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Ampullary malignancies are extremely rare tumors that are usually diagnosed when they cause biliary obstruction. Rarely, any tumor or mass near or within the pancreas can cause acute pancreatitis and on even rarer occasions, these tumors can cause severe complications such as acute peripancreatic fluid collections, necrotizing pancreatitis, and infections. As a medical team, we must embrace these difficulties and these dreadful scenarios, as they are opportunities for growth for the medical team and opportunities to save even more patients. We present the case of a 59-year-old male who suddenly presented acute severe pancreatitis with necrosis and infection due to an ampullary mass. After recovery, he was referred to a tertiary center, where his cancer was successfully treated.

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Inflammatory myofibroblastic tumor is an extremely rare neoplastic lesion with a predilection for aggressive local and recurrent behavior. The tumor tends to occur in the lungs of children and young adults, and although it can develop in older patients and other organs, this is extremely rare. Symptoms are nonspecific and depend on the location and size of the tumor. The gastrointestinal tract is rarely this mass's primary site of origin, and the cecum is an even rarer location. We present the case of an otherwise healthy 55-year-old female who presented with an acute abdomen and a mass in her abdomen; after successful surgery, she fully recovered. Inflammatory myofibroblastic tumor causing acute abdomen was the final diagnosis.

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Gallstone ileus is an uncommon cause of mechanical bowel obstruction in patients with cholecystitis and gallstones who develop a fistula over time. In the post-cholecystectomy patient, the presence of gallstone ileus is extremely rare; these patients have different pathophysiological pathways, such as a spilled gallstone that subsequently erodes into the bowel, subtotal cholecystectomies, and diverticulae that can hold a gallstone for hidden several years. In these patients, the clinical presentations are unique because of their rarity and because the gallbladder had been previously removed. A high index of suspicion by the medical team is needed for diagnosis. We present the case of an 85-year-old male who had a history of cholecystectomy 35 years ago. He presented to the emergency department with intestinal obstruction. Since he had a hernia, it was thought to be the cause of the obstruction; however, during surgery, we were surprised to find a gallstone ileus. After surgery, he fully recovered.

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A gastrostomy is a common procedure for patients with swallowing problems or inability to maintain regular oral nutrition. These gastrostomy tubes need special attention, as complications can occur if the tubes are left unattended. In rare scenarios, these tubes can migrate and cause severe life-threatening difficulties such as bowel obstruction and pancreatitis. We present the case of a 76-year-old quadriplegic woman who had a gastrostomy tube. Suddenly, the tube was missing, and after urgent medical care, the gastrostomy tube was found within her bowel. After successful surgery, she recovered from this incident.

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Parasitic infections continue to be a burden for developing countries-the lack of hygiene measures and clean water results in dangerous scenarios that can lead to challenging problems. Most Ascaris lumbricoides infections are usually mild; nonetheless, in rare cases in endemic regions, they can migrate to the bile duct and cause severe complications requiring surgery. We present the case of a 43-year-old woman who had severe cholangitis due to A. lumbricoides. The worm migrated from the bowel and obstructed the bile duct; after surgery, the patient fully recovered.

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Ectopic thymoma is a rare tumor that arises from the abnormal migration of thymus tissue. They are extremely rare and have a broad spectrum of clinical symptoms. Therefore, preoperative diagnosis is complex and can be easily misdiagnosed. Complete resection is the treatment of choice to avoid recurrence, radiotherapy and enhanced survival. Regretfully, many patients arrive at a late stage, limiting our therapeutic options; therefore, pre-operative diagnosis is vital. We present the case of an otherwise healthy 32-year-old woman; after a chest X-ray was done for a routine medical evaluation, a mass was discovered in her mediastinum. After surgery, a B2 thymoma attached to the pericardium was discovered and successfully treated.

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Dysphagia is a common condition in clinical practice; however, an unusual type of dysphagia due to compression of the esophagus by an abnormal right subclavian artery may be discovered in a rare subset of patients. The prognosis and treatment will depend on the severity of the symptoms and the compromise of surrounding structures. We present the case of an 18-year-old female who presented with gradually progressive dysphagia. At first, it was treated as gastroesophageal reflux disease; nonetheless, the dysphagia became severe, and after a thorough evaluation, an aberrant right subclavian artery that compressed the esophagus was discovered along with a truncus bicaroticus. She was successfully treated with surgery without any complications. On follow-ups, she's doing well.

