INTRODUCTION Oral Lichen Planus (OLP) and Oral Lichenoid Lesions (OLLs) are clinically and histopathologically similar lesions but with different etiologies and treatment plan, thus differentiating these two has been the center of many researches. Studies in different populations have been performed on clinical and histopathologic features of OLP and OLLs. Thus aim of the present study was to e...

BACKGROUND To determine the cut-off values of the preoperative risk of malignancy index (RMI) used in differentiating benign or malignant adnexal masses and to determine their significance in differential diagnosis by comparison of different systems. MATERIALS AND METHODS 191 operated women were assessed retrospectively. RMI of 1, 2, 3 and 4; cut-off values for an effective benign or malignan...

Background and Aim: Mucoepidermoid carcinoma (MEC) is the most common malignant neoplasm of the salivary glands with complex histopathologic features and clinical behavior. The aim of this study was to evaluate the clinicopathologic significance of p63, Maspin and matrix metalloproteinase (MMP)-2 expression in MEC. Materials and Methods: In this retrospective study, immunohistochemical stain...

purpose : to introduce a novel classification system for the extent of choroid invasion and to analyze the incidence of histopathologic risk factors (hrfs) in the patients with retinoblastoma in china methods : the clinical data of 104 enucleated eyes diagnosed with retinoblastoma were retrospectively reviewed, and the pathological re-examination of the enucleated eyes was conducted. results : ...

introduction: different oral lesions have clinical characteristics which in some cases are similar. therefore, in these cases histopathological examination for correct diagnosis is necessary. the aim of this study was to evaluate the compatibility rate of clinical and histopathological diagnosis of oral lesions in zahedan school of dentistry. methods: in this retrospective study, determination ...

background spitz nevus is an infrequent acquired melanocytic nevus. there is still a challenge for dermatopathologists in distinguishing spitz nevus from malignant melanoma particularly in adults since there is no immunohistochemistry or molecular markers which differentiate spitz nevus from melanoma. objectives the aim of this study is to make clear what clinico-histopathological features of s...

PURPOSE It is well established that muscle-invasive urothelial carcinoma (UC) has a marked propensity for divergent differentiation, a fact that has significant diagnostic, prognostic, and therapeutic implications. This work is designed to assess the impact of different histopathologic variants of bladder cancer on morbidity and mortality in patients undergoing radical cystectomy (RC) as compar...

sinonasal undifferentiated carcinoma is an extremely rare malignancy of the paranasal sinuses and nasal cavity. it is of unknown etiology, and occurs more commonly in the elderly men, with a routinely shown aggressive behavior and poor prognosis for survival. radiographically, it looks like severe osteomyelitis. histopathologic study is essential to confirm diagnosis, and the undifferentiated h...

Syringoma is a benign tumor arising from intra-epidermal ducts of eccrine sweat glands. It usually presents as small translucent papules on eyelids and upper cheeks. The case, which is presented, is a rare from of syringoma that occurred in a linear fashion on the trunk. Dermatologists should be aware of such form of syringoma to differentiate it from other similar lesions. This 23 year-o...

PURPOSE To evaluate the diagnostic value of gadolinium-enhanced dynamic magnetic resonance (MR) imaging of salivary gland tumors and correlate the MR imaging and histopathologic findings. MATERIALS AND METHODS Thirty-three salivary gland tumors in 29 patients were examined preoperatively at gadolinium-enhanced dynamic MR imaging. There were 22 benign and 11 malignant tumors. Dynamic contrast ...