Clinical significance of intraperitoneal air on computed tomography scan after endoscopic submucosal dissection in patients with gastric neoplasms

With the increased use of chest computed tomography (CT) scan in the initial evaluation of major trauma, findings that were not seen on a chest radiograph (CXR) are increasingly identified. Pneumomediastinum (PM) seen on CXR in blunt trauma patients is considered worrisome for airway and/or esophageal injury. The purpose of this study was to determine the incidence and clinical significance of PM found on CT in blunt trauma patients. Blunt trauma patients admitted to a single Regional Trauma Center over a 2-year period were identified. Records were reviewed for demographics, mechanism, diagnostic evaluations, injuries, and outcome. A total of 2052 patients met study criteria. Fifty-five (2.7%) had PM; 49 patients (89%) had PM identified on CT alone, whereas six patients (11%) had it identified on both CXR and CT. There was no significant difference in gender or age between the two groups. Associated injuries were similar between groups. No patients had tracheobronchial or esophageal injuries. In this study, PM seen on CT was found to have little clinical significance other than as a marker for severe blunt trauma. No patients with airway or esophageal injuries were seen in any of the PM patients.

Download Full-text

Early Gastric Adenosquamous Carcinoma Resected Using Endoscopic Submucosal Dissection

Case Reports in Gastroenterology ◽

10.1159/000499447 ◽

2019 ◽

Vol 13 (1) ◽

pp. 165-172 ◽

Cited By ~ 2

Author(s):

Han-Ik Bae ◽

An Na Seo

Keyword(s):

Endoscopic Submucosal Dissection ◽

Lymphovascular Invasion ◽

Adenosquamous Carcinoma ◽

Incidental Finding ◽

Wall Thickening ◽

Computed Tomography Scan ◽

East Asians ◽

Submucosal Dissection ◽

Lymph Node Enlargement ◽

Tomography Scan

Adenosquamous carcinoma (ASC) is characterized as a mixed neoplasia (adenocarcinoma with glandular architecture and squamous cell carcinoma [SqCC]). Because most ASCs are found in the advanced stage at the time of diagnosis, early gastric ASC is an extremely rare tumor. Here, we present the case of an incidental finding of early gastric ASC in a 61-year-old Korean man during a health screening. Histological biopsy through esophagogastroduodenoscopy revealed a moderately differentiated adenocarcinoma in the distal body. The patient underwent endoscopic submucosal dissection and was diagnosed with ASC. The SqCC components of this tumor were located adjacent to the adenocarcinoma components and occupied 40% of the tumor. Two individual tumor components had invaded into the submucosal layer with lymphovascular invasion. An abdominal computed tomography scan indicated no definite mass or wall thickening of the stomach and revealed neither lymph node enlargement nor distant metastasis. To the best of our knowledge, this is the 14th reported case of early gastric ASC, and all cases were reported in East Asians.

Download Full-text

Influence of Preadjusted Bracket Shape and Positioning Reference on Angulation of Upper Central Incisor

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1931 ◽

2016 ◽

Vol 17 (10) ◽

pp. 786-790

Author(s):

Osmar A Cuoghi ◽

Francielle Topolski ◽

Mauricio A de O Accorsi ◽

Hugo J Trevisi ◽

Ricardo Moresca

Keyword(s):

Computed Tomography ◽

Clinical Significance ◽

Central Incisor ◽

Computed Tomography Scan ◽

Software Analysis ◽

Treatment Techniques ◽

Incisal Edge ◽

Bracket Positioning ◽

Tomography Scan ◽

Dental Crown

ABSTRACT Aim To verify the influence of different bracket shapes and placement references according to Andrews and MBT systems on the expression of angulation in upper central incisors (UCI). Materials and methods Bracket positioning and mesiodistal dental movement simulations were performed and the angulations produced in the dental crown were evaluated, based on computed tomography scan images of 30 UCI and AutoCAD software analysis. Rectangular (Andrews) and rhomboid (MBT) brackets were placed according to the references recommended by Andrews and MBT systems – long axis of the clinical crown (LACC) and incisal edge (IE) respectively. Results Data showed that the use of LACC as reference for bracket positioning produced 5° and 4° UCI angulations in Andrews and MBT brackets respectively. The use of IE produced a 1.2° mean angulation in UCI for both brackets. Conclusion When the LACC was used as reference for bracket positioning, the UCI crown angulation corresponded to the angulation built into the brackets, regardless of shape, while the use of IE resulted in natural crown angulation, regardless of bracket shape. Clinical significance This research contributes to guide the orthodontist in relation to the different treatment techniques based on the use of preadjusted brackets. How to cite this article Topolski F, de O Accorsi MA, Trevisi HJ, Cuoghi OA, Moresca R. Influence of Preadjusted Bracket Shape and Positioning Reference on Angulation of Upper Central Incisor. J Contemp Dent Pract 2016;17(10):786-790.

Download Full-text