peripheral calcifying cystic odontogenic tumor (pccot) is a rare odontogenic lesion, which represents about 1% of jaw cysts. here we report clinicopathologic, radiographic and ct scan images of a new case of recurrent large pccot located in mandibular gingiva in a 77-year-old male with history of a nodular mass in the same area, which had been completely excised 3 years ago. in reviewing the li...

background: an effective method for management of large and bulky malignant tumors. this treatment modality is also known as specially fractionated radiation therapy (sfrt). in this treatment technique a grid block converted the open radiation field into a series of pencil beams. dosimetric characteristics of an external beam grid radiation field have been investigated using experimental and mo...

ameloblastomas are slow growing, locally invasive, benign odontogenic tumors of an epithelial origin, accounting for approximately 1% of all oral tumors. a 40-year-old man presented with a chief complaint of a swelling over the left side of his face of 4 years’ duration. on examination, gross facial asymmetry was detected, and a well-defined swelling was noted intraorally involving the left max...

purpose : retinoblastoma (rb) is a relatively common childhood tumor. in this report we discuss the clinical characteristics, treatments and outcome of the treated rb patients from a referral center in iran in order to understand this medical problem in our society. methods : a retrospective study was carried out on rb cases treated in farabi eye hospital since 1979 to 2007. the variables analy...

background: in cancers of prostate, breast, oropharynx, lung, hypopharynx and skin, human tissue kallikreins has been demonstrated as a main role in these problems. there are many research works in which some human tissue kallikreins are expressed in salivary glands. in the present study, the main goal was to determine expression of human tissue kallikreins 4, 8, 10, 11 and 13 in pleomorphic ad...

background: phyllodes tumor (pt) of the breast in hispanic patients is more frequently reported with large tumors and with more borderline/malignant subtypes compared with other populations. the objective of this study was to describe characteristics of patients with pt and to identify differences among subtypes in a mexican population.  methods: a retrospective study was conducted on patients ...

background and purpose: cancer and cerebrovascular accidents (cva) are two most common causes of mortality and morbidity in the elderly. patients with brain tumor can be highly affected by postsurgical stroke. cva may be the first manifestation in these patients . therefore, we aimed to assess the epidemiological factors affecting cva after brain surgery. methods: in this cross-sectional study ...