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Pathology - Benign hepatic lesions
Hemangioma • The most prevalent neoplasm of the liver. • Macroscopically, well-defined red neoplasms with a spongy texture because to the many vascular structures present inside them.
• Microscopically, it consists of many dilated blood arteries bordered by non-remarkable endothelial cells. • Benign lesions that are typically asymptomatic and necessitate no treatment.
Hepatic adenoma
• Uncommon neoplasm predominantly observed in young women of reproductive age. • Believed to be linked to the utilization of oral contraceptives.
• Macroscopically, single lesions frequently exceed 10 cm in size, exhibiting a softer consistency and a lighter hue compared to the surrounding liver tissue. • Hepatocytes are microscopically organized in plates that are 1 to 3 cells thick. Significant arteries are frequently observed within the lesion; however, portal tracts are lacking. Surgical excision is frequently conducted to avert the potentially lethal consequence of rupture and hemoperitoneum.
Focal nodular hyperplasia
• A benign non-neoplastic lesion typically observed in young women of reproductive age. • Believed to signify a limited region of liver hyperplasia resulting from alterations in blood flow linked to a pre-existing vascular abnormality.
A macroscopically distinct nodular region with a brighter hue than the surrounding liver tissue. Most lesions exhibit a distinctive center scar. •
Microscopic examination reveals nodules of hepatocytes interspersed with fibrous stroma harboring bile ductules. Large, thick-walled jars can serve as a valuable diagnostic indicator. • Harmless and not linked to a risk of hemorrhage.
Biliary hamartoma
• Believed to be a ductal plate deformity. Macroscopically, it presents as a tiny (<5mm) irregular grey lesion of the liver, perhaps multifocal. it consists microscopically tiny ductules situated inside a dense fibrous stroma. concentrated bile may be present within ductules. duct adenoma not constitute genuine tumor, but rather represents reactive proliferation ductular structures.
• Macroscopically, small, firm white lesions, typically larger than biliary hamartomas, often located subcapsularly. • Microscopically, small, uniform ductules that are more densely arranged than those in a biliary hamartoma. Bile is absent in the ductules.
Hemangioma • The most prevalent neoplasm of the liver. • Macroscopically, well-defined red neoplasms with a spongy texture because to the many vascular structures present inside them.
• Microscopically, it consists of many dilated blood arteries bordered by non-remarkable endothelial cells. • Benign lesions that are typically asymptomatic and necessitate no treatment.
Hepatic adenoma
• Uncommon neoplasm predominantly observed in young women of reproductive age. • Believed to be linked to the utilization of oral contraceptives.
• Macroscopically, single lesions frequently exceed 10 cm in size, exhibiting a softer consistency and a lighter hue compared to the surrounding liver tissue. • Hepatocytes are microscopically organized in plates that are 1 to 3 cells thick. Significant arteries are frequently observed within the lesion; however, portal tracts are lacking. Surgical excision is frequently conducted to avert the potentially lethal consequence of rupture and hemoperitoneum.
Focal nodular hyperplasia
• A benign non-neoplastic lesion typically observed in young women of reproductive age. • Believed to signify a limited region of liver hyperplasia resulting from alterations in blood flow linked to a pre-existing vascular abnormality.
A macroscopically distinct nodular region with a brighter hue than the surrounding liver tissue. Most lesions exhibit a distinctive center scar. •
Microscopic examination reveals nodules of hepatocytes interspersed with fibrous stroma harboring bile ductules. Large, thick-walled jars can serve as a valuable diagnostic indicator. • Harmless and not linked to a risk of hemorrhage.
Biliary hamartoma
• Believed to be a ductal plate deformity. Macroscopically, it presents as a tiny (<5mm) irregular grey lesion of the liver, perhaps multifocal. it consists microscopically tiny ductules situated inside a dense fibrous stroma. concentrated bile may be present within ductules. duct adenoma not constitute genuine tumor, but rather represents reactive proliferation ductular structures.
• Macroscopically, small, firm white lesions, typically larger than biliary hamartomas, often located subcapsularly. • Microscopically, small, uniform ductules that are more densely arranged than those in a biliary hamartoma. Bile is absent in the ductules.
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