Large Omental Metastases of a Gastrointestinal Stromal Tumor

Medicina ◽  
2011 ◽  
Vol 47 (11) ◽  
pp. 86
Author(s):  
Povilas Ignatavičius ◽  
Tomas Petraitis ◽  
Žilvinas Saladžinskas ◽  
Lilija Butkevičienė ◽  
Kristina Žvinienė
Keyword(s):  
Case Report ◽  
Gastrointestinal Tract ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Interstitial Cells Of Cajal ◽  
Metastatic Tumor ◽  
Stromal Tumor ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Cells Of Cajal

Gastrointestinal stromal tumors are rare tumors, originating from the interstitial cells of Cajal. They are the most common mesenchymal tumors of the gastrointestinal tract. Metastatic tumor is treated with imatinib mesylate. A case of large metastases of a gastrointestinal stromal tumor to the omentum, diagnosis and treatment principles are presented in this case report.

scholarly journals Giant gastrointestinal stromal tumor of ileum: the gist of GIST: a case report

2017 ◽  
Vol 4 (3) ◽  
pp. 1096
Author(s):  
M. S. Ray ◽  
B. S. Deepak
Keyword(s):  
Case Report ◽  
Gastrointestinal Tract ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Standard Of Care ◽  
Clinical Situation ◽  
Stromal Tumor ◽  
Curative Therapy ◽  
Stromal Tumors ◽  
Mesenchymal Neoplasms

Gastrointestinal stromal tumors (GIST) are relatively rare pathology as compared with other mitotic lesions of GIT. However, GIST is the most common mesenchymal neoplasms of the gastrointestinal tract. Biopsy of the lesion and Immuno-Histo-Chemistry (IHC) for CD117 confirms the diagnosis. Surgery remains the standard of care and only potentially curative therapy for patients with primary, resectable, localized gastrointestinal stromal tumor. However, chemotherapy with Imatinib is added in neoadjuvant or adjuvant form according to clinical situation, and histopathological status of the lesion.

scholarly journals Extra-Gastrointestinal retroperitoneal giant stromal tumor complicated with intra-tumoral hemorrhage: case report and literature review

2015 ◽  
Vol 21 (1) ◽  
pp. 1-6
Author(s):  
B.A. Suciu ◽  
V. Bud ◽  
Doina Milutin ◽  
Ioana Halmaciu ◽  
C. Constantin ◽  
...  
Keyword(s):  
Case Report ◽  
Gastrointestinal Tract ◽  
Literature Review ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Stromal Tumor ◽  
Stromal Tumors ◽  
Pathological Characteristics ◽  
Mesenchymal Origin ◽  
Extragastrointestinal Stromal Tumor

Abstract Gastrointestinal stromal tumors are an uncommon sarcomas with mesenchymal origin that arises in the gastrointestinal tract. Recently, most of the published reports describe such tumors located outside of the gastrointestinal tract, with similar pathological characteristics and are named extra-gastrointestinal stromal tumors. We report the case of a patient suffering for a giant retroperitoneal extra-gastrointestinal stromal tumor, complicated with intra-tumoral hemorrhage. The particularity of this case is the presence of the intra-tumoral hemorrhage in a retroperitoneal extragastrointestinal stromal tumor that grew rapidly in volume (in 1 week).

scholarly journals Extra - Intestinal Gastrointestinal Stromal Tumor of Omentum

2014 ◽  
Vol 4 (8) ◽  
pp. 682-684
Author(s):  
S Basnet ◽  
A Lakhey
Keyword(s):  
Gastrointestinal Tract ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Rare Case ◽  
Stromal Tumor ◽  
Malignant Neoplasms ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Rare Tumors

