The aim of this study was to describe the patterns of tumor regression with respect to follow-up duration after chemoradiotherapy in patients with nasopharyngeal carcinoma. A total of 27 patients with nasopharyngeal carcinoma were included and received definitive concurrent chemoradiotherapy. Patterns of primary tumor regression and development of locoregional recurrences were evaluated by imag...

The efficacy of neoadjuvant chemotherapy and adjuvant chemotherapy on stage IIb nasopharyngeal carcinoma(NPC) remains unclear. Conventional two-dimensional radiotherapy combined with concurrent chemotherapy can improve the overall survival, progression-free survival, recurrence-free survival, and distant metastasis-free survival of patients with stage IIb NPC. Intensity-modulated radiotherapy w...

Nasopharyngeal masses in the pediatric population are quite rare, and the majority of these are benign. In adolescent boys, there should be a high index of suspicion for juvenile nasopharyngeal angiofibromas. When malignant, the most common lesions encountered are rhabdomyosarcomas, carcinomas, and lymphomas. We report a single case from a tertiary care institution of an adolescent male with an...

We present the case of a 47-year-old man with a history of Epstein-Barr-virus-positive nasopharyngeal carcino- ma who developed a metastasis to the palatine tonsil. To the best of our knowledge, this is the first reported case of an intratonsillar metastasis of a nasopharyngeal carcinoma. The aim of this report is to emphasize the importance of vigilant surveillance in patients with nasopharyng...

OBJECTIVE To investigate the expression profile and the clinical significance of CDK3 in the tissues of nasopharyngeal carcinoma. METHOD Immunohistochemistry was utilized to detect the expression of CDK3 in 94 cases of NPC and 40 cases of nasopharyngeal inflammation. RESULT CDK3 was highly expressed in NPC cell lines. Immunohistochemistry showed that CDK3 was mostly expressed in the cytopla...

Nicotine, the major component in cigarette smoke, can promote tumor growth and angiogenesis, but the precise mechanisms involved remain largely unknown. Here, we investigated the mechanism of action of nicotine in human nasopharyngeal carcinoma (NPC) cells. Nicotine significantly promoted cell proliferation in a dose and time-dependent manner in human NPC cells. The mechanism studies showed tha...

Although nasopharyngeal carcinoma (NPC) is a rare cancer in the United States, it is a leading cause of death in other countries. Dr Titcomb reviews several facts about NPC that can be helpful to underwriters as they encounter this tumor in applicants who reside in, or who are a native of, an area of high incidence.

TO THE EDITOR—We read with interest the recent article by Winokur et al, in which they developed a safe experimental human model of nontypeable Haemophilus influenzae (NTHi) nasopharyngeal colonization [1]. In their study, both nasopharyngeal wash specimens and nasopharyngeal swab specimens were collected to culture NTHi. Colonization was detected in nasopharyngeal wash samples from 9 subjects ...

In this prospective study we compared the use of pernasal flocked swab samples with the use of nasopharyngeal aspirate (NPA) samples for the detection of respiratory viruses from 455 children less than 5 years of age. Overall, the sensitivity and the specificity of the pernasal flocked swab samples were 98.5% and 100%, respectively. The excellent sensitivity of the flocked swab samples in combi...

Few occupational risk factors have been identified for nasopharyngeal cancer,' although reported associations with poor ventilation,2 smoke, dust, and fumes,3 and exposure to formaldehyde' have suggested that inhalation of carcinogens may play an aetiological part. To provide further leads to occupational risks for this uncommon tumour, we examined on a national basis the association between em...