Related Experiment Video
Updated: Jul 6, 2026
07:45
"Sun's Seven-Step Technique" for Endoscopic En-Bloc Resection of Thyroid Cancer via the Chest-Breast Approach
Published on: November 28, 2025
[Lymph node dissection in papillary and follicular thyroid cancer]
C Vorländer1, R H Lienenlüke, R A Wahl
1Chirurgische Klinik, Bürgerhospital Frankfurt am Main e.V., Nibelungenallee 37-41, 60318, Frankfurt am Main, Deutschland. c.vorlaender@buergerhospital-ffm.de
Summary
Papillary thyroid cancer (PTC) often involves lymph node metastasis, even in smaller tumors, necessitating extended dissection. Follicular thyroid cancer (FTC) rarely shows lymph node involvement, suggesting limited surgery may suffice for small tumors.
Area of Science:
- Endocrinology
- Surgical Oncology
- Pathology
Context:
- Optimal surgical management for papillary (PTC) and follicular (FTC) thyroid cancer remains debated, particularly concerning lymph node dissection.
- Current German guidelines recommend uniform surgical extent for both PTC and FTC.
- This study analyzes surgical management strategies based on a large cohort of thyroid malignancy patients.
Purpose:
- To investigate differences in lymph node metastasis between PTC and FTC.
- To evaluate the necessity of lymph node dissection based on tumor type and size.
- To inform surgical guidelines for differentiated thyroid cancers.
Summary:
- Papillary thyroid cancer (PTC) showed significantly higher rates of lymph node metastasis (33.2%) compared to follicular thyroid cancer (FTC) (5.2%), with metastasis occurring in PTC tumors ≤20 mm.
- FTC demonstrated lymph node metastasis exclusively in tumors larger than 25 mm.
- The findings suggest distinct management approaches are warranted for PTC and FTC regarding lymph node dissection.
Impact:
- Recommends differentiated surgical strategies for PTC and FTC based on lymph node metastasis patterns.
- Suggests more extensive lymph node dissection for PTC, even in tumors ≤20 mm.
- Proposes that thyroidectomy without prophylactic lymph node dissection may be adequate for small FTC cases.
Related Concept Videos
01:23Detailed Structure and Function of Lymph Nodes
Lymph nodes are bean-shaped structures that cluster along the lymphatic vessels in the inguinal, axillary, and cervical regions. Each node is divided into compartments by a capsule that extends trabeculae inward.
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
01:23The Thyroid Gland
The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...