Esophageal pneumatosis: a pictorial review.

Gastrointestinal pneumatosis has been reported from the esophagus to the rectum, with most cases involving the small bowel, stomach, or colon. Esophageal pneumatosis is rare, with only a small number of case reports described in the literature, although it is likely underreported. Esophageal pneumatosis may be idiopathic or secondary to a specific underlying cause. Mechanisms of esophageal pneumatosis include increased intraluminal pressure, mucosal disruption, and dissection of air from an extraesophageal source. Depending on the underlying cause, esophageal pneumatosis is usually benign although it may be indicative of a life threatening condition. Esophageal pneumatosis is typically detected with CT, although it may be evident during direct visualization with endoscopy. In this article, we review the etiologies and imaging appearances of esophageal pneumatosis.

"Cystamatic" Review: Is Surgery Mandatory for Pneumatosis Cystoides Intestinalis?

INTRODUCTION: Pneumatosis cystoides intestinalis (PCI) is a rare condition characterized by the presence of intramural gas cysts within the small and large intestines. We describe a case of a 70-year-old man admitted to the Emergency Surgery Department for PCI who was treated conservatively. AREAS COVERED: We reviewed 60 cases of PCI described in the international literature over the last 5 years. From our analysis, it appears that the etiology of the gas production within the submucosa or the subserosa of the gastrointestinal tract is still unknown. The rupture of the cysts can lead to pneumoperitoneum that can simulate a surgical emergency. EXPERT COMMENTARY: For patients with PCI, a conservative approach is the treatment of choice, with surgery mandatory only for complicated disease.

Benign pneumatosis intestinalis with massive portomesenteric venous gas in a very old man. A case report.

INTRODUCTION: Pneumatosis intestinalis (PI) is described as the presence of air within bowel wall. PI aetiology is various: it can be associated with non-urgent or life-threatening conditions. Clinical management is based on physical examination, blood tests and radiology, in particular abdominal CT. The cause of PI suggests the correct therapy. When PI is linked to gas in portal and mesenteric venae (PMVG), bowel ischemia or infarction is possible, and surgery needed. CASE REPORT: A 91 years-old man was admitted to Emergency Department reporting abdominal pain and vomit. Acute abdominal symptoms, radiological finding of small bowel PI with massive PMVG, severe neutrophilia, and high serum lactate forced us to perform exploratory laparotomy, from which it was observed a diffuse band-like pneumatosis of all the small bowel and mesentery without ischemic or peritonitis signs. The patient was imposed to fast and treated with oxygen, intravenous fluid and antibiotic therapy, without performing further surgery, and was discharged to a rehabilitation facility after symptomatology resolution. DISCUSSION: Scientific literature underlines the importance of PMVG to consider as critic a patient with PI, but it is always essential to assess also physical examination, vital parameters, and blood exams. In our case, several signs were suggestive for bowel infarction: its absence and the swift recovery of the patient were unexpected. CONCLUSION: Although non-surgical treatment is recommended for primary PI of unknown aetiology, in case physical examination and radiological signs aren't decisive surgery is necessary to rule out bowel infarction. This case stresses the difficulty of PI management.

Rapid reversal of colonic pneumatosis with restoration of mesenteric arterial supply.

Pneumatosis cystoides intestinalis (PCI) is characterized by gas-filled cystic lesions within the wall of the large intestine and presents along a spectrum of clinical severity ranging from benign to life threatening. Etiopathogenesis is multifactorial and postulated to result from either mechanical or bacterial causes. In this report, we present a patient with chronic abdominal pain evaluated with colonoscopy revealing segmental PCI isolated to the distal colon. Further investigation revealed an abdominal aortic aneurysm (AAA) compromising the inferior mesenteric artery takeoff. Endovascular repair of the AAA resulted in clinical resolution of abdominal pain and endoscopic resolution of PCI. To our knowledge, this is the first report to document endoscopic resolution of PCI with restoration of mesenteric arterial supply, highlighting vascular insufficiency as a predisposing and reversible pathogenic mechanism.

