Monitoring and modulating the trajectory of eosinophilic esophagitis.

Current treatments of eosinophilic esophagitis (EoE) aim to eliminate esophageal mucosal inflammation and attenuate, stabilize, or reverse stricture formation. However, our ability to study the long-term course of esophageal strictures in patients with EoE is hampered by the short-term existence of this disease. It is unclear to what degree of control of inflammation is needed to prevent stricture formation. Additionally, identified phenotypes of EoE may ultimately dictate different levels of concern and time intervals for developing fibrosis. Currently, multiple methods are used to monitor patients' disease progression to fibrosis, as symptoms alone do not correlate with disease activity. Endoscopic findings and mucosal histology are used to monitor disease activity, but these focus on improvements in inflammation with inconsistent evaluation of underlying fibrosis. The use of functional lumen impedance planimetry, barium esophagraphy, and endoscopic ultrasound continues to expand in EoE. The rapid advancements in EoE have led to an armamentarium of measuring tools and therapies that holistically characterize disease severity and response to therapy. Nevertheless, our ability to evaluate gross esophageal fibrosis and stricture formation from a transmural rather than mucosal view should be a focus of future investigations because it is essential to monitoring and modulating the trajectory of EoE.

Esophageal Lichen Planus: Clinical and Radiographic Findings in Eight Patients.

OBJECTIVE: The purpose of this study is to present the clinical and radiographic findings of esophageal lichen planus. MATERIALS AND METHODS: A search of computerized medical records identified 15 patients with pathologic findings of esophageal lichen planus on endoscopic biopsy specimens. Three other patients had presumed esophageal lichen planus, although no biopsy specimens were obtained. Twelve of these 18 patients (67%) had double-contrast esophagography performed at our institution; for eight of the 12 patients (67%), the studies revealed abnormalities in the esophagus. These eight patients constituted our study group. The barium esophagrams and medical records of these eight patients were reviewed to determine the clinical, radiographic, and endoscopic findings of esophageal lichen planus as well as the treatment and patient outcome. RESULTS: All eight patients were women (median age, 66.5 years), and all eight presented with dysphagia (mean duration, 3.2 years). Four patients had previous lichen planus that involved the skin (n = 1), the oral cavity (n = 2), or both (n = 1), and one patient later had lichen planus that involved the vagina. Five patients had a small-caliber esophagus with diffuse esophageal narrowing. The remaining three patients had segmental strictures in the cervical (n = 1), upper thoracic (n = 1), and distal thoracic (n = 1) esophagus. CONCLUSION: Esophageal lichen planus typically occurs in older women with longstanding dysphagia and often develops in the absence of extraesophageal disease. Barium esophagrams may reveal a small-caliber esophagus or, less commonly, segmental esophageal strictures. Greater awareness of the radiographic findings of esophageal lichen planus hopefully will lead to earlier diagnosis and better management of this condition.

Findings of Esophagography for 25 Patients After Peroral Endoscopic Myotomy for Achalasia.

OBJECTIVE: The purpose of this study is to better characterize the findings of esophagography after peroral endoscopic myotomy for achalasia. MATERIALS AND METHODS: We evaluated 25 patients who underwent peroral endoscopic myotomy for achalasia. The findings noted on pre- and postprocedural esophagrams were reviewed retrospectively and were correlated with clinical outcomes. RESULTS: None of the patients had esophageal perforation noted on esophagrams obtained after myotomy, and all but two patients had a hospital stay that lasted 1 day only. Esophagrams obtained on postoperative day 1 revealed endoscopic clips in 25 patients (100%), pneumoperitoneum in 18 (72%), retroperitoneal gas in 10 (40%), gastric pneumatosis in nine (36%), intramural dissections in seven (28%), and pneumomediastinum in four (16%). Repeat esophagrams obtained 3 weeks later for 22 of the patients revealed endoscopic clips in 16 patients (73%) and intramural dissections in five patients (23%), but the remaining findings had resolved. Eighteen patients (72%) had a successful myotomy and seven (28%) had suboptimal results on the basis of clinical outcomes. Observation of a distal esophageal width of 5 mm or less on postprocedural esophagrams was often associated with suboptimal results. CONCLUSION: Peroral endoscopic myotomy is a novel procedure that is less invasive than is laparoscopic Heller myotomy for the treatment of achalasia, with fewer complications and shorter recovery times. Radiologists should be aware of the findings expected on esophagography (including pneumoperitoneum, retroperitoneal gas, gastric pneumatosis, intramural dissections, and pneumomediastinum) and should also know that fluoroscopic studies may be helpful for predicting patient outcomes on the basis of the width of the distal esophagus after myotomy.

Consensus Statement of Society of Abdominal Radiology Disease-Focused Panel on Barium Esophagography in Gastroesophageal Reflux Disease.

