestinal Bleeding from a Jejunal Dieulafoy Lesion: An Extraordinary Presentation

We present an atypical and rare case of a previously healthy 27-year-old male who presented with acute onset of abdominal pain, bloody diarrhea, and syncope. At the Emergency Department, vital signs were stable with no signs of shock. Physical examination revealed diffuse tenderness of the abdomen and cherry red blood was noted upon rectal examination. Blood tests showed marked leukocytosis without anemia. Sigmoidoscopy was performed which revealed hematochezia with no obvious site of bleeding. The patient was admitted to the hospital with a working diagnosis of dysentery and received supportive care. During the following days, blood tests revealed an ongoing decline of hemoglobin levels which necessitated a new workup of gastrointestinal bleeding. Investigation modalities including upper and lower endoscopies as well as angiography failed to demonstrate a bleeding site. Scintigraphy, which was performed next, demonstrated an increased radiotracer activity in the right abdomen consistent with small bowel bleeding. Following these results, the patient underwent urgent laparotomy and surgical resection was performed. The histopathological findings were consistent with a Dieulafoy lesion. This case illustrates the importance of the complementary role of various modalities in locating the bleeding site along the gastrointestinal tract.

A rare case of Goodpasture syndrome concomitant with bleeding jejunal Dieulafoy's lesion

An 81-year-old man was diagnosed with Goodpasture syndrome (GS) because he met the criteria of positive anti-GBM antibodies, rapid progressive glomerulonephritis and pulmonary hemorrhage. After starting plasmapheresis and steroid pulse therapy, he experienced tarry stool and contrast-enhanced CT revealed an aneurysmal finding in the jejunum. Paroral enteroscopy showed a jejunal Dieulafoy's lesion (DL) with gush-out hemorrhage. Hemostasis was successfully achieved by hemoclipping, and he then experienced no re-bleeding events. GS can present as a jejunal DL, and contrast-enhanced CT is useful for investigating the etiology and site of small intestinal bleeding, which can lead to smooth, effective endoscopic hemostasis.

The Baader-Meinhof Phenomenon of Dieulafoy's Lesion

Despite modern investigative innovations in the cutting edge field of gastroenterology, we are reminded of our contemporary limitations when we encounter the ever evasive Dieulafoy’s lesion (DL). Ever since it has been initially described in 1884, its rare but frustrating presence creates a calamitous situation. Even more so when it presents atypically, much like it did in our patient. This review of DL delves into the history, epidemiology, characteristics, the most current and innovative diagnostic measures available, as well as treatment and prevention of recurrence of these obscure gastrointestinal (GI) bleeding sources.

Rectal Dieulafoy's Lesion: A Rare Etiology of Lower Gastrointestinal Hemorrhage

A Dieulafoy's lesion is defined as a dilated submucosal vessel that erodes the overlying epithelium without evidence of a primary ulcer or erosion. It is a rare cause of gastrointestinal bleeding that is difficult to identify and subsequently manage. Most commonly, they occur in the upper gastrointestinal tract, namely the stomach. A Dieulafoy's lesion of the rectum, however, is an exceedingly rare presentation that can lead to life-threatening gastrointestinal bleeding. Our case consists of an 84-year-old man, who presented with lower gastrointestinal bleeding secondary to a Dieulafoy's lesion of the rectum.

Recurrent Gastrointestinal Bleeding from Dieulafoy's Lesions in a Patient with Type 1 von Willebrand Disease: A Rare Association

