Page 46 - Portuguese Journal - SPORL - Vol 61. Nº2
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beyond their bony confines, being diagnosed       excluded basal cell carcinoma, squamous cell
          in later stages. In addition, the complex         carcinoma (SCC) and melanoma of the nasal
          anatomy of the sinonasal region and proximity     pyramid, because they are generally managed
          of critical structures such as the orbit,         in the dermatology department .
                                                                                            3
          brain, or cranial nerves, further complicates
          management  of  these  patients  and  leads  to   Statistical analysis
          frequent local relapses and eventually death .    Statistical analysis was performed with SPSS
                                                     6,7
          Comparison of results between different           24.0 for windows (SPSS Inc., Chicago, IL,
          institutions is limited due to the rarity of      USA). For overall survival (OS), the follow-up
          these tumors, the presence of many different      time was defined as the time between initial
          histologic subtypes and the advanced stage        presentation at this institution for the tumor
          at the diagnosis .                                of interest and the last appointment or death.
                         8
          The purpose of this study was to characterize     For disease-free survival (DFS),  the follow-up
          the   demography,     risk  factors,   clinical   time  was  defined  as  the  time  between  the
          presentation, histologic types, management,       conclusion of treatment for the primary tumor
          and survival of patients with malignant tumors    until the date of the first recurrence, death, or
          of the nose and paranasal sinus treated at a      last contact.
          tertiary hospital center in Portugal.             Quantitative variables were expressed as
                                                            mean ± standard deviations or as median
          Materials and Methods                             ±  interquartile  range  for  data  not  normally
          The  study was conducted at  Otolaryngology       distributed.   Qualitative   variables   were
          department of the Centro Hospital de Lisboa       expressed as absolute values and percentages.
          Ocidental, a Portuguese tertiary center.          Kolmogorov-Smirnov      and    Shapiro   Wilk
          The clinical records of patients with malignant   normative tests were used in order to access
          tumors  of  the  nose  and  paranasal  sinuses    distribution pattern in quantitative variables.
          were retrospectively reviewed through the         Student’s t test, A-nova one way and
          Information   Systems    and    Technologies      respective non-parametric tests, χ2 and proper
          Service (SSTI) of the Centro Hospitalar de        adjustments were used to relate evaluated
          Lisboa Ocidental. All patients with these         variables  with primary outcomes (death and
          malignancies, from January 2012 to December       recurrence). Kaplan – Meyer curves were used
          2021, were included.                              to determine 5-year OS and DFS and qualitative
          The    following    data    was     collected:    variables  were  compared  regarding  survival.
          demographics (age, gender, occupation),           A  p value  < 0.05  was  considered  statistically
          habits (smoking, alcohol), clinical presentation,   significant.
          location, staging (according to the 8  edition of
                                             th
          American Joint Committee on Cancer (AJCC)         Results
          on epithelial tumors of the nose and paranasal    From January 2012 to December 2021, 19
          sinuses and mucosal melanoma), histology          patients were included in our study (table 1).
          (based on the 4  edition of World Health          The  patients were  predominantly  males (11
                           th
          Organization (WHO) classification of tumors),     patients, 57.9%), with a mean age at diagnosis
          treatment, residual disease, recurrent disease,   of 66.7 ± 9.8 years (range between 51 and 89
          five-year overall survival (OS) and disease-free   years). Ten patients (52.6%) were smokers and
          survival (DFS) 9, 10 .                            6 (31.6%) had alcoholic habits. Four patients
          We excluded nasopharyngeal tumors because         (21.1%) had occupational risk factors (2 wood
          they  have a different  etiology,  originating    workers, 1 working in textile industry and 1
          from  epithelial  and  b-cell  interactions  of  the   working with chemical compounds) and 2
          nasopharynx,  and  the  primary  treatment        patients (10.5%) had history of previous tumors.
          in most cases is not surgical. We have also       The  most  common  presenting  symptoms



     188  Portuguese Journal of Otorhinolaryngology - Head and Neck Surgery
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