Multimodality characterization of a noncommunicating congenital duodenal duplication cyst causing pyloric outflow obstruction in a young dog.

A 10-month-old German Shepherd Dog presented for evaluation of intermittent vomiting. Abdominal radiographs revealed a marked right cranial mass effect. Initial differentials included abscess/cyst or less likely neoplasia from undetermined origin. On abdominal ultrasound the mass appeared cystic and thin walled. Computed tomography revealed a large cystic lesion originating from the pyloroduodenal junction causing pyloric outflow obstruction. A noncommunicating duodenal duplication cyst was found on exploratory laparotomy and further confirmed with histopathology and immunohistochemistry. Enteric duplication cyst should be considered as a differential in young dogs with gastrointestinal signs and a cystic abdominal mass detected with different imaging modalities.

Prenatal Diagnosis and Intervention in a Fetal Enterogenous Cyst.

The ultrasound diagnosis of a fetal intra-abdominal cyst is typically established during the second or third trimester in the majority of cases. They primarily arise from the gastrointestinal or genitourinary system during the development of intra-abdominal structure and if isolated may resolve spontaneously. Enteric or enterogenous or enteric duplication cysts, which are congenital developments from the intestine, are most common. This case of an enterogenous cyst is presented because of its extreme rarity, its large size, and the need for prenatal intervention. Early identification and definitive treatment are necessary for proper management of this condition.

Coexistent neck enteric cyst and intraspinal neurenteric cyst: Embryopathogenetic implications.

INTRODUCTION: Enteric cysts are very rare conditions, occurring mainly in the posterior mediastinum and posterior neck. Their pathomorphology corresponds with that of intraspinal neurenteric cysts. Both formations are derivatives of the posterior foregut. However, their embryopathogenesis has not been elucidated satisfactorily as yet. For those associated with vertebral anomalies, the split notochord theory has been widely accepted. However, this is be hardly conceivable for cases free of these anomalies. CASE REPORT: Here, a patient with concurrent separated enteric and neurenteric cysts and cervical spine dysmorphism is presented. DISCUSSION: The review of the relevant literature revealed sporadic analogical cases in which a transvertebral communication between the two cysts was present or absent. The latter was associated with a minimal abnormality of the vertebral body. CONCLUSION: The authors suggest that normal vertebrae may be formed in patients with enteric cysts, which would make the notochord-split theory plausible also for those free of spinal malformations.

Intracranial neurenteric cyst: A case report and differential diagnosis of intracranial cystic lesions.

Neurenteric cysts are uncommon, benign lesions that are rarely located intracranially. These cysts are likely due to aberrant embryologic development of the notochord. Clinically, neurenteric cysts may present with symptoms of mass effect, or they can be asymptomatic and incidentally discovered. Imaging features of neurenteric cysts have significant overlap with other intracranial cystic lesions, which can make diagnosis difficult. We present a case of a 35-year-old female with a histopathologically confirmed neurenteric cyst in the premedullary and left cerebellomedullary cistern, with associated symptoms of headache, dizziness, tinnitus, and dysphagia. The patient underwent surgical resection, with improvement in symptoms. We present a review of literature, and a discussion of typical features of multiple intracranial cystic lesions. We hope to promote accurate preoperative diagnosis, to allow for appropriate surgical technique to reduce the risk of recurrence.

Mixed adenoneuroendocrine carcinoma of the tongue arising within a congenital enteric cyst.

BACKGROUND: Primary intestinal-type adenocarcinoma of the tongue is rare. This represents the first reported case of a primary mixed adenoneuroendocrine carcinoma (MANEC) of the tongue arising within a congenital enteric cyst. METHODS: A 52-year-old man presented with a midline tongue mass that was connected to the mucosal surface with an epithelial-lined sinus tract. Morphological examination and immunohistochemical profiling of the neoplasm were performed. RESULTS: Histopathological evaluation showed a primary MANEC arising within a preexisting congenital enteric cyst, comprising both adenocarcinoma and neuroendocrine components. The adenocarcinoma had a colonic-type morphology and coexpressed CK7, CK20, and CDX2. Imaging and colonoscopy excluded a distant primary colorectal neoplasm. CONCLUSION: The association of primary MANEC of the tongue with a gastrointestinal heterotopic cyst supports an origin from entrapped endodermal elements as opposed to salivary duct origin. This case raises the awareness of a rare yet prognostically important complication of a gastrointestinal heterotopic cyst.

A case of abdominal enteric cyst in China.

To investigate a case of abdominal enteric cyst in China. The patient was admitted to the china-Japan Friendship Hospital of Jilin University, which was due to intermittent pain in the left side for the last 4 months. In this surgery, CT was used to diagnose the basic condition of the patient. Surgery was used for Treatment of patients with diseases. As soon as patients have been successfully operated by laparoscopic surgery.

Postoperative Spontaneous Intussusception Caused by a Jejunal Peritoneal Cyst: A Case Report and Literature Review.

Postoperative intussusception in adults is an extremely rare clinical entity. Postoperative intussusception caused by a jejunal peritoneal cyst is even rarer. Etiopathogenesis of this clinical condition is not well understood. In the given case it seems to be a complication of prolonged contact of a draining tube with bowel. We present a case of postoperative spontaneous intussusception in a 72-year-old female patient after gastric surgery. The cause of intussusception appeared to be a jejunal peritoneal cyst which is extremely rare. Desinvagination and excision of cyst via laparotomy was performed and the postoperative course was uneventful. Abdominal draining tubes should be placed in a position which will avoid possible further prolonged contact with bowel.

Accessory pancreatic lobe in association with a gastric duplication cyst.

Gastric duplication cysts are an extremely rare anomaly with few reported cases in association with accessory pancreatic tissue. Diagnosis can be challenging given a presentation of recurrent pancreatitis and resemblance to pancreatic pseudocysts. We report the case of a 6-year old boy with multiple episodes of pancreatitis who was discovered to have an accessory pancreatic lobe connected to a gastric duplication cyst, successfully treated with surgical excision.

Lateral Meningomyelocele in a Neonate: A Case Report.

Lateral presentation of meningocele and meningomyelocele is extremely rare. Most of the lateral meningocele described are associated with other syndromes. Isolated lateral meningomyelocele cases are rarer still. We herein report a neonate with isolated lateral gluteal meningomyelocele.

Enteric duplication cyst as a leading point for ileoileal intussusception in an adult: A rare cause of complete small intestinal obstruction.

Duplication of alimentary tract (DAT) presenting as an ileoileal intussusception is a very rare clinical entity. Herein, a case of an ileoileal intussusception due to DAT is presented. A 32-year-old woman was hospitalized due to diffuse, intermittent abdominal pain, vomiting and constipation for 3 d associated with abdominal distention. Plain abdominal X-ray revealed dilated small bowel. Abdominal computed tomography showed grossly dilated small bowel with "sausage" and "doughnut" signs of small bowel intussusception. She underwent laparotomy, with findings of ileoileal intussusception due to a cystic lesion adjacent to the mesenteric side. Resection of the cystic lesion along with the affected segment of intestine, with an end to end anastomosis was performed. The histopathology was consistent with enteric duplication cyst. This case highlights the DAT, although, an uncommon cause of adult ileoileal intussusception should be considered in the differential diagnosis of intussusception in adults, particularly when the leading point is a cystic lesion.