Gastrointestinal stromal tumors are rare tumors, constituting less than 3% of all gastrointestinal malignant neoplasms but are the most common mesenchymal tumors of the gastrointestinal tract. Approximately 10% of gastrointestinal stromal tumors are extraintestinal and mostly arise from the mesentery or omentum. Here we report a rare case of an extraintestinal gastrointestinal stromal tumor of mesentery. Morphological and immunohistochemical features led to a diagnosis of extra-gastrointestinal stromal tumor.DOI: http://dx.doi.org/10.3126/jpn.v4i8.11610 Journal of Pathology of Nepal; Vol.4,No. 8 (2014) 682-684

scholarly journals Orai1 mediates tumor-promoting store-operated Ca2+ entry in human gastrointestinal stromal tumors via c-KIT and the extracellular signal–regulated kinase pathway

Tumor Biology ◽  
2017 ◽  
Vol 39 (2) ◽  
pp. 101042831769142 ◽  
Author(s):  
Lei Wang ◽  
Jiaqi Hao ◽  
Yijian Zhang ◽  
Ziyi Yang ◽  
Yang Cao ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Interstitial Cells Of Cajal ◽  
Interstitial Cells ◽  
Stromal Tumor ◽  
Extracellular Signal Regulated Kinase ◽  
Stromal Tumors ◽  
Extracellular Signal ◽  
Cells Of Cajal

Gastrointestinal stromal tumors originate from interstitial cells of Cajal, the pacemaker cells of the gut. Ca2+ regulates the pacemaker activity of interstitial cells of Cajal. Store-operated Ca2+ entry mediates the majority of Ca2+ entry in most cancer cells and may be a factor in regulating intracellular Ca2+ in interstitial cells of Cajal and gastrointestinal stromal tumors. Therefore, a blockade of this mechanism may affect the progression of gastrointestinal stromal tumors. Orai1 is the pore subunit of store-operated Ca2+ channels. Here, we reported that Orai1 was overexpressed in gastrointestinal stromal tumor tissues and was positively correlated with a high-risk grade in gastrointestinal stromal tumor patients. Furthermore, upon Orai1 silencing, the functional store-operated Ca2+ entry in gastrointestinal stromal tumor cells was decreased, indicating that the function of store-operated Ca2+ entry was mediated by Orai1. Inhibition of Orai1-mediated store-operated Ca2+ entry by Orai1 silencing or store-operated Ca2+ entry blockers (SKF-96365 and 2-aminoethyl diphenylborate) induced obvious cell proliferation suppression, cell-cycle distribution, and apoptosis stimulation in GIST-T1 cells. Conversely, Orai1 overexpression increased store-operated Ca2+ entry and cell proliferation in GIST882 cells. In addition, we found that activation of c-KIT and the extracellular signal–regulated kinase pathway participated in the oncogenic functions of Orai1-mediated store-operated Ca2+ entry in gastrointestinal stromal tumor cells. These results revealed that Orai1-mediated store-operated Ca2+ entry is critical for gastrointestinal stromal tumor cell proliferation via c-KIT and ERK signaling pathway activation. Orai1-mediated store-operated Ca2+ entry plays an oncogenic role and may be a novel prognostic factor and therapeutic target for patients with gastrointestinal stromal tumors.

scholarly journals Massive hemorrhage of upper gastrointestinal tract caused by gastrointestinal stromal tumor of the stomach: Case report

2012 ◽  
Vol 65 (7-8) ◽  
pp. 341-345
Author(s):  
Nenad Lalovic ◽  
Nikolina Dukic-Vladicic ◽  
Radmil Maric ◽  
Mirjana Cuk ◽  
Milan Simatovic ◽  
...  
Keyword(s):  
Case Report ◽  
Gastrointestinal Tract ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Digestive System ◽  
Massive Hemorrhage ◽  
Stromal Tumor ◽  
Acute Bleeding ◽  
Stromal Tumors ◽  
Upper Gastrointestinal

