We present a case of intraparotid plexiform neurofibroma in a 7-year-old man. The lesion was determined as plexiform neuroma in histopathological findings, but final diagnosis was plexiform neurofibroma considering his familiy history of neurofibromatosis and café au lait spots on his body. Currently we are executing follow-up after removing the tumor with surgery. Plexiform neurofibroma can develope at any point along a nerve and spread out either just under the skin or deeper in the body. According to the literature, the most common site of plexiform neurofibroma is mouth and face in the head and neck region. Also, plexiform neurofibroma occurs at 8.8-year-old in neurofibromatosis typeⅠ patient with familial history. Because of interlacing with adjacent normal tissue and the invasive nature we have difficult resecting the mass completely. So when the tumor turns symptomatic or disfiguring leading to an aesthetic problem, surgery had better be undertaken.

We present a case of cellular angiofibroma arising from right neck in a 46-year-old woman. Surgical excision was performed and the patient was disease free till now. Cellular angiofibroma usually arised in the inguinoscrotal of vulvovaginal regions. Only 3 cases of cellular angiofibroma involving maxillofacial region have been reported in the english written literature. Cellular angiofibromas are rare benign tumor characterized by bland spindle shaped cells arranged in a stroma with wispy collagen and numerous vessels. Immunohistochemical stains of the tumor cells showed the positivity for CD34, PR, EMA, but negativity for neurofilament, desmin and actin. The tumor should be differentiated from aggressive angiomyxoma and angiomyofibroblastoma, angiofibroma because of its clinical and histological similarity. We report a rare case of benign cellular angiofibroma involving right neck and study other published articles.

Ameloblastic fibro-odontoma has been defined as a lesion similar to ameloblastic fibroma by WHO, as it shows inductive changes which forms enamel and dentin. Ameloblastic fibro-odontoma is a very rare mixed dentition tumor in children, and the symptom shows indolent edema in maxillary and mandibular molar area. The prevalence is two times higher in male than in female, and two times higher in maxilla than in mandible. Radiologically, it shows clear border and characteristics of both fibroma and odontoma histologically. This review reports a case that a 4-year old female visited in dental clinic of this school for edema as chief complaint in Feb, 2012. Emergency surgical curettage was performed right after initial diagnosis as odontoma, then confirmed diagnosis as Ameloblastic fibro- odontoma after biopsy. Currently, after 6 month, no sign of recurrence can be seen. Ameloblastic fibro-odontoma is very rare mixed dentition tumor. Moreover, as it is the case of female maxilla, this case is worth of publishing. Furthermore, accurate diagnosis of Ameloblastic fibro-odontoma is difficult. This review is published for accurate diagnosis through differential diagnosis of several important mixed dentition tumors.