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"Indonesian Journal of Dentistry 2006; Edisi Khusus KPPIKG XIV:239-242Oral squamous cell carcinorna ( OSCC ) is the most common malignant tumor of the oral cavity, and its account for 80-90% of all malignancies in oral cavity. The aim of this study was to detemine the presenceof p53 mutations and to associate these mutations with the histopathological type of OSCC such as well differentiated and poorly differentiated. Analitycal observational comparative study by cross sectional design was used. Forty untreated well and poorly differentiated OSCC biopsy sample and normal tissue biopsy material taken from 16 normal patients were analyzed for the presence of mutation in the conserved region of the p53 gene especially in exon 5 by polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP). The results of this study showed that p53 gene mutations were detected in exon 5; 11/40 (27,5%) with heterozygous mutation 9/11 (81,8%). The incidence in exon 5 of p53 gene mutation was significantly accociated with well differentiated 2/20 (l0%) and poorly diferentiated 9/20 (45%) OSCC(P=0,013). This study concludes that 1) mutation in exon 5 of p53 gene occured frequently in OSCC; 2) exon 5 of the p53 gene could be one of the the specific targets for histopathological grade of OSCC; 3) mutation in exon 5 of p53 gene could be important prognostic factor in OSCC."

"This book aims to give a homogeneous approach to esophageal cancer treatment, based on the author’s lifetime experience in conjunction with exhaustive review of recent literature. In each chapter surgeons and oncologists will find appropriate tools for correct management of the diagnosis and therapy of this difficult disease. The book analyzes all the aspects of staging and treatment, such as modern diagnostic and staging techniques (MRI or PET-CT), endoscopic treatment of early cancer, new minimally invasive and open surgical techniques, and combined treatment. In addition, there are chapters dedicated to the postoperative course of these patients, as well as their quality of life, with indications for the correct follow-up and treatment of relapses."

"ABSTRACTPurpose: Endoscopic submucosal dissection (ESD) is widely used to treat esophageal cancer, but some patients require additional treatment due to the possibility of lymph node metastasis. The aim of this study was to elucidate the clinical outcomes of these additional treatments.Methods: The study included 59 patients who developed superficial esophageal squamous cell carcinoma after noncurative ESD treated between 2005 and 2016, of whom 28 underwent esophagectomy and 31 received chemoradiotherapy (CRT).Results: The median follow-up periods were 45 months in the esophagectomy group and 41 months in the CRT group. The overall survival did not differ significantly between the groups (P = 0.46). However, there were no recurrences in the esophagectomy group, and the disease-specific survival rate was significantly higher in this group (P = 0.042). Among the patients at high risk for recurrence due to massive tumor invasion (≥ SM2) with lymphovascular invasion (esophagectomy group, six patients; CRT group, ten patients), none in the esophagectomy group had recurrence, whereas four in the CRT group died of esophageal cancer (P = 0.031).Conclusion: The overall survival did not differ significantly between the groups. However, compared with CRT, esophagectomy provided more favorable disease control for patients with massive tumor invasion (≥ SM2) with lymphovascular invasion."

"Pendahuluan: Insidensi Infeksi HPV pada Karsinoma Sel Skuamosa Oral dan Hubungannya dengan Mutasi p53 dan c-myc: Penelitian Kasus Kontrol pada Rumah Sakit Muwardi. Rata-rata angka kejadian kanker rongga mulut dan pharyng di negara berkembang per tahun diperkirakan pada kisaran 25 kasus per 100.000 penduduk. Saatini patogenesis kanker telah diketahui berhubungan dengan virus Human papilloma (HPV). Catatan lain bahwa mutasi pada gena p53 dan c-myc ditemukan pada 50% dari seluruh kejadian kanker. Tujuan: Tujuan penelitian ini adalah untuk mengetahui kejadian pasien Kanker Sel Skuamous Rongga Mulut (KSSRM) dengan infeksi HPV tanpa mutasigena p53 dan c-myc. Bahan dan Cara: Jaringan biopsi frozen sections dari pasien Sel Skuamous Rongga Mulut Jinak (SSRMJ) dan Kanker Sel Skuamous Rongga Mulut (KSSRM) yang dikumpulkan dari Bagian Penyakit Gigi dan Mulut RSUD dr Muwardi Surakarta mulai Januari 2007 hingga Januari 2008. Amplifikasi gena L1-HPV untuk mengetahuikeberadaan stressor HPV. Amplifikasi gena-gena p53 dan c-myc, dilanjutkan analisis Single Strand Comformational Polymorphisme (SSCP) dan diikuti pengukuran menggunakan densitometer untuk melihat keberadaan mutasi. Data yang terkumpul dianalisa menggunakan Uji Chi Square. Hasil: Pasien SSRMJ teridentifikasi 23% terinfeksi HPV dan pasien KSSRM teridentifikasi 73% terinfeksi HPV. Seratus persen pasien SSRMJ yang terinfeksi HPV tercatat tanpa mutasi pada gena p53 dan c-myc, 81% pasien KSSRM yang terinfeksi HPV tercatat tanpa mutasi gena p53 dan 91 % pasien KSSRM yang terinfeksi HPV tercatat tanpa mutasi gena c-myc. Analisis uji Chi Square menunjukkan perbedaan yang signifikan antara pasien SSRMJ dan KSSRM pada infeksi HPV tanpa mutasi gena p53 dan c-myc. Kesimpulan: HPV merupakan faktor untuk kejadian KSSRM.

