Journal of Thyroid Research / 2012 / Article / Tab 2

Clinical Study

Pattern and Risk Factors of Central Compartment Lymph Node Metastasis in Papillary Thyroid Cancer: A Prospective Study from an Endocrine Surgery Centre

Table 2

Histopathological features; 𝑛 = 4 7 (% age).

Thyroid

Mean tumor size (cm) Β± SD (range)3.57 Β± 2.42 (0.3–12)
Tumor staging
 (i) T14 (8.5)
 (ii) T219 (40.4)
 (iii) T311 (23.4)
 (iv) T413 (27.7)
Papillary microcarcinoma8 (17)
PTC subtypes
  (i) Classical variant (CV)35 (74.5)
  (ii) Follicular variant (FV)8 (17)
  (iii) Oncocytic variant (OV) [20]1 (2.1)
  (iv) Tall cell variant (TCV)3 (6.4)
Laterality
  (i) Right side29 (61.7)
  (ii) Left side18 (38.3)
Multicentricity18 (38.3)
Bilaterality9 (19.1)
Extrathyroidal extension13 (27.7)

Lymph nodes

Overall lymph nodes metastasis30 (63.8)
Overall central compartment lymph nodes metastasis (CCM)28 (59.6)
  (i) Bilateral CCM17 (60.72)
  (ii) Isolated ipsilateral CCM9 (32.14)
  (iii) Isolated contralateral CCM2 (7.14)
Overall lateral compartment lymph nodes metastasis (LLNM; 𝑛 = 1 9 )19 (100)
  (i) Ipsilateral LLNM15 (78.95)
  (ii) Bilateral LLNM3 (15.8)
  (iii) Contralateral LLNM1 (5.3)
Final pathological nodal staging (TNM-classification)
  (i) pN025 (53.2)
  (ii) pN1a3 (6.4)
  (iii) pN1b19 (40.4)
Skip lateral metastasis ( 𝑛 = 1 9 )2 (10.5)
Skip contralateral central lymph node metastasis ( 𝑛 = 4 7 )2 (4.3)

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