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Pathology - Pancreatic cystic tumors
Intraductal papillary mucinous neoplasm is a visible, mucin-producing tumor that develops within the pancreatic duct system.
• In men, the majority develop in the head of the pancreas. • Mucin-filled cysts communicate with the pancreatic duct system.
• Mucin-secreting columnar epithelial cells line the cysts, forming papillary projections. Epithelial cells can exhibit varying degrees of atypia. This lesion can give birth to invasive cancer.
Mucinous cystic neoplasms. • A variety of lesions, the majority of which are benign. • Symptoms of an abdominal mass are common among women. • Cystic tumors are well-defined and feature massive mucoid locules. The cysts don't communicate with the pancreatic ductal system. • The cysts are bordered by mucus-secreting columnar epithelial cells and have a dense, ovarian-like stroma beneath. The epithelial component can exhibit mild to severe atypia. Invasive carcinomas can develop within these lesions.
Serous cystic neoplasms. • Most benign lesions are found in women and cause abdominal mass symptoms. • The most frequent kind is serous microcystic adenoma, which causes a well-defined pancreatic mass with multiple tiny cysts and a central scar. The small cysts are bordered by cuboidal cells with a spherical nucleus and transparent cytoplasm, indicating glycogen buildup.
Small pseudopapillary neoplasm. • Pancreatic neoplasm with cystic change. • Commonly found in young women with abdominal mass symptoms. Tumors in the pancreas can form a solid mass with cysts and hemorrhage.
Histologically, the tumor is made up of homogeneous spherical cells that form sheets and cables. Pseudopapillary and cystic areas are caused by poorly cohesive cells. Tumors are typically low-grade, with most patients staying tumor-free for years after resection.
Intraductal papillary mucinous neoplasm is a visible, mucin-producing tumor that develops within the pancreatic duct system.
• In men, the majority develop in the head of the pancreas. • Mucin-filled cysts communicate with the pancreatic duct system.
• Mucin-secreting columnar epithelial cells line the cysts, forming papillary projections. Epithelial cells can exhibit varying degrees of atypia. This lesion can give birth to invasive cancer.
Mucinous cystic neoplasms. • A variety of lesions, the majority of which are benign. • Symptoms of an abdominal mass are common among women. • Cystic tumors are well-defined and feature massive mucoid locules. The cysts don't communicate with the pancreatic ductal system. • The cysts are bordered by mucus-secreting columnar epithelial cells and have a dense, ovarian-like stroma beneath. The epithelial component can exhibit mild to severe atypia. Invasive carcinomas can develop within these lesions.
Serous cystic neoplasms. • Most benign lesions are found in women and cause abdominal mass symptoms. • The most frequent kind is serous microcystic adenoma, which causes a well-defined pancreatic mass with multiple tiny cysts and a central scar. The small cysts are bordered by cuboidal cells with a spherical nucleus and transparent cytoplasm, indicating glycogen buildup.
Small pseudopapillary neoplasm. • Pancreatic neoplasm with cystic change. • Commonly found in young women with abdominal mass symptoms. Tumors in the pancreas can form a solid mass with cysts and hemorrhage.
Histologically, the tumor is made up of homogeneous spherical cells that form sheets and cables. Pseudopapillary and cystic areas are caused by poorly cohesive cells. Tumors are typically low-grade, with most patients staying tumor-free for years after resection.
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