At necropsy of a five-year-old sheep, a pear shaped, lobular yellow-brownish mass measuring about 12 ×15 × 20 cm was found to involve the right hepatic lobe. Microscopic examination revealed two trabecularand solid patterns of neoplastic hepatocytes. In solid pattern, there were numerous tumoral giant cells thatcontain one or more large hyperchromatic bizarre-shaped nuclei scattered among clust...

PURPOSE/METHODS To report a rare case of a tumor in a conjunctival location, a giant cell collagenoma. Tissue was stained with hematoxylin-eosin, periodic acid-Schiff, and Masson's trichromic stain and studied by immunohistochemistry. RESULTS/CONCLUSION The clinical and histopathologic features of conjunctival giant cell collagenoma are similar to characteristics of the same tumor occurring i...

Pseudoangiomatous stromal hyperplasia (PASH) is a benign lesion of the breast. Mammography and ultrasonography usually reveal a well circumscribed lesion with benign characteristics. In this report a series of 36 patients is described in terms of imaging, histopathologic findings, therapy and followup. Also an overview of the literature is provided. No standard excision is necessary for PASH pr...

Mixed tumors in the prostate gland have been described; they are primarily originate in the gland or are the product of metastatic compromise. Mixed primary epithelial carcinomas of the prostate are very rare; here we report the case of a 72-years-old man with histopathologic findings of a primary prostate mixed carcinoma, showing characteristics of acinar, ductal and neuroendocrine adenocarcin...