Stenotic Ischemic Enteritis with Concomitant Hepatic Portal Venous Gas and Pneumatosis Cystoides Intestinalis.

A 69-year-old man was admitted to a hospital with complaints of abdominal pain. Computed tomography showed hepatic portal venous gas and pneumatosis cystoides intestinalis. Conservative treatment was effective; however, after discharge, he developed complaints of vomiting. Fluoroscopic enteroclysis revealed a stricture in the jejunum necessitating admission to our hospital. Transoral balloon-assisted enteroscopy showed a circumferential ulcer with a stricture. The stricture was surgically resected, and a histopathological examination was consistent with ischemic enteritis. Stenotic ischemic enteritis should be considered among the differential diagnoses in a patient presenting with hepatic portal venous gas and pneumatosis cystoides intestinalis showing small intestinal obstruction.

Pneumatosis From Esophagus to Rectum: A Comprehensive Review Focusing on Clinico-Radiological Differentiation Between Benign and Life-Threatening Causes.

Pneumatosis of the alimentary tract may occur from the esophagus to rectum as a result of a wide spectrum of conditions that range from benign to life-threatening. Although distinguishing between these 2 groups is of paramount importance for an appropriate clinical management, it still remains a challenge for the radiologist in the daily practice. In the light of the current literature, we provide in the present article a comprehensive review focusing on the clinical, laboratory, and radiological findings that most consistently may allow such a differentiation. We also provide a pictorial essay illustrating this range of diagnoses, briefly discussing each one.

Idiopathic Pneumatosis Intestinalis Requiring Decompressive Laparotomy.

INTRODUCTION: Pneumatosis intestinalis (PI) and hepatic portal venous gas (HPVG) are radiographic signs of questionable bowel ischemia. Pneumatosis intestinalis can be associated with possible benign conditions such as obstructive airway disease. We present a patient who demonstrated clinical signs of overt sepsis with corresponding radiological findings of PI and HPVG concering for possible small or large bowel ischemia. However at exploration, no sign of small or large bowel injury or ischemia could be detected. CASE PRESENTATION: A 36-year-old male with a history of alcohol abuse presented to Danbury Hospital as a trauma alert after he slid on his motorcycle. He had a complete transection of the thoracic spinal cord which required multilevel laminectomies and a spinal fusion. He developed overt signs of sepsis with vital signs of a temperature of 38.5 degrees C (101.4 degrees F), heart rate of 141 bpm, white blood cell (WBC) count of 24.7 c/mcL, and lactic acid of 2.4 mg/dL. A CT scan of the abdomen and pelvis revealed a pneumatosis and hepatic portal venous gas. An exploratory laparotomy was performed which showed distended small bowel, but no evidence for ischemia or injury. An ABthera Open Abdomen Negative Pressure Therapy System (Kinetic Concepts, Inc., San Antonio, TX) was placed due to the fact that the abdominal wall could not be closed. A second look laparotomy revealed no injury or ischemia, and the patient's abdomen was closed primarily. CONCLUSION: Pneumatosis intestinalis and hepatic portal venous gas are radiographic findings that can be associated with bowel ischemia. The clinical status of the patient should guide operative management. There is no evidence to suggest that there is an association with spinal trauma and pneumatosis intestinalis or hepatic portal venous gas.

Neumatosis quística intestinal: presentación de tres casos y revisión de la literatura / Three cases of cystic intestinal pneumatosis and review of the literature

