Oligosarcoma Arising from Oligodendroglioma-A case report

A Case Report of Oligodendroglioma in Sheep in Iran

Oligodendroglioma arising in a sacrococcygeal immature teratoma.

Tumors of neuroepithelial origin are extremely rare in teratoma and tend to be derived from glial or primitive neuroectodermal cells. We describe a case of 2- month-old baby girl with an oligodendroglioma arising in an immature teratoma of the sacrococcygeal region. Histologically, the tumor was identical in appearance to low grade oligodendroglioma within the adult brain. Because immature tera...

Squamous cell carcinoma arising from chronic hypertrophic Lichen Planus: A case report

Association of lichen planus and cutaneous malignancies is rare. Reports of neoplastic changes are mostly related to buccal chronic erosive lichen planus. We report herein a 29-year-old man who developed squamous cell carcinoma on previous lesions of chronic hypertrophic lichen planus of lower legs. Careful follow up of patients with chronic lichen planus and biopsy sampling of uncommon lesions...

Cerebral High‐grade Oligodendroglioma with Sarcomatous Transdifferentiation (“Oligosarcoma”) in a Boxer Dog

A 9-year-old female spayed boxer was referred to the Veterinary Teaching Hospital of the University of Bern for a history of chronic neck pain and neurologic deficits. One month before presentation, the dog had been treated with carprofen (2 mg/kg once daily) and ordered restriction of exercise. Clinical signs improved transiently but, 1 week before presentation, the dog relapsed despite contin...

Oligodendroglioma Arising in Mature Cystic Teratoma

Background. Development of neuroepithelial tumors from mature cystic teratoma is very rare. We present a case of oligodendroglioma developing inside mature cystic teratoma. Case. Eighteen-years-old female, right adnexal mass with solid and cystic areas was detected. Sections showed all three germ layers. Also, a tumoral lesion was observed in a glial fibrillary matrix. Tumor was composed of mon...