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Introduction: Annual incidence rates for oral and pharyngeal cancer are estimated at 25 cases per 100,000 in developing countries. Human papilloma virus (HPV) was implicated in pathogenesis of Cancer. The mutations of p53 and c-myc are found 50% in cancer. Objective: Aims of this research were to know the incidence of OSSC patient which realized HPV infection without p53 and c-myc gene mutation. Materials and Methods: Tissue biopsy frozen sections were taken from BOSC (Benign Oral Squamous Cell) and OSCC (Oral Squamous Cell Carcinoma) patients collected from Oral and Dental Departement of dr Muwardi Distric Hospital in Surakarta from January 2007 to January 2008. Toamplify L1-HPV gene for fixed the HPV stressor. To amplify p53 and c-myc genes, continued with SSCP (Single Strand Conformational Polymorphisme) analysis and followed with measurement using densitometer, to see mutation existence. The collected data were analyzed with Chi Square. Results: BOSC patient identified 23% with HPV infections and OSCC patient identified 73% with HPV infections. Hundred percent BOSC patient with HPV infection without mutation in p53 gene and c-myc gene, 81% OSCC patient with HPV infection without mutation in p53 gene and 91 % OSCC patient with HPV infection without mutation in c-myc gene. Chi Square analysis showed significant difference between BOSC and OSCC patients with HPV infection without mutation in p53 and c-myc gene. Conclusion: HPV is a factor for pathogenesis of OSCC."

"Latar belakang: Karsinoma nasofaring (KNF) merupakan penyakit genetik multifaktorial, bersifat endemik dan mempunyai perbedaan signifikan dalam distribusi geografi s. Selain faktor virus Epstein Barr (EBV), insiden KNF juga dipengaruhi oleh faktor genetik seperti polimorfi sme gen reseptor sel T lokus β (TCR-β). Penelitian ini bertujuan untuk mengetahui hubungan polimorfi sme gen TCR-β dengan suseptibilitas individu untuk berkembang menjadi KNF pada populasi Indonesia. Metode: Penelitian dilakukan dengan teknik PCR-RFLP menggunakan enzim restriksi Bgl II pada gen TCR-β. Analisis PCR-RFLP gen TCR-β digunakan untuk mendeterminasi alotip gen TCR-β pada penderita KNF dan kontrol dan pada kelompok etnis Cina dan pribumi dalam populasi Indonesia. Hasil: Hasil penelitian menunjukkan bahwa distribusi alotip gen TCR-β pada penderita KNF dan kontrol tidak berbeda bermakna (p > 0,05). Frekuensi alel A meningkat pada penderita KNF. Distribusi alotip gen TCR-β antara etnis Cina dan kelompok pribumi tidak memperlihatkan perbedaan bermakna (p> 0,05). Kesimpulan: Distribusi alel gen TCR-β antara kelompok KNF dengan kelompok kontrol tidak menunjukkan perbedaan. Distribusi alel gen TCR-β antara etnis Cina dan pribumi tidak menunjukkan perbedaan. Polimorfi sme gen TCR-β tidak berhubungan dengan KNF dan etnis pada populasi Indonesia.

