Stomach

• Russel body gastritis
  15 December 2016

  Definition: Russel body gastritis is a variant of plasmocytic gastritis.
  Images
  Russell body gastritis with many Mott cells. Mott cells are plasma cells packed with cytoplasmic immunoglobulin. https://twitter.com/KyleBradleyMD/status/809055849821982722
  Russell body gastritis (RBG) is a very rare, well circumscribed lesion of plasma cells containing Russell bodies in the mucosa of the stomach.
  Russell bodies are round, cytoplasmic, eosinophilic globules composed of immunoglobulins, (...)

• gastric carcinoma with granulomatous gastritis
  9 November 2016

  Images
  F78YO Gastric carcinoma (CK+ cells) with lymphoid stroma and Langhans-type cells. (CD68+ in histiocytes and Giant cells) https://twitter.com/HGongoraJaraMD/status/788402866826383360
  Paywall references
  Gastric adenocarcinoma associated with granulomatous gastritis . Case report and review of the literature. Bigotti G, Coli A, Magistrelli P, De Ninno M, Antonacci V, Crucitti A, Federico F, Antinori A, Massi G. Tumori. 2002 Mar-Apr;88(2):163-6. PMID: (...)

• MET-overexpressed gastric carcinoma
  1 November 2016

  Targeted therapy
  crizotinib
  See also
  MET-amplified tumors
  gastric carcinomas gastric adenocarcinoma
  Paywall references
  MET overexpression and amplification define a distinct molecular subgroup for targeted therapies in gastric cancer. Yang Y, Wu N, Shen J, Teixido C, Sun X, Lin Z, Qian X, Zou Z, Guan W, Yu L, Rosell R, Liu B, Wei J. Gastric Cancer. 2016 Jul;19(3):778-88. doi:10.1007/s10120-015-0545-5. PMID: (...)

• MET-amplified gastric carcinoma
  1 November 2016

  MET-amplified gastric cancer
  See also : MET
  Targeted therapy
  crizotinib
  See also
  MET-amplified tumors
  gastric carcinomas gastric adenocarcinoma
  Paywall references
  MET overexpression and amplification define a distinct molecular subgroup for targeted therapies in gastric cancer. Yang Y, Wu N, Shen J, Teixido C, Sun X, Lin Z, Qian X, Zou Z, Guan W, Yu L, Rosell R, Liu B, Wei J. Gastric Cancer. 2016 Jul;19(3):778-88. doi:10.1007/s10120-015-0545-5. PMID: (...)

• gastric adenomas
  5 October 2016

  Images
  foveolar type gastric adenoma https://twitter.com/ARP_Press/status/731849561690517504 https://twitter.com/Hopkins_GI_Path/status/565939625722920962 https://twitter.com/Lina_pathMD/status/780104150495338497
  Types
  intestinal type gastric adenoma
  foveolar type gastric adenoma
  pyloric gland adenoma
  See also
  adenomas digestive adenomas
  gastric polyps gastric tumors gastric benign (...)

• linitis plastica
  1 October 2016

  Images
  Linitis Plastica, Metastatic Signet Ring Cell Adenocarcinoma in Colon https://twitter.com/DanglisFotiosMD/status/781801656304435200
  See also
  digestive carcinomas

• focal foveolar hyperplasia
  29 September 2016

  Differential diagnosis
  hyperplastic polyp of the gastric mucosa
  Focal foveolar hyperplasia and hyperplastic polyp of the gastric mucosa can readily be differentiated on the basis of architectural and cytological criteria, even in forceps biopsy material.
  Since the hyperplastic polyp very probably does not evolve from focal foveolar hyperplasia, and the latter is not a pre-neoplastic condition or lesion, it is proposed that focal foveolar hyperplasia should no longer be referred to as (...)

• iron pill–associated gastritis
  26 September 2016

  iron pill–induced gastritis
  Images
  Iron pill gastritis https://twitter.com/ARP_Press/status/779414399517921281 https://twitter.com/docjenn/status/877581893121847296
  See also
  iron pill
  gastritis
  Perls staining

• gastric neuroendocrine tumors
  24 August 2016

  neuroendocrine neoplasms of the stomach Types
  neuroendocrine tumor (NET) neuroendocrine tumor Grade 1 / NET G1 (carcinoid) neuroendocrine tumor Grade 2 / NET G2
  neuroendocrine carcinoma (NEC) large cell neuroendocrine carcinoma NEC small cell neuroendocrine carcinoma NEC
  mixed adenoneuroendocrine carcinoma (MANEC)
  EC cell neuroendocrine tumor NET, serotonin producing neuroendocrine tumor NET (EC is Enterochromaffin Cell)
  gastrin-producing neuroendocrine tumor NET (gastrinoma) (...)

• gastric anisakiasis
  22 August 2016

  See : Anisakis
  Images
  Anisakis in stomach : gastric anisakiasis http://www.nejm.org/doi/full/10.1056/NEJMicm1509451
  Anisakis https://twitter.com/wz2145/status/856534048033972225
  See also
  gastric parasites

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