TY - JOUR
T1 - Ewing's sarcoma of the lesser sac masquerading as a pancreatic tumor
AU - Rao, Lakshmi
AU - Monappa, Vidya
AU - Rodrigues, Gabriel
AU - Suresh, B. P.
PY - 2012/3/1
Y1 - 2012/3/1
N2 - Extraosseous Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) is an uncommon, aggressive, and malignant tumor with a poor patient outcome. Its occurrence in the lesser sac is a rare event and to the best of our knowledge, has not been previously described. The present case was clinically and radiologically misdiagnosed as a pancreatic tumor/gastrointestinal stromal tumor. Histopathology revealed a tumor with "small round cells" that were positive for CD99, confirming the diagnosis of ES/PNET. This report highlights the importance of considering Ewing's sarcoma in the differential diagnosis of intraabdominal, extraintestinal masses.
AB - Extraosseous Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) is an uncommon, aggressive, and malignant tumor with a poor patient outcome. Its occurrence in the lesser sac is a rare event and to the best of our knowledge, has not been previously described. The present case was clinically and radiologically misdiagnosed as a pancreatic tumor/gastrointestinal stromal tumor. Histopathology revealed a tumor with "small round cells" that were positive for CD99, confirming the diagnosis of ES/PNET. This report highlights the importance of considering Ewing's sarcoma in the differential diagnosis of intraabdominal, extraintestinal masses.
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U2 - 10.3904/kjim.2012.27.1.91
DO - 10.3904/kjim.2012.27.1.91
M3 - Article
C2 - 22403505
AN - SCOPUS:84858385804
SN - 0494-4712
VL - 27
SP - 91
EP - 94
JO - Korean Journal of Internal Medicine
JF - Korean Journal of Internal Medicine
IS - 1
ER -