Introduction. Acute bleeding from the upper gastrointestinal system is a medical emergency which is followed by high mortality rate, ranging from 6 to 15% in spite of modern diagnostic methods and treatment. Bleeding from the upper gastrointestinal system may be caused by gastrointestinal stromal tumors of the stomach, which are mainly characterized by occult bleeding, while profuse bleeding rarely occurs accompanied by hemorrhagic shock. Gastrointestinal stromal tumors of stomach are the most common mesenchimal tumors of the gastrointestinal tract. Case Report. In our study we showed a 60-year-old female patient with profuse bleeding from the stomach and the clinical picture of severe hemorrhagic shock, caused by gastrointestinal stromal tumor. An ovoid junction, raised towards the lumen, covered with ulcerated mucosa in several places and followed by massive arterial bleeding was found intraoperatively, after the performed gastrotomy. Histopathological examination with immunohistochemical analysis confirmed that this was a gastrointestinal stromal tumor of the stomach. Discussion. Acute bleeding from the digestive system is a sudden and serious condition of the body. Urgent esophagogastroduodenoscopy is a sensitive and specific diagnostic and therapeutic method of choice. Massive bleeding from the upper gastrointestinal tract is very rarely caused by gastrointestinal stromal tumors, whose clinical picture is very heterogeneous and depends on tumor size and location. Abundant bleeding from the tumor is an indication for urgent surgical intervention. Conclusion. According to the literature massive hemorrhage of the upper digestive system can rarely be caused by gastrointestinal stromal tumor of the stomach. It is shown that abundant hemorrhage of the upper digestive tract can be caused with gastric gastrointestinal stromal tumor. Surgical resection is the main form of treatment of gastrointestinal stromal tumors of the digestive system and bleeding from these tumors caused by failure of endoscopic hemostasis.

Imatinib in the Management of Multiple Gastrointestinal Stromal Tumors Associated With a Germline KIT K642E Mutation

2007 ◽  
Vol 131 (9) ◽  
pp. 1393-1396
Author(s):  
Janet Graham ◽  
Maria Debiec-Rychter ◽  
Christopher L. Corless ◽  
Robin Reid ◽  
Rosemarie Davidson ◽  
...  
Keyword(s):  
Gastrointestinal Stromal Tumors ◽  
Interstitial Cells Of Cajal ◽  
Germline Mutations ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Pdgfra Gene ◽  
Oncogenic Mutations ◽  
Esophageal Tumors ◽  
Exon 11 ◽  
Cells Of Cajal

Abstract Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gut and are distinguished by expression of CD117 (c-Kit). Oncogenic mutations in the KIT or PDGFRA gene are detected in approximately 85% of sporadic GISTs. In recent years, examples of familial GIST have been reported in which germline mutations of KIT or PDGFRA result in multiple GISTs, skin disorders, and other abnormalities. The most common germline mutations are in KIT exon 11, mutations in exons 8 and 17 have also been described, and there are 2 families with germline PDGFRA mutations. We present a case in which a germline KIT exon 13 mutation (K642E) was discovered in a patient with multiple GISTs of rectum, small intestine, and esophagus, as well as diffuse hyperplasia of the interstitial cells of Cajal. To our knowledge, this is only the second germline example of this particular mutation. The patient's esophageal tumors were stabilized with imatinib.

scholarly journals Gastric schwannoma: a benign tumor often misdiagnosed as gastrointestinal stromal tumor

2015 ◽  
Vol 5 (3) ◽  
Author(s):  
Apurva S. Shah ◽  
Pravin M. Rathi ◽  
Vaibhav S. Somani ◽  
Astha M. Mulani
Keyword(s):  
Differential Diagnosis ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Rare Case ◽  
Benign Tumor ◽  
Stromal Tumor ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Gastric Schwannoma ◽  
Gastric Mass

Gastric schwannomas are rare mesenchymal tumors that arise from the nerve plexus of gut wall. They present with nonspecific symptoms and are often detected incidentally. Preoperative investigation is not pathognomic and many are therefore misdiagnosed as gastrointestinal stromal tumors. We report a rare case of a 37-year old woman who underwent laparotomy for complex bilateral ovarian cyst with resection of gastric-gastrointestinal stromal tumor preoperatively, but confirmed to have a gastric schwannomas postoperatively. This case underscores the differential diagnosis of submucosal, exophytic gastric mass as schwannoma.

