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Table 2 Qualitative imaging findings and quantitative measurements with NHL and SCC of maxillary sinus

From: Differentiation of extranodal non-Hodgkins lymphoma from squamous cell carcinoma of the maxillary sinus: a multimodality imaging approach

  NHL SCC p value
Qualitative Imaging Findings on CT (n = 12) (n = 29)  
 Predominant growth pattern
  Permeative 6 (50)a 3 (10)  
  Destructive 4 (33) 24 (83)aa  
  Expansile 2 (17) 2 (7)  
 Remaining sinus wall within the tumor 11 (92)a 10 (34) 0.001
 Intratumoral necrosis 2 (17) 25 (86)aa < 0.001
 Cervical lymphadenopathy 4 (33) 4 (14) 0.158
 Tumor extension
  Nasal cavity 9 (75) 22 (76) 0.622
  Orbit 6 (50) 19 (66) 0.281
  Subcutaneous tissue 9 (75) 17 (59) 0.266
  Retroantral fat pad 10 (83) 24 (83) 0.672
  Pterygoid process 2 (17) 10 (34) 0.226
  Perineural spread 1 (8) 6 (21) 0.323
  Intracranial 1 (8) 3 (10) 0.668
Quantitative Measurements on MRI (n = 4) (n = 17)  
 T1–weighted images 0.89 ± 0.09 0.96 ± 0.18 0.457
 T2–weighted images 1.10 ± 0.21 1.07 ± 0.25 0.813
 Diffusion-weighted images 1.64 ± 0.68 1.13 ± 0.31 0.227
 ADC (×10−3 mm2/s) 0.61 ± 0.09aaa 0.95 ± 0.12 < 0.001
Quantitative Measurements on PET/CT (n = 7) (n = 15)  
 SUVmax 20.8 ± 7.4 17.4 ± 5.4 0.517
  1. Note.-- NHL = non-Hodgkin lymphoma, SCC = squamous cell carcinoma. In qualitative imaging findings, data are numbers of patients, and numbers in parentheses are frequencies expressed as percentages. In quantitative measurements, deta are signal intensity ratio, ADC value, and SUVmax, with the mean ± 1 standard deviation
  2. aThe frequency of NHL was significantly greater than that of SCC (p < 0.01)
  3. aaThe frequency of SCC was significantly greater than that of NHL (p < 0.01)
  4. aaaThe value of NHL was significantly lower than that of SCC (p < 0.01)