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Table 1 Demographic profiles of patients with T4a hypopharyngeal squamous cell carcinoma (n = 93)

From: Clinicopathological factors influencing the outcomes of surgical treatment in patients with T4a hypopharyngeal cancer

Parameter No of patients (%)
Age (years)
  ≤ 60 65 (69.9)
  > 60 28 (30.1)
Gender
 Male 86 (92.5)
 Female 7 (7.5)
Primary tumor site
 Pyriform sinus 71 (76.3)
 Posterior pharyngeal wall 14 (15.1)
 Postcricoid region 8 (8.6)
N classification
 N0 12 (12.9)
 N1 8 (8.6)
 N2a 2 (2.2)
 N2b 41 (44.1)
 N2c 25 (26.9)
 N3 5 (5.4)
Adjuvant therapy
 Radiation only 33 (35.5)
 Concurrent chemoradiation 39 (41.9)
 None 21 (22.6)
Margin involvement
 Yes 27 (29.0)
 No 66 (71.0)
Histologic differentiation
 Well differentiated 18 (19.4)
 Moderately differentiated 56 (60.2)
 Poorly differentiated 11 (11.8)
 Unknown 8 (8.6)
Lymphovascular invasion
 Yes 56 (60.2)
 No 30 (32.3)
 Unknown 7 (7.5)
Extracapsular spread
 Yes 46 (49.5)
 No 40 (43.0)
 Unknown 7 (7.5)