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BACKGROUND: Intravascular leiomyomatosis (IVL) is a histologically benign smooth muscle tumor arising from the uterus that can spread through the pelvic veins and, on rare occasions, extend as far as the heart via the inferior vena cava. Despite its benign characteristics, it can behave like a malignant tumor leading to significant morbidity and even mortality if left untreated. CASE PRESENTATION: The patient is a 42-year-old woman with a past medical history of uterine leiomyomas. She presented with heavy bleeding and frequent spotting; therefore, she went to her gynecologist. After further evaluation, a mass within the uterus that expanded into the pelvic veins, inferior vena cava, and right atrium was discovered. After the complete removal of the mass, the patient underwent full recovery. IVL with cardiac extension was the final diagnosis. CONCLUSION: Although IVL is rare, it must be considered in women who underwent previous hysterectomies or myomectomies and present with symptoms of right heart failure. The ideal therapy will need the aid of a multidisciplinary team and will depend on the patient's symptoms, previous operative history, the tumor's extension, and resectability.

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BACKGROUND: Esophageal duplication cysts are rare congenital tumors usually diagnosed and treated during childhood. Most of them are located in the mediastinum and appear as a mass besides the esophagus. Unfortunately, symptoms are non-specific and depend on the size and location of the mass; therefore, they can easily be missed. If symptoms appear, surgical resection is necessary to prevent troublesome complications. CASE PRESENTATION: We present the case of a 60-year-old woman who presented with severe progressive dysphagia and epigastric pain. After further evaluation, a paraesophageal cystic mass was found, and surgery was required. Non-communicating esophageal duplication cyst was the final diagnosis. CONCLUSION: Esophageal duplication cysts are a rare pathology in adults; their symptoms will vary depending on their size and location. Preoperative diagnosis is difficult as symptoms are non-specific and can be missed. If severe dysphagia, pain, or any other complication appears, surgery should not be delayed.

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During any surgical procedure, complications may arise, some of which are fortuitous, whereas others, unfortunately, occur because of errors of the surgical team. Fortunately, most are minor and do not affect the patient's recovery, but others can cause severe morbidity and even mortality. A retained cotton or gauze surgical sponge inadvertently left in the body during an operation is known as a gossypiboma. This dreadful oversight is a marked complication that can cause serious postoperative complications, a severe economic burden on the healthcare system, and many medicolegal implications. We report the case of a 30-year-old male, who suffered a spinal fracture which was repaired through an anterior fixation approach 12 years ago in a local state hospital without complications. Suddenly, he presented with chest pain and cough, and sought medical attention. An 8 × 5 × 8 cm low-density heterogeneous mass was discovered on his chest; after successful surgery, a gossypiboma formed by several gauzes without radiopaque markers was discovered.

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Jejunal diverticula are rare, and small bowel diverticular disease resulting in volvulus can lead to severe complications; as symptoms are non-specific, many patients are misdiagnosed and treated wrongly for other conditions. When a small bowel volvulus is detected, urgent surgical treatment is needed to avoid troublesome difficulties. We present the case of a 36-year-old woman who presented to the emergency room with an acute abdomen due to small bowel obstruction. After further testing, a volvulus was detected and promptly treated. Jejunal diverticula that caused a small bowel volvulus was the final diagnosis.

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BACKGROUND: Perforated gastric ulcers are life-threatening surgical emergencies that need early diagnosis and treatment to overcome severe complications. With the rise of obesity in recent years, intragastric balloons have arisen as a "safe" strategy; however, in medicine, no treatment is risk-free. Nausea, pain, vomiting, and more severe complications like perforation, ulceration, and death can occur. CASE PRESENTATION: We present the case of a 28-year-old man with obesity; treatment with an intragastric balloon was initiated with good results at the beginning of his treatment. However, he neglected his treatment over time and made unhealthy choices, leading to a severe complication. However, thanks to prompt surgical treatment, he made a full recovery. COMPLICATIONS: Gastric perforation following an intragastric balloon is a severe and potentially life-threatening complication that an experienced multidisciplinary team must treat promptly and, more importantly, prevent.

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Forgetting gauze or "a surgical drape" inside a patient after surgery is a rare medical error. It can lead to severe complications, high hospital costs and medico-legal implications. As a result, this complication is often not reported, mainly to avoid retaliation and because it can initiate extensive critical press coverage. This technical oversight may be just the tip of an iceberg concerning the reality of surgical errors; therefore, the entire surgical team must focus on prevention, continuing medical education and strict adherence to protocols and counting guidelines to minimize their incidence. We present the case of a 76-year-old patient with an acute abdomen; after an initial evaluation, a gossypiboma was discovered, which was forgotten 24 years after prostatectomy.

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Foreign body ingestion is a common condition in daily practice; fortunately, most cases do not require endoscopic or surgical treatment, as most foreign bodies pass through the intestine without injuring it. Although mainly seen in children, adults can also be affected, especially in accidental situations and suicide attempts. Therefore, the clinical history and the environment in which the event occurred are essential for a rapid diagnosis. This can be even more challenging as most adult patients are rarely aware of ingestion. Therefore, a high index of suspicion is necessary. Therapy will depend on the foreign body's size, shape and material; treatment should not be delayed if complications are detected. We present a case of a 34-year-old man who accidentally swallowed the mold of his teeth while undergoing a dental procedure. Subsequently, he presented with an intestinal obstruction that required surgery. Fortunately, he made a full recovery.