OBJECTIVE: The Society of Abdominal Radiology established a panel to prepare a consensus statement on the role of barium esophagography in gastroesophageal reflux disease (GERD), as well as recommended techniques for performing the fluoroscopic examination and the gamut of findings associated with this condition. CONCLUSION: Because it is an inexpensive, noninvasive, and widely available study that requires no sedation, barium esophagography may be performed as the initial test for GERD or in conjunction with other tests such as endoscopy.

Timed barium esophagography to predict recurrent achalasia after peroral endoscopic myotomy: a retrospective study in Thailand.

Background/Aims: Achalasia is a rare esophageal motility disease, for which peroral endoscopic myotomy (POEM) has emerged as a promising treatment option; however, recurrence remains a challenge. Timed barium esophagography (TBE) is a useful diagnostic tool and potential outcome predictor of achalasia. This study aimed to determine predictive tools for recurrence after POEM. Methods: This retrospective study enrolled achalasia patients who underwent POEM between January 2015 and December 2021. Patients were categorized into two groups using the 1-month post-POEM Eckardt scores and TBE: the discordant group (Eckardt score improved >50%, TBE decreased <50%) and the concordant group (both Eckardt score and TBE improved >50%). Recurrence was defined as a reincrease in the Eckardt score to more than three during follow-up. Results: Complete medical records were available in 30 patients who underwent POEM. Seventeen patients (56.7%) were classified into the discordant group, while 13 patients (43.3%) were in the concordant group. The overall recurrence rate was 11.9% at 1-year, increasing to 23.8% during the extended follow-up. The discordant group had a 6.87 fold higher recurrence rate than the concordant group (52.9% vs. 7.7%, p=0.017). Conclusions: These results strongly suggest that combining the Eckardt score with TBE can effectively predict recurrent achalasia after POEM. Patients in the discordant group had an elevated risk.

Improved esophagography screening for esophageal motility disorders using wave appearance and supra-junctional ballooning.

BACKGROUND: High-resolution manometry (HRM) is the gold standard for diagnosing esophageal motility disorders (EMDs); however, it requires specialized equipment. The development of more accessible screening examinations is expected. We evaluated the utility of barium esophagography (BE) screening using two novel findings to diagnose EMDs. METHODS: Between January 2013 and October 2020, 244 patients with suspected EMDs who underwent both HRM and BE were analyzed. The EMD diagnosis was based on HRM findings using Chicago Classification version 3.0. BE was performed using sequential esophagography with barium sulfate. Three conventional BE findings (air-fluid level, rosary-bead/corkscrew appearance, and absent/weak peristalsis) and two novel BE findings (wave appearance and supra-junctional ballooning) were used for diagnosis. RESULTS: The sensitivity and specificity of BE screening using the two novel findings and conventional findings to diagnose EMDs were 79.4% and 88%, respectively [area under the receiver-operating characteristic curve (AUC) = 0.837]. Without these novel findings, they were 63.9% and 96%, respectively (AUC = 0.800), respectively. Achalasia was highly correlated with the air-fluid level (88.7%). Absent contractility was highly correlated with absent/weak peristalsis (85.7%). Relatively high correlations were observed between distal esophageal spasm and rosary-bead/corkscrew appearance (60%), and between achalasia and wave appearance (59.7%). The intra-observer reproducibility and inter-observer agreement for individual BE findings were 84.4% and 75%, respectively. Wave appearance was associated with higher integrated relaxation pressure (IRP) and shorter distal latency. Supra-junctional ballooning was associated with higher IRP. CONCLUSIONS: BE screening using two additional novel findings to diagnose EMDs could be useful in general practice.

Pyriform Sinus Fistula in Children: Preferred Imaging Modality and Risk Factors for Diagnostic Delay.

Background: Diagnostic delay of pyriform sinus fistula (PSF) continues to challenge clinicians, and the preferred imaging modality is yet to be verified. The purpose of this study was to investigate the preferred imaging modality for PSF and the possible risk factors for a longer diagnostic delay. Methods: Medical records of patients with a surgically confirmed PSF from 2014 to 2018 were retrospectively evaluated. A comparison of the first esophagography timing with a true-positive (TP) result and that with a false-negative (FN) result was made. Data of computed tomography (CT) performed immediately after esophagography were also analyzed. In addition, the factors related to diagnostic delay were analyzed using multivariate regression models. Results: A total of 147 patients ranging in age from 0 to 16 years (median: 5.2 years) were included. The mean time since the symptom onset of the first esophagography with TP result was significantly longer than that of the examination with FN result (95.18 ± 79.12 vs. 52.59 ± 42.40 days, P = 0.032). When the time since the symptom onset was less than 12 weeks, the false-negative rate (FNR) of the first esophagography was declining dramatically with a longer time interval. Among 18 cases with an FN result of the first esophagography, the fistulous tract was finally identified in seven cases using an immediate CT. The mean of diagnostic delay was 12.28 months. Besides, rural residency was an independent risk factor for a longer diagnostic delay. Conclusion: Joint examination of esophagography and an immediate CT is the preferred imaging modality for the diagnosis of PSF in children. It is inadvisable to perform the first esophagography when the time since the symptom onset is less than 12 weeks. Besides, the rural residency is an independent risk factor for a longer diagnostic delay.

