When a cystic mass is detected on the floor of oral cavity, we must consider dermoid cysts for differential diagnosis. Surgery is the only treatment. If possible, intraoral approach should be preferred because of its perfect cosmetic results.

Objective Pilomatrixoma (calcifying epithelioma of Malherbe) is a benign soft tissue tumour arising from dermis or subcutaneous tissue which should be considered in differential diagnosis of preauricular lesions especially when skin fixation is present. Case Report Twenty-three year old male referred to our clinic with complaint of left preauricular swelling over 18 months which enlarged and became painful in the last 2 months. Because the lesion showed signs of infection, surgery was planned after medical therapy was completed. FNAB suggest pleomorphic adenoma as preliminary diagnosis. US or MRI showed no specific feature. Treatment and Prognosis Total excision, superficial parotidectomy with facial nerve sparing was performed after regression of infectious signs. Postoperatively no recurrence was detected. Conclusion Pilomatrixomas are benign tumours but have diagnostic difficulties according to clinical and cytologic findings. This rare lesion should be kept in mind to avoid misdiagnosis as malign parotid tumours, particularly in the presence of skin change.

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Objective: Head and neck cancers account for 17.6% of all malignant neoplasms. Data on the incidence of head and neck cancers and histological subtypes in turkey are limited. This study aimed to provide an overview of statistics for head and neck cancers. Material and Method:This retrospective and descriptive study included 1973 cases of in-situ carcinomas, malignant and borderline neoplasia from the head and neck region in a period of 5 years, diagnosed at Dr.Lütfi Kırdar Kartal Education and Research Hospital's Department of Pathology. Demographic data of patients and data from histopathological report were recorded. The topography of all tumours was coded according to the International Classification of Diseases for Oncology, 2nd and 3rd edition and histological and behavioral codes were given according to ICD-O-3. Data was entered and analyzed using Microsoft Excel™, version 2010.Results: Male and female ratio was 1.03 for head and neck cancers. The most common sites for males were described as the ratio in head and neck cancers and all malignant tumours as follows: the skin (non-melanoma) (48.4%-8.2%), the larynx (12.6%-2.3%), the thyroid (11.1%-1.2%), the lips (7.8%-1.3%), and the nasopharynx (3.1%-0.5%). The most common sites for females were as follows: the thyroid (45.3%-8.3%), the skin (non-melanoma) (39.6%-7.3%), the lips (3.6%-0.6%), the nasopharynx (2.2%-0.4%) and the eye (1.7%-0.3%). The male: female ratio was 25.2 for larynx cancers. The most common histological types and rates for males and females were also given. Conclusion:This descriptive epidemiological pathology-based cancer incidence study has relative value for describing head and neck cancer incidences in the İstanbul region and shown that pathology report-based descriptive epidemiological studies are still valuable for determination of the regional distribution of cancer incidence out of the active cancer registration regions.Key Words: Head and neck cancers, Epidemiology, Histology, turkey ÖZ Amaç: Baş boyun tümörleri tüm malign neoplazmların %17,6'sını oluşturmaktadır. türkiye' deki baş boyun kanserleri insidansları ve histolojik alt tiplerine ait bilgiler sınırlıdır. Bu çalışma baş boyun kanserleri istatistiklerine genel bakışı amaçlamaktadır. Gereç ve Yöntem:Retrospektif ve deskriptif olan çalışma, Dr. Lütfi Kırdar Kartal Eğitim ve Araştırma Hastanesi Patoloji Kliniği'nde 5 yıllık zaman diliminde tanı alan, baş boyun bölgesine ait 1973 in-situ karsinom, malign ve borderline neoplazi olgusunu içermektedir. Hastalara ait nüfus bilgileri ve histopatoloji raporlarındaki bilgiler kaydedildi. tüm tümörlere ait topoğrafi kodlaması uluslararası Hastalıkların sınıflandırılması-Onkoloji 2. ve 3. baskılara göre, histoloji ve davranış kodlaması 3. baskıya göre yapılmıştır. Veri kayıtları ve analizi Microsoft Excel™, 2010 versiyonu ile yapılmıştır. Bulgular: Erkek ve kadın oranı 1,03' dür. Erkeklerde en sık görülen lokalizasyonların, baş boyun tümörleri içinde ve tüm tümörler içinde dağılımı şu şekildedir; deri (melanom dışı) (%48,4-%8,2...

Small intestinal stricture forming in the late phase following nonpenetrating abdominal trauma is rare cause of ileus. It has often been suggested that it is result of localized feeding deficiency on the intestinal wall related to minor trauma in the mesentery. Laparoscopy has been increasingly used for diagnosis and treatment. Diagnosis should be supported by pathological analyses in case of intestinal stenosis related to blunt abdominal traumas.