Keywords:
Performed at one institution, Observational, Prospective, Cancer, Diagnostic procedure, MR, Lymph nodes, Head and neck, Head and Neck
Authors:
M. PENUGANCHIPROLU, R. Bansal , B. AGGARWAL, U. Mukherjee, H. Chaturvedi; NEW DELHI/IN
DOI:
10.26044/ecr2020/C-04285
Results
In the present study tongue was the most frequently involved site followed by buccal mucosa and the gingivo-buccal sulcus. Males were the most effected (78.95%) and the mean age was 57 years and the most commonly involved age group was 51-60 (38.6%) followed by the age group of 61-70 (33.33%). Average depth of invasion calculated on MRI was 20.4 mm and by histopathology was 20.0 mm so the depth of invasion by MRI measures 0.4mm more than the histopathological depth of invasion. Pearson’s correlation coefficient was 0.956 (P value is <0.0001).
MRI showed slightly greater thickness when compared to histopathological thickness.
In the present study 32 out of 57 patients were histopathology positive for lymph node metastasis. Level-I was the most involved group of metastasis. The lymph nodal metastasis was divided according to proposed tumour thickness staging classifications (stage I – tumour depth ≤ 3 mm, stage II - > 3 mm but ≤ 9 mm, stage III - > 9 mm. 53 patients out of 57 patients showed cervical lymph nodes. 5 patients showed a depth of ≤ 3 mm out of which one patient (20%) showed metastatic cervical lymphadenopathy on histopathology. 5 patients showed tumour depth between 3-9mm out of which 2 patients (40%) showed metastatic cervical lymphadenopathy. 43 patients showed tumour depth > 9mm out of which 29 patients (67.44%) showed metastatic cervical lymphadenopathy.
|
Cervical Lymph nodes |
Total |
P value |
Benign |
Malignant |
MRI Depth of Invasion |
1)<=3 mm |
4 (80.00%) |
1 (20.00%) |
5 (100.00%) |
0.012 |
2) 3-9mm |
3 (60.00%) |
2 (40.00%) |
5 (100.00%) |
3) >9 mm |
14 (32.56%) |
29 (67.44%) |
43 (100.00%) |
Total |
21 (39.62%) |
32 (60.38%) |
53 (100.00%) |
Depth of invasion |
Sample size |
Mean ± Standard dev |
Median |
Min-Max |
Inter quartile Range |
P value |
Histopathological, mm |
57 |
20 ± 11.8 |
18 |
2-50 |
11.00 - 28.25 |
<0.0001 |
MRI, mm |
57 |
20.4±11.8 |
17 |
2-51 |
12.00 - 28.00 |
Fig. 8