منابع مشابه
Immature teratoma of the maxillary sinus: a rare pediatric tumor.
IMPORTANCE Noncongenital immature teratomas in the head and neck are extremely rare, and to our knowledge have not previously been reported in the maxillary sinus of a pediatric patient. OBSERVATIONS Teratomas are neoplasms that contain tissue from more than 1 embryonic cell layer that is foreign to the location where they arise and are most commonly found in the sacrococcygeal and gonadal re...
متن کاملMalignant Mucosal Melanoma of the Maxillary Sinus
Sinus mucosal malignant melanoma, is a rare type of melanoma with poor prognosis which is usually occurred in the adults. This is a rare case of a 33-year-old man presenting 2-week-long headache and nasal obstruction with the emphasis on the importance of Immunohistochemical staining to help the diagnosis.
متن کاملGastric immature teratoma.
Gastric teratoma GT is a rare neoplasm which accounts for less than 1% of all teratomas in children. Little more than 100 cases of GT are reported in the literature out of which, about a dozen cases are of immature variety. We present a case of immature gastric teratoma in a 7-month-old male baby.
متن کاملA Large Ameloblastic Fibro-odontoma of the Maxillary Sinus
Introduction: Ameloblastic fibro-odontoma is a rare, benign, asymptomatic tumor. The term ameloblastic fibro-odontoma was first used by Hooker in 1967 as a separate lesion from ameloblastic odontoma. Case Report: This case report describes an eleven years old female with large ameloblastic fibro-odontoma in the right maxillary sinus. Conclusion: There is a low potential for recurrence after...
متن کاملImmature Teratoma of Nasal Septum: A Case Report
Introduction: Teratomas are neoplastic tumors derived from totipotent germ cells containing a wide assortment of tissues originating from all three germ cell layers. Teratomas can be mature or immature depending on the presence of immature tissues; typically neuroepithelial tissue. Immature teratomas can be oncologically benign or malignant, and can be divided into three grades with increasingl...
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ژورنال
عنوان ژورنال: JAMA Otolaryngology–Head & Neck Surgery
سال: 2014
ISSN: 2168-6181
DOI: 10.1001/jamaoto.2014.1800