oral lichen planus (olp) is classified as a potential malignant disorder, and epidermal growth factor (egf) may play a key role in cancer development. the aim of this study was to compare serum and saliva egf among patients with olp and oral squamous cell carcinoma (oscc). a cross-sectional study was performed on 27 patients with olp (10 reticular and 17 atrophic-erosive forms), 27 patients wit...

clinical and histopathological features of basal cell carcinoma (bcc) may differ according to the type of carcinogen involved. bcc arising from radiotherapy treatment has high incidence and its clinical and histopathological features may be different from bccs caused by other carcinogens. the aim of our study was to investigate any possible association between specific histopathological or clin...

purpose : to describe a case of bilateral squamous cell carcinoma in right nasal and left temporal conjunctiva, simulating bilateral pterygium case report : a reddish fibrovascular pterygium-like lesion was observed in the nasal side of bulbar conjunctiva on the right eye and temporal conjunctiva of the left eye. medical examination not revealed any coexistent malignancy elsewhere excisional bi...

purpose : to assess the results of brachytherapy in patients with recurrent or incomplete excised conjunctival squamous cell carcinoma (scc) and malignant melanoma. methods : three patients underwent brachytherapy of one eye and one patient underwent brachytherapy of both eyes with ruthenium-106 (ru-106) plaques, all of them had a history of incomplete resection or recurrence of the tumor after...

background and objective: oral cancer accounts for less than 3% of all cancers. despite recent improvement in diagnostic and treatment methods, the overall survival of the disease is unfavorable. several studies have been performed to assess factors influencing lymph node metastasis and prognosis. the aim of this study was to evaluate some clinical and pathological factors influencing lymph nod...

lichen planus (lp) is a chronic inflammatory disease of probable immune-based etiology. the pathogenesis of lp is unclear, but apoptotic changes in epidermal (epithelial) cells have been reported. destruction of the basal cell layer is observed and many changes in cell proliferation, cell repair and cell death occur in the injured mucosal epithelium. the aim of this study was to evaluate and co...

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a rare case of squamous cell carcinoma ex pleomorphic adenoma in maxillary sinus is presented. the patient is a 50-year-old woman presenting with a slow-progressive swelling in left side of her face that she has noticed 2 years earlier. the lesion was not painful and caused asymmetry and mild exophthalmos. microscopic examination revealed that the tumor was composed of two components partly of ...

Background: The most frequently mutated tumor suppressor gene found in human cancer is p53. In a normal situation, p53 is activated upon the induction of DNA damage to either arrest the cell cycle or to induce apoptosis. However, when mutated, p53 is no longer able to properly accomplish these functions. The aim of this study was to investigate the expression of p53 gene in cases of skin cancer...

OBJECTIVE It is recognized that diagnostic doses of (131)I larger than 3 mCi will cause some cell injury to the tissue in which it concentrates and reduce subsequent uptake of (131)I administered therapeutically. Iodine-123 has been suggested as an alternate radiopharmaceutical to perform whole-body scans since its primary emissions are photons with minimal particulate radiation and it does not...