TY - THES A1 - Schnaidt, Ulrike T1 - Das Plattenepithelkarzinom der Mundhöhle. Eine retrospektive Analyse der Therapieergebnisse und Überlebensraten bei neoadjuvanter Behandlung des Würzburger Patientenkollektivs aus den Jahren 1993-2007 T1 - The oropharyngeal squamous cell carcinoma. A retrospective study to evaluate the outcome and survival rates of patients after preoperative combined radiochemotherapy in Wuerzburg from 1993 to 2007 N2 - In einem Zeitraum zwischen 1993 und 2007 wurden an der Klinik für Mund-, Kiefer-, und Gesichtschirurgie der Universität Würzburg insgesamt 140 Patienten mit einem primären Plattenepithelkarzinom der Oropharynxregion in eine retrospektive Studie einbezogen. Grundvoraussetzung war, dass alle Patienten eine neoadjuvante, präoperative Radiochemotherapie mit einer Gesamtstrahlendosis von 40 Gy über 4 Wochen erhielten. Parallel zu den ersten 5 Bestrahlungstagen wurden den Patienten 60 mg/m² Körperoberfläche Carboplatin verabreicht. Ziel der Studie war, die Ergebnisse und Überlebensraten dieser multimodalen Therapie zu erforschen. Das Durchschnittsalter des Gesamtpatientengutes lag bei 55,6 Jahren, das Verhältnis zwischen Männern und Frauen betrug 4,4:1. Mit 37,9% war die häufigste Tumorlokalisation der Mundboden. In 83,3% der Fälle war das Plattenepithelkarzinom verhornend und zu 72,9% mäßig differenziert (G2). T4 Tumoren traten mit 52,1% am häufigsten auf. Klinisch wurden 62,1% pathologische Lymphknoten diagnostiziert. Nach der neoadjuvanten Radiochemotherapie wurde bei allen Patienten eine Operation durchgeführt. Pathohistologisch konnten 93,6% R0-Resektionen nachgewiesen werden. Im weiteren Krankheitsverlauf erlitten 36,4% der Patienten ein Rezidiv. Die 5-Jahresüberlebensrate der tumorassoziiert Verstorbenen betrug 64,1%. Einen signifikanten Einfluss auf das Überleben zeigten das pT-Stadium (p< 0,01), das pN-Stadium (p< 0,01), das Grading (p= 0,031), die R0-Resektion (p< 0,01) sowie das Auftreten der Rezidive (p< 0,01). Beim Überlebensvergleich mit aktuellen Studien konnte diese signifikante Prognoseverbesserung bestätigt werden. N2 - Between 1993 and 2007 a total number of 140 patients with primary oropharyngeal squamous cell carcinoma (SCC) were included in a retrospective study at the Department of Oral and Maxillofacial Surgery, University Wuerzburg. All patients underwent preoperative combined radiochemotherapy with a target volume dose of 40 Gy over a period of 4 weeks. Simultaneously Carboplatin (60 mg/m²) was given on days 1 to 5 during radiotherapy. The aim of our study was to evaluate the outcome and survival rates for this type of treatment. The mean age of our patients was 55.6 years, the ratio of male and female patients averages 4.4:1. With 37.9% the floor of the mouth was the most frequent location. 83.3% of the tumors were keratinized, while 72.9% had a G2 grading. T4 lesions occurred in 52.1% of the cases. In 62.1% there were found pathological lymph nodes after clinical diagnostics. Preoperative radiochemotherapy was followed by surgery. In 93.6% no tumor cells could be detected microscopically (R0). 36.4% of all patients suffered from recurrence of SCC. The 5 year survival rate was 64.1%. The survival was influenced significantly by pT (p< 0.01), pN (p< 0.01), grading (p= 0.031), R0 resections (p< 0.01) and recurrence of the carcinoma (p< 0.01). In accordance with comparable recent studies significant improvements in prognosis and survival of the SCC as a result of preoperative radiochemotherapy could be confirmed. KW - Plattenepithelcarcinom KW - Mundhöhle KW - Vorbestrahlung KW - Chemotherapie KW - Überleben KW - TNM-System KW - UICC KW - Residualtumor KW - Rezidiv KW - Grading KW - Neck-Dissection KW - oropharyngeal