Mucosa-associated lymphoid tissue (MALT) was first described as low-grade lymphoma associated with the stomach mucosa. Although the stomach and ocular adnexa are the most common localizations of MALT lymphoma, it has also been described in many other organs, including the head and neck, lungs, thyroid, breast, bladder, saliva glands, conjunctiva, and tear glands. MALT lymphoma originating from the dura is rare. The case is here presented of an 83-year-old female operated on with an initial diagnosis of acute subdural hematoma. In the histopathological examination, there was seen to be lymphoplasmacytic infiltration of the dura and a lymphomeningothelial lesion. Immunohistochemically, low-grade MALT lymphoma showing B-cell phenotype was considered. This is the first reported case of lymphomeningothelial lesion in MALT lymphoma originating from the dura.

Background:Pleomorphic adenoma (PA) is the most common benign tumor of the salivary glands. Histologically it is characterized by presenting epithelial as well as mesenchymal elements and may contain various metaplastic changes. Case presentation: In this article, a case of PA with extensive mucinous metaplasia and histologically very similar to mucoepidermoid carcinoma (MEC) is presented. Discussion and Conclusions:Pleomorphic adenoma with extensive mucinous and squamous differentiation can potentially be misdiagnosed as MEC. Immunohistochemistry was not effective in the differential diagnosis and the diagnosis was confirmed by the absence of MAML2 translocation.

Objective: The aim of this study is using the autologous reverse inlay jugular vein graft as a substitute for defective urethral plate and the incorporation of the graft to the urethral plate. Cripple hypospadias are the patients who have a history of previous multiple unsuccessful hypospadias surgery and still having anatomical and functional complications. Insufficient local or support tissue for the repair of defective urethral plate is always a problem. Material and Methods: In the study fourteen male 8-10 months old which is weighting four kg, New Zealand type rabbit are divided into two equal groups. Juguler vein graft (1st group) and buccal mucosal graft (2nd group) harvested and transferred to defective area in the urethral plate as a free flap. Results: In the histopatologic examination, epithelization, fibrosis and inflammation degrees were evaluated between the groups and in-groups. In the histopatological examination of the 1st group, uroepithelization is complete or nearly complete, fibrotic activity is (+) and the inflammation was found minimal. In the second group after 21st day, the uroepithelization on the graft is nearly thirty percent, fibrotic activity is (++) and the inflammation is also found minimal. Conclusion: From the results of the study, in the treatment of defective urethra in cripple hypospadias cases, reverse free juguler vein graft can be used as an alternative for buccal mucosa graft as a substitution material which has been used for a long time.

Introduction: Oral neoplasms are the second most common oral lesions after reactive proliferative lesions. The aim of this study is to determine the distribution of the oral neoplasms by gender and age, and briefly discussed the clinical manifestations, diagnosis, and treatments of these lesions. Materials and Methods: To collect the study material, a pathological retrospective archive analysis has been performed and 61 oral neoplasm cases were determined in a total of 423 samples. 61 biopsies and clinical data of patients were studied and classified based on their histopathologic diagnosis, age, gender, and frequency. Results: In our study, a total of 61 neoplastic lesions were examined, and the mean age was 45.5 ±18.2. The most common lesion in the oral neoplastic lesion is leukoplakia (n=15, 24.59%). This is followed by squamous cell carcinoma (SCC) (n =13, 21.31%) and squamous papilloma (n =11, 18.03%). The rest are gingival granular cell tumor, hemangioma, odontoma, lipoma, mucosal nevus, myxoma, ameloblastoma, leukemia, melanoma, lymphoma, and osteosarcoma. Conclusion: This study provided important data on the frequency and histological distribution of oral benign and malign neoplasms. This study also highlights the diagnosis, and management of these oral neoplasms for the dentists.

No abstract