Malignant spindle cell tumors of the parotid gland are a diagnostic challenge. The clinical and histologic assessments were consistent with a primary sarcoma of the parotid gland. In this article, we present a case of 79-year female with huge right parotid swelling which came out to be an undifferentiated sarcoma on histological examination only. The huge size of the lesion, rarity and less number of reported cases on undifferentiated sarcoma prompted us to report the particular case. The major differential diagnostic considerations were malignant fibrous histiocytoma (MFH), fi brosarcoma, osteosarcoma, spindle cell carcinoma, carcinosarcoma and primary undifferentiated sarcoma of the parotid gland.

Unicystic ameloblastoma refers to those cystic lesions that show clinical, radiographic or gross features of a jaw cyst but on histological examination show a typical ameloblastomatous epithelium lining the cyst cavity, with or without luminal and/or mural tumor proliferation. Unicystic ameloblastoma is a less encountered variant of the ameloblastoma and believed to be less aggressive. As this tumor shows considerable similarities with dentigerous cysts, both clinically and radiographically the biologic behavior of this tumor group was reviewed. Moreover, recurrence of unicystic ameloblastoma may be long delayed and a long-term postoperative follow-up is essential for proper management of these patients. Here, we present a case of unicystic ameloblastoma in a 12-year-old female patient. How to cite this article Bakshi NS, Mukherji S, Chauhan Y. Unicystic Ameloblastoma presenting as Dentigerous Cyst. J Contemp Dent 2013;3(3):144-146.

The oral mucosal melanoma (OMM) comprises less than 1% of all malignant melanomas. Most mucosal melanomas occur in occult site, which together with lack of early and specific signs contribute to late and poor diagnosis. Because of their rare ness, the knowledge about their pathogenesis and risk factors is insufficient, and also there are not well-established protocols for staging and treatment of mucosal melanomas with lympha denopathy. Surgery is the mainstay of treatment. Radiotherapy and other adjunctive therapies can provide better local control in some locations, but did not show improvement in survival. In this article, we present a case of 52yearold female with OMM (excision performed elsewhere) presenting with large left upper cervical swelling after 2 years postexcision. We will review the literature that help us in taking decision in the management of OMMs in light of following patient.