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Updated: Jun 22, 2026
An Orthotopic Resectional Mouse Model of Pancreatic Cancer
Published on: September 24, 2020
[Primary leiomyosarcoma of the pancreas]
S Rifki Jai1, F Bensardi, A Hizaz
1Service de chirurgie viscérale III, CHU Ibn Rochd, Casablanca, Maroc. saadjai@yahoo.fr
Abstract:
Primary leiomyosarcoma (LMS) of the pancreas is a rare mesenchymal neoplasm (0.1% of pancreatic tumors) with only 35 cases reported in the world literature. We describe a 36th case. This tumor affects adults in the fifth decade of life, especially men. Its diagnosis is difficult and is based on immunohistochemical analyses that reveal smooth muscle cell markers. We report the case of a patient with primary LMS in the head of the pancreas. He underwent a pancreaticoduodenectomy for both diagnosis and treatment after imaging was unable to provide a precise diagnosis. The discussion covers the clinical, diagnostic, immunohistochemical, and therapeutic characteristics of this neoplasm.
Insights
Primary pancreatic leiomyosarcoma (LMS) is rare, affecting middle-aged men. This report details a 36th case, emphasizing diagnostic challenges and immunohistochemical markers for smooth muscle cell identification.
Area of Science:
- Oncology
- Gastroenterology
- Pathology
Background:
- Primary pancreatic leiomyosarcoma (LMS) is an exceptionally rare mesenchymal neoplasm, accounting for only 0.1% of all pancreatic tumors.
- The world literature documents only 35 previously reported cases of this rare condition.
Observation:
- This report presents the 36th documented case of primary pancreatic LMS.
- The tumor occurred in the head of the pancreas in a male patient in his fifth decade.
- Preoperative imaging failed to provide a definitive diagnosis, necessitating surgical intervention.
Findings:
- Diagnosis of pancreatic LMS is challenging and relies heavily on immunohistochemical analysis.
- Specific smooth muscle cell markers are crucial for confirming the diagnosis.
- The patient underwent a pancreaticoduodenectomy, which served for both diagnosis and treatment.
Implications:
- This case contributes to the limited understanding of pancreatic LMS.
- Accurate immunohistochemical analysis is vital for differentiating LMS from other pancreatic tumors.
- Further research into the clinical, diagnostic, and therapeutic aspects of pancreatic LMS is warranted.