squamous cell carcinoma KW - neoadjuvant KW - UICC KW - radiochemotherapy KW - grading Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-28006 ER - TY - JOUR A1 - Cerezo-Echevarria, Argiñe A1 - Kehl, Alexandra A1 - Beitzinger, Christoph A1 - Müller, Tobias A1 - Klopfleisch, Robert A1 - Aupperle-Lellbach, Heike T1 - Evaluating the histologic grade of digital squamous cell carcinomas in dogs and copy number variation of KIT Ligand — a correlation study JF - Veterinary Sciences N2 - Dark-haired dogs are predisposed to the development of digital squamous cell carcinoma (DSCC). This may potentially suggest an underlying genetic predisposition not yet completely elucidated. Some authors have suggested a potential correlation between the number of copies KIT Ligand (KITLG) and the predisposition of dogs to DSCC, containing a higher number of copies in those affected by the neoplasm. In this study, the aim was to evaluate a potential correlation between the number of copies of the KITLG and the histological grade of malignancy in dogs with DSCC. For this, 72 paraffin-embedded DSCCs with paired whole blood samples of 70 different dogs were included and grouped according to their haircoat color as follow: Group 0/unknown haircoat color (n = 11); Group 1.a/black non-Schnauzers (n = 15); group 1.b/black Schnauzers (n = 33); group 1.c/black and tan dogs (n = 7); group 2/tan animals (n = 4). The DSCCs were histologically graded. Additionally, KITLG Copy Number Variation (CNV) was determined by ddPCR. A significant correlation was observed between KITLG copy number and the histological grade and score value. This finding may suggest a possible factor for the development of canine DSCC, thus potentially having an impact on personalized veterinary oncological strategies and breeding programs. KW - canine KW - cancer KW - toe KW - grading KW - haircoat KW - color KW - genetics KW - gene Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-304824 SN - 2306-7381 VL - 10 IS - 2 ER - TY - JOUR A1 - Conrad, David A1 - Kehl, Alexandra A1 - Müller, Tobias A1 - Klopfleisch, Robert A1 - Aupperle-Lellbach, Heike T1 - Immunohistochemical and molecular genetic analysis of canine digital mast cell tumours JF - Animals N2 - Grading, immunohistochemistry and c-kit mutation status are criteria for assessing the prognosis and therapeutic options of canine cutaneous mast cell tumours (MCTs). As a subset, canine digital MCTs have rarely been explored in this context. Therefore, in this retrospective study, 68 paraffin-embedded canine digital MCTs were analysed, and histological grading was assessed according to Patnaik and Kiupel. The immunohistochemical markers KIT and Ki67 were used, as well as polymerase chain reaction (PCR) for mutational screening in c-kit exons 8, 9, 11 and 14. Patnaik grading resulted in 22.1% grade I, 67.6% grade II and 10.3% grade III tumours. Some 86.8% of the digital MCTs were Kiupel low-grade. Aberrant KIT staining patterns II and III were found in 58.8%, and a count of more than 23 Ki67-positive cells in 52.3% of the cases. Both parameters were significantly associated with an internal tandem duplication (ITD) in c-kit exon 11 (12.7%). French Bulldogs, which tend to form well-differentiated cutaneous MCTs, had a higher proportion of digital high-grade MCTs and ITD in c-kit exon 11 compared with mongrels. Due to its retrospective nature, this study did not allow for an analysis of survival data. Nevertheless, it may contribute to the targeted characterisation of digital MCTs. KW - dog KW - digit KW - toe KW - CD117 KW - Ki67 KW - KIT KW - grading KW - PCR KW - sequencing KW - c-kit Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-319199 SN - 2076-2615 VL - 13 IS - 10 ER -