La neumatosis quística intestinal es una entidad rara que se caracteriza por la presencia de gas en la pared intestinal a modo de quistes aéreos sin revestimiento epitelial, rodeados o no por un infiltrado granulomatoso con células gigantes multinucleadas. Los autores describen tres casos de la forma secundaria de esta entidad, dos asociados a adenocarcinoma de colon y uno a enfermedad de Crohn. Los casos se corresponden muy bien con lo descrito en la literatura, con la peculiaridad de que uno de ellos presenta algunos quistes rellenos de un líquido transparente, proteináceo, algo que no hemos encontrado descrito en la bibliografía consultada. Como conclusión, podemos decir que la neumatosis quística intestinal es una entidad rara o poco frecuente, generalmente asintomática y usualmente asociada a otra patología subyacente. Ante la presencia de quistes con contenido aéreo en el espesor de la pared intestinal tenemos que pensar y descartar esta patología(AU)

Pneumatosis cystoides instestinalis is a rare condition characterized by the presence of air in the bowel wall in the form of gas-filled non-epithelial cysts, which may or may not be surrounded by a granulomatous infiltrate with multinucleate giant cells. Three cases of the secondary form of pneumatosis cystoides instestinalis are described, two associated with colon adenocarcinoma and the other with Crohn's disease. Whilst their general appearance was characteristic, one case had cysts filled with a transparent, proteinaceus liquid. To our knowledge this unusual feature has not been previously reported. In conclusion, pneumatosis cystoides intestinalis is infrequent, generally non-symptomatic and usually associated with other subjacent pathology. It should be considered in the differential diagnosis when gas-filled cysts in the bowel wall are found(AU)

Pneumatosis cystoides intestinalis: a single center experience.

AIM: To share our experience of the management and outcomes of patients with pneumatosis cystoides intestinalis (PCI). METHODS: The charts of seven patients who underwent surgery for PCI between 2001 and 2009 were reviewed retrospectively. Clinical features, diagnoses and surgical interventions of patients with PCI are discussed. RESULTS: Seven patients with PCI (3 males, 4 females; mean age, 50 ± 16.1 years; range, 29-74 years) were analyzed. In three of the patients, abdominal pain was the only complaint, whereas additional vomiting and/or constipation occurred in four. Leukocytosis was detected in four patients, whereas it was within normal limits in three. Subdiaphragmatic free air was observed radiologically in four patients but not in three. Six of the patients underwent an applied laparotomy, whereas one underwent an applied explorative laparoscopy. PCI localized to the small intestine only was detected in four patients, whereas it was localized to the small intestine and the colon in three. Three patients underwent a partial small intestine resection and four did not after PCI was diagnosed. Five patients were diagnosed with secondary PCI and two with primary PCI when the surgical findings and medical history were assessed together. Gastric atony developed in one case only, as a complication during a postoperative follow-up of 5-14 d. CONCLUSION: Although rare, PCI should be considered in the differential diagnosis of acute abdomen. Diagnostic laparoscopy and preoperative radiological tests, including computed tomography, play an important role in confirming the diagnosis.

Pneumatosis intestinalis after laparoscopic appendectomy: case report and review of the literature.

Pneumatosis intestinalis (PI) is the presence of intraluminal gas within the wall of the intestine. As a marker for bowel injury owing to mucosal injury, PI may herald a severe underlying disease process in patients without a significant medical history. In other cases, PI is a benign process, and expectant management is appropriate. Here, we present the first reported case of pneumatosis associated with postoperative abscess after appendectomy and its successful management. Then, we describe the pathophysiology of pneumatosis and review the literature regarding its origin and management.

Pneumatosis cystoides intestinalis related to gastric outlet obstruction: a case report.

Pneumatosis remains a rare condition presenting with multiple gas filled cysts at various parts of the GIT. It islmost always a secondary finding in a already active disease. It is very usual for it to be found occasionally at a routine examination. In the following study we present a case of intestinal pneumatosis in a 49-year-old female patient who underwent routine surgery for gastric dilatation as a complication of a chronic peptic ulcer. After exploration of the abdominal cavity, a polycystic tumor formation was found at the terminal ileum. It was further resected and sent for pathohystology analysis according to which it was stated that it was a cystoid intestinal pneumatosis on a terminal ileum. The presented case went in favour of the mechanical theory which states that pyloric gastric outlet obstruction is the most common cause of intestinal pneumatosis.