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AbstractBackground: Nasopharyngeal carcinoma (NPC) is a multifactorial genetic disease, characteristically endemic and shows considerable differences in its geographical distribution. Besides infection with EBV, genetic factors such as polymorphisms of TCR-β gene contribute to the incidence of NPC. This study investigates the association of TCR-β gene polymorphisms with individual susceptibility to develop NPC in Indonesian ethnic groups. Methods: The study was carried out by the PCR-RFLP method using Bgl II restriction enzyme to digest TCR-β gene. The PCR-RFLP analysis of TCR-β gene was used to determine allotypes of TCR-β gene in NPC patients and control among ethnic Chinese and indigenous groups in the population of Indonesia. Results: The results indicate that the distribution of TCR-β gene allotypes between NPC patients and controls are not signifi cantly different (p > 0.05); however, the frequency of A allele tends to increase in NPC patients. The distribution of TCR-β gene allotypes between Chinese ethnic group was not signifi cantly different from indigenous groups (p > 0.05). Conclusion: The distribution of TCR-β gene allele between NPC group and control groups showed no difference. The distribution of TCR-β gene between ethnic Chinese and indigenous groups showed no difference. Polymorphisms of TCR-β gene are not associated with NPC and ethnic groups in Indonesian population. "

"Kanker paru memiliki mortalitas tinggi dan sering terdiagnosis pada stage lanjut. Kelainan morfologis sel trakeobronkial dan biomolekuler mendahului proses karsinogenesis. Bronkoskopi gelombang cahaya spektrum sempit (GCSS) dikembangkan untuk meningkatkan akurasi diagnostik. Tujuan penelitian ini adalah untuk mengetahui akurasi diagnostik bronkoskopi GCSS dalam mendeteksi kelainan morfologis sel trakeobronkial dan hubungannya dengan mutasi gen p53.Studi ini merupakan studi diagnostik eksperimental yang dilakukan pada subjek kanker paru yang menjalani prosedur bronkoskopi di RS Persahabatan periode Januari-November 2023. Prosedur bronkoskopi GCSS dan biopsi forseps bronkus dilakukan di lesi non-tumor, dilanjutkan dengan pemeriksaan histopatologi hematoksilin dan eosin (HE), serta pemeriksaan Polymerase Chain Reaction (PCR) sekuensing sanger mutasi p53 pada titik R175L, R248W, dan R273C. Analisis kesesuaian juga dilakukan.Sebanyak 105 subjek diikutsertakan dalam analisis penelitian, dengan dominasi laki-laki, perokok, jenis kanker adenokarsinoma dan stage lanjut. Kelainan morfologis sel trakeobronkial ditemukan pada 34 subjek (32,4%) berupa metaplasi, sel atipik dan sel tumor. Mutasi p53 wild type pada titik R175L, R248W, dan R273C ditemukan pada seluruh jaringan biopsi. Satu jaringan metaplasi dengan mutasi p53 Kodon 267 heterozigot CT dan satu jaringan hiperplasi dengan mutasi p53 Kodon 180 heterozigot GC. Pola vaskular berliku didapatkan sebagai kriteria diagnostik paling baik dibandingkan dengan pola vaskular lainnya dengan area under the curve (AUC) 78,4%; sensitivitas 79,41%; spesifisitas 77,46%; nilai prediktif positif 62,8% dan nilai prediktif negatif 88,7%. Kesesuaian antar pengamat dalam menilai pola vaskular GCSS cukup baik dengan nilai kappa 0,88 (standar eror 0,06; nilai p <0,01). Mukosa edematosa berhubungan dengan pola vaskular berliku pada bronkoskopi GCSS dengan OR 3,6 (IK95% 1,53-8,46; nilai p <0,01). Subjek dengan pola vaskular berliku [OR 21,89 (IK95% 6,50-73,71; nilai p<0,01)] dan subjek dengan IB ³ 600 [OR 5,39 (IK95% 1,62-17,71; nilai p 0,01)] berhubungan dengan kelainan morfologis sel trakeobronkial.

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Lung cancer has high mortality and is often diagnosed at an advanced stage. Additionally, morphological abnormalities of tracheobronchial cells precede the carcinogenesis process and are based on molecular abnormalities. Moreover, Narrow-Band Imaging Bronchoscopy (NBI) has been developed to improve diagnostic accuracy. The objective of this study is to determine the diagnostic accuracy of NBI bronchoscopy in detecting morphological abnormalities of tracheobronchial cells and their relationship with p53 gene mutations.

This study is an experimental diagnostic study conducted on lung cancer subjects undergoing bronchoscopy procedures at RS Persahabatan from January to November 2023. NBI bronchoscopy procedures and bronchial forceps biopsies were performed on non-tumor lesions, followed by haematoxylin and eosin (HE) histopathological examination, as well as Polymerase Chain Reaction (PCR) Sanger sequencing for p53 mutations at the R175L, R248W, and R273C points. Reliability analysis was also performed.

