Ectopic teeth in ovarian teratoma: a rare appearance.

Teratoma consists of tissues derived from all the three germ layers, and there may be presence of appendages as a representation of these germ layers as well. Teratomas of the ovary are known to occur in a fairly large number of women. These may be present clinically at a much later stage, permitting a limited treatment plan. Newer diagnostic techniques are always welcome in identifying these lesions. This case report discusses the case of a 40-year-old woman with a large teratoma in the right ovary and its diagnostic and surgical modalities.

Odontogenic myxoma.

Odontogenic myxoma is a rare intraosseous neoplasm, which is benign but locally aggressive. It rarely appears in any bone other than the jaws. It is considered to be derived from the mesenchymal portion of the tooth germ. Clinically, it is a slow-growing, expansile, painless, non-metastasizing, central tumor of jaws, chiefly the mandible. Here we report the case of a typical odontogenic myxoma in a 26-year-old female patient, which had acquired large dimensions and involved the entire left half of the mandible including the ramus, resulting in a gross facial deformity, within a span of one and a half years.

Non-infiltrating angiolipoma of the upper lip: A rare entity.

Angiolipoma is a variant of lipoma with a prominent vascular component. It is the most common tumor of the forearm followed by trunk and extremities of young individuals. It's occurrence in head and neck region is rare. In this report, we present clinical and histopathologic features of non-infiltrating angiolipoma occurring on the upper lip in a 9-year-old female. Toluidine blue stain is used to demonstrate increased mast cell density around blood vessels, speculating its role in vasculogenesis.

Melanotic neuroectodermal tumor of infancy: Report of a case associated with high urinary excretion of Vanilmandelic acid.

Melanotic neuroectodermal tumor of infancy is a rare congenital neoplasm involving the head and neck region in young patients. A case of melanotic neuroectodermal tumor of infancy is presented. This tumor occurred in right maxillary alveolar ridge in a 4-month-old infant. The present case showed an increased urinary level of vanilmandelic acid, confirming that the tumor is originated from neural crest. Clinical assessment, histologic diagnosis, and laboratory findings supported the diagnosis.