Pediatric Mesenchymal Hamartoma of Liver: A Case Report with Histomorphological Differential Diagnosis and Review of Literature.

Mesenchymal hamartoma of liver (MHL) is a benign liver tumour that occurs mainly in children, especially those under 2 years old. The pathogenesis of this tumor is still unknown. It is believed that MHL is derived from the Ito cells and either a developmental malformation of primitive hepatic mesenchyme; result of toxic or ischemic insult; or a true neoplasm.

Cystic Ovarian Mucinous Carcinoma With Carcinosarcomatous Mural Nodules: An Uncommon Entity.

Mural nodules in ovarian mucinous cystic tumors are uncommon, with only 80 cases reported over the last 30 yr. The literature describes only 5 cases of carcinosarcomatous mural nodules with mucinous ovarian neoplasm. We compared and summarized the literature related to mural nodules in mucinous ovarian tumors to elaborate on the clinical and histomorphologic features.