Undifferentiated Nasopharyngeal Carcinoma with Oral Manifestation: A Case Report

Nazofaringealni karcinom (NPC) rijetka je maligna bolest u većem dijelu svijeta, pa se zato često pogrešno dijagnosticira. Ta se vrsta raka teško pronađe među karcinomima glave i vrata zbog predilekcijskog mjesta, malignih karakteristika rasta, posebnih teškoća u otkrivanju i određivanju stupnja proširenosti te visoke stope neuspjeha u liječenju, iako je osjetljiv na radioterapiju. O toj bolesti malo se zna i obično na godinu oboli jedna osoba u populaciji od 100 tisuća. Uobičajen je u južnoj Kini i sjevernoj Africi, gdje se njegova etiologija povezuje s prehrambenim navikama. Kako bismo bolje razumjeli etiološku patogenezu i mogli prepoznati klinička obilježja te postaviti ranu dijagnozu i prognozu NPC-a, izvještavamo o rijetkom slučaju nazofaringealnog karcinoma u srednjoj Indiji. Pacijentica je bila u dobi od 19 godina i došla je na liječenje zbog tkivne mase u sklopu vrata intraoralno uključene u meko nepce.Nasopharyngeal carcinoma (NPC) is a rare malignancy in most parts of the world and is one of the most confusing, commonly misdiagnosed, and poorly understood diseases. It is unusual among all the head and neck cancers due to its marked geographical predilection, highly malignant tumor growth characteristics, special difficulties in detection and staging and a high rate of treatment failure despite of its radiosensitivity. This carcinoma is rare in most parts of the world with reported incidence of around 1 case per 100,000 population per year. Nasopharyngeal carcinoma is common in Southern China and North Africa, where the etiology is related to dietary habits but it is rare in other parts of the world. Therefore, for better understanding of etiopathogenesis, clinical pathological features, early diagnosis and prognosis of NPC, we report a rare case of a nasopharyngeal carcinoma in Central India, of a 19 year old female patient who presented with a mass in her neck and intraoral involvement of the soft palate

Ki67 Labelling Index predicts clinical outcome and survival in oral squamous cell carcinoma

Objective: To investigate the Ki 67 expression and its correlation with clinicopathological features and 3 years as well as 5 years survival rate in oral squamous cell carcinoma (OSCC). Methodology: Total 217cases of OSCC primarily treated with surgery with or without radiation were included. All patients were followed up for 3 years and 150 were followed up of 5 years for disease free survival. The immunohistochemistry was carried out on neutral buffered formalin fixed paraffin embedded tissue to evaluate the expression of Ki67. Results: The Ki67 labeling index (LI) was significantly higher with respect to adverse clinicopathological parameters such as histopathological grading (p<0.001), clinical TNM staging (p<0.001) and nodal metastasis (p<0.001). The OSCC patients survived for less than 3 and 5 years were showed significantly higher Ki67 LI as compared to diseases free survived more than 3 and 5 years(p<0.001). The three years survival rate of OSCC patient significantly higher with low Ki67 LI (≤45) 96.2%, followed by moderate Ki67 LI (46 to 60) 60.7% and high Ki67 LI (≥61) 37.7% (p<0.001). The five years survival rate of OSCC patient statistically significantly higher with low Ki67 LI (≤45)93.3%, followed by moderate Ki67 LI (46 to 60) 46.8% and Ki67 LI (≥61) 23.3% (p<0.001). Conclusion: The measurement of cell proliferative activity by using Ki67 antigen expression in individual OSCC might provide unique, predictive information on clinical outcome, prognosis and deciding treatment modalities in OSCC