A total of 105 subjects were included in the study analysis, predominantly male, smokers, with adenocarcinoma type cancer and advanced stage. Tracheobronchial cell morphological abnormalities were found in 34 subjects (32.4%), in the form of metaplasia, atypical cells, and tumor cells. Wild type p53 mutations at the R175L, R248W, and R273C points were found in all biopsy tissues. One metaplastic tissue had a p53 Codon 267 CT heterozygous mutation and one hyperplastic tissue had a p53 Codon 180 GC heterozygous mutation. The tortuous vascular pattern was identified as the best diagnostic criteria compared to other patterns with an area under the curve (AUC) of 78.4%; sensitivity 79.41%; specificity 77.46%; positive predictive value 62.8% and negative predictive value 88.7%. Inter-observer agreement in assessing vascular patterns was good with a kappa value of 0.88 (standard error 0.06; p-value <0.01). Edematous mucosa was associated with a tortuous vascular pattern on NBI bronchoscopy with an OR of 3.6 (95% CI 1.53-8.46; p-value <0.01). Subjects with a tortuous vascular pattern (OR of 21.89; 95% CI 6.50-73.71; p-value <0.01) and subjects with IB ≥ 600 (OR of 5.39; 95% CI 1.62-17.71; p-value 0.01) were associated with tracheobronchial cell morphological abnormalities."

"ABSTRAKLatar belakang: Penentuan faktor risiko metastasis kelenjar getah bening dan prognosis pasien Karsinoma Sel Skuamosa (KSS) penis tidak sebanyak KSS pada organ lain. Penggunaan parameter patologik, ekpresi p53 dan Ki67 dapat digunakan sebagai variabel penentu prognosis maupun terapi KSS penis namun masih diperlukan data yang lebih banyak. Penelitian ini bertujuan untuk menjelaskan hubungan antara ekspresi p53 dan Ki67 terhadap parameter histopatologik yang mempengaruhi risiko metastasis.Bahan dan Cara: Penelitian ini merupakan studi potong lintang dengan melakukan pulasan imunohistokimia p53 (Novocastra DO-7) dan Ki67 (Biocare CRM 325) pada 25 sampel KSS penis.Hasil: Ekspresi p53 positif ditemukan pada 48% KSS penis dan ekspresi Ki67 tinggi ditemukan pada 52% kasus. Tidak temukan hubungan yang bermakna antara ekspresi p53 dan parameter-parameter histopatologik. Didapatkan hubungan bermakna antara ekspresi Ki67 terhadap derajat diferensiasi tumor dan adanya invasi uretra.Kesimpulan: Ekspresi p53 tidak dapat digunakan sebagai faktor prediktif risiko metastasis KSS penis. Ekspresi Ki67 secara sebagian berhubungan dengan faktor risiko metastasis KSS penis.

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ABSTRACTBackground: Determination of lymph node metastasis risk factors and prognosis of patients with Squamous Cell Carcinoma(SCC) of the penis is not as much as SCC in other organs. Pathological parameters, expression of p53 and Ki67 could be used as a determinants of prognosis and therapy in SCC of the penis but more data is still needed. This study aims to clarify the relationship between the expression of p53 and Ki67 to histopathological parameters that affect the risk of metastasis.Methode: This study was a cross-sectional study by using immunohistochemical staining of p53 (Novocastra DO-7) and Ki67 (Biocare CRM 325) in 25 samples of SCC of the penisResult: Expression of p53positive was found in 48% of SCC of the penis and higher expression of Ki67f was found in 52% of cases. No significant association between p53 expression and histopathologic parameters. Obtained significant correlation between the expression of Ki67 on the degree of tumor differentiation and invasion urethra.Conclusion: P53 expression can not be used as a predictive factor of risk metastatic in SCC of the penis. Ki67 expression is partially associated with risk factors for metastatic SCC of the penis."

"ABSTRAK Mucoceles are considered to be the most common oral lesion, with an approximate prevalence of around 2.4 cases per 1,000 people. The exact prevalence in children is not reported, but they are thought to occur more frequently in younger individuals when compared to adults. The age old treatment for mucocele involves surgical excision, which is associated with mental trauma and discomfort to the patient. Other treatment options that can be considered include cryosurgery, CO2 laser ablation, micro marsupialization, intralesional corticosteroid injection, marsupialization and electrocautery. Cryosurgery is the procedure where there is deliberate destruction of tissue by freezing, using liquid nitrogen. This treatment is well received by patients, as minimal or no local anesthesia is used, relative lack of discomfort, no bleeding and minimal to no scarring after healing. This paper discuses two cases of oral mucocele treated via surgical excision and cryosurgery."