Von Willebrand disease (vWD) is the most prevalent hereditary bleeding disorder, affecting 0.6-1.3% of the population. While gastrointestinal bleeding from angiodysplasia is a well-known complication of vWD, the same is not true for Dieulafoy's lesions (DLs). We report the case of a 21-year-old black male with type 1 vWD and 2 previous hospital admissions for severe anemia with no visible blood loss. In both episodes, DLs were identified and treated endoscopically, one in the stomach and another in the duodenum. The patient presented to the emergency department in September 2016 with dizziness, fatigue, and again no visible blood loss. He was hemodynamically stable, and laboratory workup showed a hemoglobin level of 3.4 g/dL. After transfusion of packed red blood cells, intravenous iron, and von Willebrand factor/factor VIII concentrate infusions, the patient underwent upper endoscopy and colonoscopy, which were normal. Small-bowel capsule endoscopy showed dark blood and a fresh clot in the proximal jejunum. At this site, push enteroscopy identified a pulsatile vessel with an overlying minimal mucosal defect, consistent with a DL, type 2b of the Yano-Yamamoto classification, which was successfully treated with adrenaline and 2 hemoclips. The patient remains stable after 18 months of follow-up, with a hemoglobin level of 13.2 g/dL. This is a case of recurrent severe occult gastrointestinal bleeding from multiple DL in a young patient with vWD who is otherwise healthy. Three other cases of DL bleeding in the setting of vWD have been reported in the literature, suggesting a possible association between these 2 entities.

A Risk Assessment of Factors for the Presence of Angiodysplasias During Endoscopy and Factors Contributing to Symptomatic Bleeding and Rebleeds

BACKGROUND

Few studies have assessed factors associated with angiodysplasias during endoscopy or factors associated with symptomatic disease.

AIMS

To evaluate risk factors for the presence of and contribution to symptomatic disease in patients with angiodysplasias.

METHODS

We performed a systematic MEDLINE, EMBASE and Cochrane Library search according to the PRISMA guidelines for studies assessing risk factors involved in angiodysplasias detected during endoscopy and factors that lead to anemia or overt bleeding. Study quality was assessed with the Newcastle-Ottawa scale. A risk assessment was performed by selecting risk factors identified by two independent studies and/or by a large effect size.

RESULTS

Twenty-three studies involving 92,634 participants were included. The overall quality of the evidence was moderate. Risk factors for the diagnosis of angiodysplasias during endoscopy confirmed by at least two studies were increasing age (OR 1.09 per year, 95% CI 1.04-1.1), chronic kidney disease (OR 4.5, 95% CI 1.9-10.5) and cardiovascular disease (2.9, 95% CI 1.4-6.2). The risk of rebleeds was higher in the presence of multiple lesions (OR 4.2, 95% CI 1.1-16.2 and 3.8, 95% CI 1.3-11.3 and 8.6, 95% CI 1.4-52.6), liver cirrhosis (OR 4.0, 95% 1.1-15.0) and prothrombin time < 30% (OR 4.2, 95% 1.1-15.4) with a moderate effect size. Multiple comorbidities were associated with an increased in-hospital mortality (OR 2.29, 95% CI 1.2-4.3).

CONCLUSIONS

This systematic review identified age, chronic kidney disease and cardiovascular disease as the most important risk factors for the diagnosis of angiodysplasias during endoscopy. Multiple lesions increase the risk of recurrent bleeding.

Progress in diagnosis and treatment of colorectal Dieulafoy's disease

Dieulafoy's lesion, also named calibre persistent submucosal artery, is one of the rare and fatal causes of gastrointestinal bleeding, which can occur throughout the digestive tract. About 4% of Dieulafoy's lesions are located in the colon and rectum, especially in the rectum, cecum, and ascending colon. At present, the etiology and pathogenesis of colorectal Dieulafoy's disease are still not completely clear. The main clinical manifestation of colorectal Dieulafoy's disease is recurrent and massive hematochezia, and there may be no clinical manifestation during the intermittent period of the hemorrhage. The diagnosis and treatment of Dieulafoy's disease mainly rely on endoscopy, but due to the operating difficulties, clinical characteristics, and other factors, the treatment and diagnosis of this disease remain a challenge to clinicians. In this paper, we will discuss the pathology, etiology, pathogenesis, pathology, diagnosis, and treatment of colorectal Dieulafoy's lesion.