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Anatomical variations of the celiac and mesenteric artery have been described over the past two centuries; many of these variations will have no clinical repercussions and will only be found incidentally or during imaging studies. However, these variations can lead to severe complications if undetected during surgery, transplantation or when they are affected by ischemia. Therefore, prompt treatment is needed to overcome these dangerous scenarios. We present the case of a 71-year-old patient who had a celiacomesenteric trunk and developed transient intestinal ischemia; however, he suffered severe acidosis and hyperlactatemia that ultimately led to organ failure and death.

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Background: Gallbladder agenesis is an extremely rare congenital condition in which most patients will remain asymptomatic; nonetheless, a small subset of patients will mimic biliary, urinary, or gastrointestinal disorders. As a result, if these patients are unaware of their condition, an ultrasound may be needed when they present with right upper abdominal pain, which can be misleading or inconclusive, putting the surgeon and the medical team in a diagnostic and intraoperative dilemma. Case presentation: We present the case of a 36-year-old woman with a history of ventricular septal defect and cleft palate. She presented with abdominal pain to the emergency department. After an ultrasound, cholecystitis was misdiagnosed, and, unfortunately, the medical team did not realize this mistake. As a result, surgery was decided. After additional tests, gallbladder agenesis was diagnosed, and the patient fully recovered. Clinical discussion: Congenital absence of the gallbladder can often pose a dilemma to surgeons when it is diagnosed during surgery. Preoperative diagnosis is highly challenging as it can mimic other pathologies; therefore, the medical team needs to keep this pathology on their list of differential diagnoses to avoid dangerous procedures. Conclusions: Congenital absence of the gallbladder can often pose a dilemma to surgeons when it is diagnosed during laparoscopic cholecystectomy. Since preoperative diagnosis is challenging, communication between radiologists and surgeons is critical in order to provide proper care for any patient.

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INTRODUCTION AND IMPORTANCE: Obesity is a worldwide pandemic and is closely associated with an increased risk of comorbidities and overall mortality. Surgery has emerged as an essential strategy to ameliorate obesity-attributable comorbidities and as a powerful weight-loss tool. Due to the increasing number of obese patients predicted to elect surgery, individuals with rare anomalies such as situs inversus can be expected. CASE PRESENTATION: We present the case of a 49-year-old woman with situs inversus with levocardia. She had a high BMI and was admitted for bariatric surgery. After several adjustments to our technique, the procedure was completed without complications. CLINICAL DISCUSSION: Laparoscopic bariatric surgeries are highly demanding; variations from the normal anatomy could challenge the medical team. CONCLUSION: Preoperative diagnosis and highly trained surgeons is of paramount importance to adequately treat every patient.

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Ingestion of foreign bodies is often found in clinical practice; however, intestinal perforation due to ingestion of foreign bodies is rare. Sharp and metallic objects are usually the ones that cause most complications. Preoperative diagnosis is difficult since the clinical presentation is vague and nonspecific presentation can simulate many abdominal pathologies. Patients are rarely aware of foreign body ingestion, and a high index of suspicion is required to make a timely diagnosis. In addition, treatment demands prompt surgery to avoid dangerous complications. We present the case of a 19-year-old tailor; he inadvertently swallowed a needle and presented to the emergency department with a colonic perforation. Surgery was required, and he recovered completely.

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INTRODUCTION AND IMPORTANCE: Castleman's disease was first reported by Benjamin Castleman et al., in 1954 and described it as a sporadic lymphoproliferative disorder. The pathophysiology to this day is still unknown, although IL-6 is suspected to play an important role. Preoperative diagnosis is challenging due to its non-specific symptoms, and that imaging cannot clearly distinguish the disease from other processes. High clinical awareness is necessary to reach a diagnosis. If the disease is localized, complete recovery can be achieved through surgery. CASE PRESENTATION: Patient is a 68-year-old woman with a three-month history of recurrent episodes of fever, myalgias, and night sweats. She started to experience lower abdominal pain and presented to the emergency room. A contrast-enhanced abdominal computed tomography revealed a 5 cm well-circumscribed focal heterogeneously enhancing hyperplastic mass between the portal vein and the inferior vena cava. After successful laparoscopic surgery, the mass was resected, and the patient fully recovered. Unicentric Castleman's disease was the final diagnosis. DISCUSSION AND CONCLUSION: Castleman's disease is an uncommon pathology with a challenging diagnosis. When approaching an abdominal mass, unicentric Castleman's disease should always be a differential diagnosis, as treatment can be curative with surgical resection. With the advent of laparoscopic and robotic surgery, these techniques can improve patients' outcomes in these rare pathologies, especially when they appear in complex regions.