Nonepithelial Esophageal Tumors: Leiomyomas and GI Stromal Tumors

2019 ◽  
Author(s):  
Urs von Holzen ◽  
Daniel C Wiener ◽  
Jon O Wee
Keyword(s):  
Soft Tissues ◽  
Oral Contrast ◽  
Body Parts ◽  
Stromal Tumors ◽  
Nerve Sheath Tumors ◽  
Peripheral Nerve Sheath Tumors ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Esophageal Tumors ◽  
Common Group

Nonepithelial esophageal tumors can be classified into two groups. The most common group consists of GI stromal tumors (GISTs). The less common group consists of several tumors similar to tumors arising from soft tissues of other body parts (eg, lipomas, liposarcomas, leiomyomas, leiomyosarcomas, peripheral nerve sheath tumors). Differentiation between these two groups is based on the near-universal expression of CD117 in GISTs, as opposed to other spindle cell tumors. Although some of these tumors are asymptomatic and discovered accidentally during CT or endoscopies for other reasons, they often cause some unspecific symptoms (eg, bloating, dysphagia, early satiety). Contrast-enhanced CT with IV and oral contrast is the examination of choice to evaluate these tumors, as extent of the tumor and presence of metastatic disease can be determined. Surgical resection is generally recommended for tumors larger than 2 cm or symptomatic tumors. This review contains 4 figures, 2 tables, and 35 references. Key Words: GIST, leiomyoma, leiomyosarcoma, nonepithelial esophageal tumors, esophagus, diagnosis, treatment, follow-up

Nonepithelial Esophageal Tumors: Leiomyomas and GI Stromal Tumors

2019 ◽  
Author(s):  
Urs von Holzen ◽  
Daniel C Wiener ◽  
Jon O Wee
Keyword(s):  
Soft Tissues ◽  
Oral Contrast ◽  
Body Parts ◽  
Stromal Tumors ◽  
Nerve Sheath Tumors ◽  
Peripheral Nerve Sheath Tumors ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Esophageal Tumors ◽  
Common Group

Nonepithelial esophageal tumors can be classified into two groups. The most common group consists of GI stromal tumors (GISTs). The less common group consists of several tumors similar to tumors arising from soft tissues of other body parts (eg, lipomas, liposarcomas, leiomyomas, leiomyosarcomas, peripheral nerve sheath tumors). Differentiation between these two groups is based on the near-universal expression of CD117 in GISTs, as opposed to other spindle cell tumors. Although some of these tumors are asymptomatic and discovered accidentally during CT or endoscopies for other reasons, they often cause some unspecific symptoms (eg, bloating, dysphagia, early satiety). Contrast-enhanced CT with IV and oral contrast is the examination of choice to evaluate these tumors, as extent of the tumor and presence of metastatic disease can be determined. Surgical resection is generally recommended for tumors larger than 2 cm or symptomatic tumors. This review contains 4 figures, 2 tables, and 35 references. Key Words: GIST, leiomyoma, leiomyosarcoma, nonepithelial esophageal tumors, esophagus, diagnosis, treatment, follow-up

Nerve Sheath Tumors—Schwannomas and Neurofibromas

2018 ◽  
Author(s):  
Christian Heinen ◽  
Thomas Kretschmer
Keyword(s):  
Peripheral Nerve ◽  
Nerve Sheath Tumor ◽  
Surgical Strategies ◽  
Treatment Timing ◽  
Nerve Sheath Tumors ◽  
Peripheral Nerve Sheath Tumors ◽  
Nerve Tumor ◽  
Nerve Sheath ◽  
Contrast Enhanced

A benign peripheral nerve sheath tumor is illustrated in a case presentation of a painful mass in the medial thigh, with paresthesias radiating along the course of the saphenous nerve. The presenting features, appropriate workup, treatment timing, surgical strategies, follow-up, and results for nerve-associated masses are outlined. Specific imaging findings for peripheral nerve sheath tumors on contrast-enhanced MR imaging and the merits of high-resolution ultrasound are detailed. The typical features of a well-defined and noninvasive peripheral nerve tumor, the principles of exploration, and microsurgical enucleation technique are highlighted. Other nerve tumor entities that should be considered in the differential diagnosis, as well as their respective features, are discussed.

Computer-Aided Detection of Polyps on Oral Contrast–Enhanced CT Colonography

2005 ◽  
Vol 184 (1) ◽  
pp. 105-108 ◽  
Author(s):  
Ronald M. Summers ◽  
Marek Franaszek ◽  
Meghan T. Miller ◽  
Perry J. Pickhardt ◽  
J. Richard Choi ◽  
...  
Keyword(s):  
Ct Colonography ◽  
Oral Contrast ◽  
Computer Aided Detection ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Computer Aided

scholarly journals Gastrointestinal stromal tumors: associations between contrast-enhanced CT images and KIT exon 11 gene mutation

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Xijiao Liu ◽  
Yuan Yin ◽  
Xiaozhou Wang ◽  
Caiwei Yang ◽  
Shang Wan ◽  
...  
Keyword(s):  
Gene Mutation ◽  
Gastrointestinal Stromal Tumors ◽  
Ct Images ◽  
Stromal Tumors ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Exon 11

scholarly journals Computed tomography in intestinal obstruction: a tertiary care perspective from Northern India

2021 ◽  
Vol 9 (1) ◽  
pp. 48
Author(s):  
Varun Dogra ◽  
Shyam Gupta ◽  
Ishfaq Ahmad Gilkar ◽  
Silvi Sandhu
Keyword(s):  
Computed Tomography ◽  
Intestinal Obstruction ◽  
Tertiary Care ◽  
Oral Contrast ◽  
Emergency Rooms ◽  
Additional Information ◽  
Northern India ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Background: Intestinal obstruction is a very common surgical emergency faced today in surgical ERs (emergency rooms) all around the globe. With the advent of newer technology, management of intestinal obstruction has changed significantly. Today computed tomography (CT) employs both intravenous as well as oral contrast for determining the cause and the level of obstruction. It also gives additional information regarding any malignancy causing the obstruction, its staging and status of vessels. Thus, a surgeon can go in the procedure with a plan already in mind which can be discussed in detail with experienced surgeons beforehand.Methods: This was a prospective observational study that was done in department of surgery at GMC Jammu over a period of two years. Patients of intestinal obstruction who presented to our department were enrolled in this study. They were subjected to a contrast enhanced CT after due preparation and managed accordingly. Data was recorded in a tabulated fashion and evaluated.Results: After implementing the exclusion criteria’s, a total of 163 patients were included in this study, majority being males in the age group of 20-40 years. Major cause of intestinal obstruction was attributed to post-operative adhesions followed by band obstruction due to various cause. CT findings were seen to be quite significant in evaluation and management of intestinal obstruction. About 30 % of the patients enrolled in our study were treated conservatively while 70 % required operative intervention in form of exploratory laparotomy.Conclusions: Computed tomography is widely available now a days at a cheaper cost. It greatly increases the armamentarium of the surgeon in dealing with this condition. A lot many cases today are dealt conservatively due to high utilisation of CT scan. It also helps the surgeon to preoperatively plan a proper surgical approach

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