Esophageal abnormalities in gastroesophageal reflux disease.

Fluoroscopic esophagography is a widely available, safe, and inexpensive test for detecting gastroesophageal reflux disease. In this article, we review the technique for performing a high-quality esophagram, including upright, double-contrast views of the esophagus and cardia with high-density barium; prone, single-contrast views of the esophagus with low-density barium; and evaluation of gastroesophageal reflux. We then discuss the radiographic findings associated with gastroesophageal reflux disease, including esophageal dysmotility, reflux esophagitis, peptic strictures, and Barrett's esophagus. Finally, we consider the differential diagnosis for the various radiographic findings associated with this condition. When carefully performed and interpreted, the esophagram is a useful test for evaluating gastroesophageal reflux disease and its complications.

Five neonatal cases of pyriform sinus fistula with cervical cystic lesion: a comparison between sonography and other modalities.

Pyriform sinus fistulas are an unusual cause of neck cystic lesions in neonates. A definitive diagnosis requires detection of the fistula, which originates from the pyriform sinus and extends to the cystic lesion. Sonography has been reported to be useful for detecting fistulas. However, there have been no reports of neonatal cases in which sonography could detect fistulas not detected by other modalities, such as barium esophagography, computed tomography (CT), or magnetic resonance imaging (MRI). We describe five neonatal patients with pyriform sinus fistula-appearing cervical cystic lesions. All patients were examined by sonography; of these, three patients were also examined by barium esophagography, two by CT, and one by MRI. The fistula was detected by sonography but not CT in one patient and by barium esophagography but not MRI in one. Two patients whose fistulas were detected by sonography had an oval-shaped and relatively small cystic lesion. One patient whose fistula could be detected only by barium esophagography had a relatively large cystic lesion. In two patients, whose fistulas were not detected by sonography or barium esophagography, sonography revealed air bubbles within the cystic lesions, and a pyriform sinus fistula was suspected. Without requiring ionizing radiation, sonography was thus useful in diagnosing pyriform sinus fistula-appearing cervical cystic lesions in neonatal cases. On the other hand, in two patients whose fistulas were not detected by sonography, the shape of the cystic lesion was polygonal or multicystic. In two of three patients with infectious signs, a fistula could not be detected. The shape and size of the cystic lesion and the presence of infectious signs may be important factors for detecting fistulas.

Elevated Z line: a new sign of Barrett's esophagus on double-contrast barium esophagograms.

We describe an elevated Z line as a new radiographic sign of Barrett's esophagus characterized by a transversely oriented, zigzagging, barium-etched line extending completely across the circumference of the midesophagus. An elevated Z line is rarely seen in other patients, so this finding should be highly suggestive of Barrett's esophagus on double-contrast barium esophagograms. If the patient is a potential candidate for surveillance, endoscopy and biopsy should be performed to confirm the presence of Barrett's esophagus.

Diagnosis and management of pyriform sinus fistula: experience in 48 cases.

PURPOSE: Pyriform sinus fistula (PSF) is often overlooked, and presents diagnostic and management challenge. The aim of this study was to highlight the value of intraoperative endoscopy-assisted intubation or methylene blue injection through the internal opening as a guide in searching for the fistula. METHODS: The charts of 48 patients diagnosed with PSF during January 1990 until January 2013 were retrospectively reviewed. The records were analyzed for sex, side of lesion, age at onset/diagnosis, initial presentations, diagnostic methods, microbiologic cultures, pathologic findings, treatments and outcomes. RESULTS: There were 22 males and 26 females, with a median age at onset and diagnosis of 2 years (range, 8 months to 9 years) and 4 years (range, 12 months to 13 years), respectively. The lesions were predominantly left sided (93.7%). The most common presentation was neck abscess (62.5%). Other presentations were acute suppurative thyroiditis/thyroid abscess (7), neck mass with or without dyspnea (9), and thyroid nodule (2). Barium esophagography showed the sinus tract in 100% cases. The positive predictive value of other modalities was oral-contrast CT 88.9%, intravenous contrast-enhanced CT 53.8%, noncontrast CT 33.3%, and sonography 7.9%. Thyroid function were reported normal in most tested cases (14/15, 93.3%). The fistula tract was lined with pseudostratified squamous epithelium or ciliated columnar epithelium, often associated with inflammatory changes. Bacteria cultured from the discharge were found to be oral flora. Partial thyroidectomy was operated on 11 cases. Two patients (2/8, 25%) who underwent open surgery without endoscopic assistance exhibited recurrence, while no recurrence was noted in children with the help of intraoperative endoscopy. Postoperative results were good in majority (93.7%). CONCLUSION: PSF should be considered in any children with repeated neck or thyroid infection/mass. The combination of barium esophagography, CT scan and ultrasound is useful to establish the diagnosis. Intraoperative endoscopy-assisted intubation or methylene blue injection through the internal opening as a guide can facilitate identification of the tract during dissection.