Jeong et al reported a scoring system for predicting lymph node metastasis in a patient with a papillary thyroid carcinoma. The authors are from Yonsei University in Seoul, Korea.
Patient selection: papillary thyroid carcinoma
Parameters:
(1) gender
(2) age in years
(3) size of thyroid tumor in cm
(4) lymph node size in mm on CT scan
(5) lymph node density in Hounsfield units (HU)
Parameter
Finding
Points
gender
male
1
female
0
X =
= (0.902 * (points for gender)) - (0.035 * (age)) + (1.02 * (tumor size)) + (0.177 * (lymph nodes size)) + (0.032 * (lymph node density)) – 5.333
Yonsei Estimated Value = probability of lymph node metastasis =
= 1 / (1 + EXP((-1) * X))
If there are multiple lymph nodes present then the score needs to be run on each one.
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Specialty: Hematology Oncology, Surgery, general, Endocrinology
