Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-3-19
pubmed:abstractText
Malignant mesenchymal tumors of the gallbladder are exceedingly rare. We report a malignant stromal tumor of the gallbladder with a phenotype of interstitial cells of Cajal. To our knowledge, only the benign counterpart of this tumor has been described previously. A 34-year-old woman presented with right upper quadrant abdominal pain. At the time of cholecystectomy, the gallbladder was noted to have a thickened wall and a polypoid mass arising in the neck of the gallbladder. Histologic sections showed a cellular proliferation of spindle neoplastic cells that were arranged in short fascicles. Numerous mitotic figures and foci of necrosis were noted. The neoplastic cells expressed CD117 (c-Kit protein) and vimentin. They were negative for smooth muscle actin, desmin, myoglobin, cytokeratin, S100 protein, and CD34. Our case demonstrates that a malignant stromal tumor that is histologically and immunohistochemically identical to gastrointestinal stromal tumor can occur in the gallbladder, and that the expression of CD117 may be of therapeutic importance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0003-9985
pubmed:author
pubmed:issnType
Print
pubmed:volume
126
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
481-3
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Malignant stromal tumor of the gallbladder with interstitial cells of Cajal phenotype.
pubmed:affiliation
Department of Pathology, Regional General Hospital, Social Security System, Mexico City, Mexico.
pubmed:publicationType
Journal Article, Case Reports