scholarly journals Primary Extra-gastrointestinal Stromal Tumor of Retroperitoneum

2012 ◽  
Vol 6 ◽  
pp. CMO.S9180 ◽  
Author(s):  
Claudio Casella ◽  
Vincenzo Villanacci ◽  
Filippo D'adda ◽  
Manuela Codazzi ◽  
Bruno Salerni
Keyword(s):  
Gastrointestinal Tract ◽  
Gastrointestinal Stromal Tumor ◽  
Gastrointestinal Stromal Tumors ◽  
Stromal Tumor ◽  
Radiological Evaluation ◽  
Retroperitoneal Mass ◽  
Stromal Tumors ◽  
Mesenchymal Neoplasms ◽  
Paravertebral Region ◽  
Histology And Immunohistochemistry

Background Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract. More rarely neoplasms with histology and immunohistochemistry similar to GISTs may occur outside the gastrointestinal tract (omentum, mesentery and retroperitoneum) and are so-called Extra-gastrointestinal Stromal Tumors (EGISTs). EGISTs arising in the retroperitoneum are extremely rare: to date, only 58 cases have been reported in the literature. Case Report We herein report a case of a primary EGIST of the retroperitoneum surgically treated. The pre-operative radiological evaluation showed a retroperitoneal mass, placed in left paravertebral region. Results Morphological and immunohistochemical features led to a diagnosis of extra-gastrointestinal stromal tumor (intermediate-low risk form). Conclusions As a result of the rarity of reports of primary EGISTs of retroperitoneum we need to analyze the data of reported cases in order to gain a better understanding about the pathogenesis, prognosis and optimal treatment of this disease.

Gallbladder GIST: A review of literature

2019 ◽  
Vol 92 (1) ◽  
pp. 1-5
Author(s):  
Ashish Gupta
Keyword(s):  
Gastrointestinal Stromal Tumors ◽  
Interstitial Cells Of Cajal ◽  
Case Reports ◽  
Gallbladder Wall ◽  
Postoperative Adjuvant Therapy ◽  
Review Of Literature ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Extensive Search ◽  
Cells Of Cajal

Mesenchymal tumors of the gallbladder are rarely encountered in clinical practice. The Gastrointestinal Stromal tumors(GIST) of the gallbladder are rarely encountered. These tumors most commonly arise from the interstitial cells of cajal(ICC), the pacemakers of the intestinal system. There can be benign as well as malignant form of GIST .The literature on GIST arising from the gallbladder wall is limited to few case reports only.on extensive search of the indexed literature only 9 cases of gallbladder GIST were retrieved. Based on the available literature these tumors are commonly found in females. They usually present with hypochondrial pain with or without other features of cholangitis. These tumors are usually malignant and warrant a radical surgical excision.The data on postoperative adjuvant therapy and survival is limited. The authors are presenting a review of the available literature on this rare pathology.

scholarly journals Gastrointestinal Stromal Tumors of Small Intestine

2019 ◽  
Vol 05 (03) ◽  
pp. e92-e95 ◽  
Author(s):  
Tanweerul Huda ◽  
Mahendra Pratap Singh
Keyword(s):  
Gastrointestinal Tract ◽  
Interstitial Cells Of Cajal ◽  
Surgical Excision ◽  
Biological Behavior ◽  
Pacemaker Cells ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Cells Of Cajal ◽  
Oncogene Protein

AbstractGastrointestinal stromal tumor (GIST) is defined as mesenchymal tumors of the gastrointestinal tract expressing proto-oncogene protein CD117. They are the most common sarcomatous tumors of the gastrointestinal tract. GISTs are presumed to arise from interstitial cells of Cajal or gastrointestinal pacemaker cells which control gut motility. They have unpredictable biological behavior. Prognosis is dependent on tumor size as well as mitotic count. Radical surgical excision is the treatment of choice. They rarely metastasize to lymph nodes. Imatinib therapy is used as an adjuvant therapy. The follow-up of patients postsurgery is not standardized.

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