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Gastrointestinal Plexiform fibromyxoma

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https://www.readbyqxmd.com/read/27797068/laparoscopy-endoscopy-cooperative-surgery-for-gastric-plexiform-fibromyxoma-a-case-report
#1
Yoshikage Inoue, Shutaro Gunji, Kazutaka Obama, Hiroshi Okabe, Yoshiharu Sakai
BACKGROUND: Gastric submucosal tumors are commonly treated by partial resection under laparoscopy. However, the surgical resection of gastric submucosal tumors sometimes causes deformation of the stomach, especially in the case of intraluminal tumors located near the pylorus or esophagogastric junction. Such deformations can result in impaired diet intake and reduced quality of life. Laparoscopic endoscopic cooperative surgery has been developed to overcome these problems. This is the first report to describe a case of gastric plexiform fibromyxoma, a rare gastric submucosal tumor, that was successfully resected by laparoscopic endoscopic cooperative surgery...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27428222/unusual-focal-keratin-expression-in-plexiform-angiomyxoid-myofibroblastic-tumor-a-case-report-and-review-of-the-literature
#2
Giuseppe Quero, Teresa Musarra, Alfredo Carrato, Michelangelo Fici, Maurizio Martini, Angelo Paolo Dei Tos, Sergio Alfieri, Riccardo Ricci
BACKGROUND: Plexiform angiomyxoid myofibroblastic tumor (PAMT), also known as plexiform fibromyxoma, is a rare distinctive benign intramural tumor, typical of gastric antrum, commonly causing mucosal ulceration with upper gastrointestinal bleeding and anemia, effectively treated by complete surgical resection usually accomplished by distal gastrectomy. METHODS AND RESULTS: We herein report a 47-year-old man presenting with a syncopal episode, regurgitation and epigastric discomfort, bearing a gastric antral myxoid plexiform tumor positive for α-smooth muscle actin, vimentin and, partially, for caldesmon, desmin, and CD10; CD117, DOG1, CD34, S100, CAM5...
July 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/26998147/plexiform-fibromyxoma-with-cotyledon-like-serosal-growth-a-case-report-of-a-rare-gastric-tumor-and-review-of-the-literature
#3
Joshua Robert Kane, Natasha Lewis, Rebecca Lin, Celina Villa, Alexandra Larson, Jeffrey D Wayne, Anjana V Yeldandi, William B Laskin
Plexiform fibromyxoma is a rare, benign mesenchymal neoplasm that predilects the gastric antrum and has potential for misdiagnosis as a gastrointestinal stromal tumor (GIST). The histology of the tumor is characterized by interwoven fascicular growth of cytologically bland spindled cells within a variably myxoid stroma. The current study reports the clinicopathological and immunohistochemical findings of a plexiform fibromyxoma resected from a 28-year-old Vietnamese female. The patient presented with acute, severe abdominal pain and worsening anemia...
March 2016: Oncology Letters
https://www.readbyqxmd.com/read/26946873/plexiform-fibromyxoma-of-the-gallbladder
#4
M Fassan, R Salmaso, D Saraggi, R Alaggio, M Guido, L Balsamo, S Carniato, M Gruppo, V Ninfo, R Bardini, M Rugge
We report the unusual case of a plexiform fibromyxoma, occasionally assessed in a lithiasic gallbladder. The full thickness assessment of the gallbladder wall revealed an intra-mural, well demarked multi-nodular tumor (1 cm), consisting of a plexiform growth of spindle cells, included within a fibromyxoid stroma with a rich micro-vascular network. The tumor cells featured no nuclear atypia, nor mitotic activity. At the immunohistochemical profiling, the spindle shaped cells unequivocally featured vimentin, SMA, HHF35, collagen IV, and CD34; no cells expressed CD117, PDGFRA, CD10, desmin, GFAP, EMA, and S-100...
September 2015: Pathologica
https://www.readbyqxmd.com/read/24744134/a-case-of-gastric-plexiform-fibromyxoma-radiological-and-pathological-findings
#5
Katsumi Sakamoto, Masakazu Hirakawa, Kazushige Atsumi, Koshi Mimori, Kohei Shibata, Taro Tobo, Hidetaka Yamamoto, Hiroshi Honda
Plexiform fibromyxoma is a relatively new pathological category that consists of a rare group of non-gastrointestinal stromal tumors with a peculiar plexiform growth pattern. We report a case of gastric plexiform fibromyxoma in a 60-year-old man. Gastroscopic examination revealed a gastric submucosal tumor in the antrum. Magnetic resonance imaging (MRI) showed a nodule with distinct signal hyperintensity on T2-weighted images, with strong enhancement peripherally in the early phase to the entire lesion in the delayed phase...
July 2014: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/24108557/beyond-the-gist-mesenchymal-tumors-of-the-stomach
#6
REVIEW
Hyunseon C Kang, Christine O Menias, Ayman H Gaballah, Stuti Shroff, Melissa W Taggart, Naveen Garg, Khaled M Elsayes
Intramural gastric masses arise in the wall of the stomach (generally within the submucosa or muscularis propria), often with intact overlying mucosa. These tumors are typically mesenchymal in origin and have overlapping radiologic appearances. A combination of features such as location, attenuation, enhancement, and growth pattern may suggest one diagnosis over another. Gastrointestinal stromal tumors (GISTs) account for the majority of intramural tumors and can vary widely in appearance, from small intraluminal lesions to exophytic masses that protrude into the peritoneal cavity, commonly with areas of hemorrhage or necrosis...
October 2013: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/22800485/-plexiform-fibromyxoma-of-stomach-a-distinctive-benign-tumor-of-gastric-antrum
#7
Feng-hua Wang, Zheng-rong Chen, Hui-lin Niu, Rong-xin Zeng, Jian-qing Xia
No abstract text is available yet for this article.
March 2012: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/20712648/gastric-plexiform-angiomyxoid-myofibroblastic-tumor
#8
Yetish Sing, Sumeshini Subrayan, Buhle Mqadi, Pratistadevi K Ramdial, Jenendhiran Reddy, Manogran S Moodley, Shamim Bux
Plexiform angiomyxoid myofibroblastic tumor (PAMT) is a relatively recently described gastric tumor with a peculiar plexiform growth pattern. PAMT is typified by a myofibroblastic immunophenotype that distinguishes it from the more common gastrointestinal stromal tumors and the rarely documented fibromyxomas. We report an additional PAMT, the seventh tumor with this label, which was an incidental finding on abdominal computed tomography scan of a 35-year-old Indian female. The tumor measured 4 x 3 x 2 cm and demonstrated plexiform architecture, myxoid stroma, prominent vasculature and spindled cells with myofibroblastic differentiation...
September 2010: Pathology International
https://www.readbyqxmd.com/read/20556828/plexiform-angiomyxoid-myofibroblastic-tumor-of-the-stomach
#9
REVIEW
Yoshihisa Takahashi, Masako Suzuki, Toshio Fukusato
Plexiform angiomyxoid myofibroblastic tumor of the stomach is a unique mesenchymal tumor that we first described in 2007. The tumor is very rare, and to date, only 18 cases confirmed by immunohistochemistry have been reported in the literature. The patients' ages ranged from 7 to 75 years (mean, 43 years), and the male-to-female ratio was approximately 1:1. Representative clinical symptoms are ulceration, associated upper gastrointestinal bleeding (hematemesis), and anemia. The tumors are located at the antrum in all cases, and grossly, the tumor is whitish to brownish or reddish, and forms a lobulated submucosal or transmural mass...
June 21, 2010: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/19675452/plexiform-fibromyxoma-a-distinctive-benign-gastric-antral-neoplasm-not-to-be-confused-with-a-myxoid-gist
#10
Markku Miettinen, Hala R Makhlouf, Leslie H Sobin, Jerzy Lasota
A great majority of gastric mesenchymal tumors are gastrointestinal stromal tumor (GIST). A rare group of non-GISTs include myxoid mesenchymal neoplasms. In this report, we describe 12 cases of a distinctive gastric tumor, named here as plexiform fibromyxoma. These tumors occurred in 5 men and 7 women of ages 7 to 75 years (median, 41 y). All tumors were located in the gastric antrum and 6 of them also extended into extragastric soft tissues or into the duodenal bulb. The tumors measured from 3 to 15 cm (median, 5...
November 2009: American Journal of Surgical Pathology
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