TL;DR: It is clear that lymph nodes that bear intervening tissues from the floor of the mouth should be removed to improve loco-regional control and lymphographic tracing methods, which are currently implied for sentinel lymph node biopsies, may improve the detection of lingual lymph nodes.
Abstract: Lingual lymph nodes are an inconstant group of in-transit nodes, which are located on the route of lymph drainage from the tongue mucosa to the regional nodes in neck levels I and II There is growing academic data on the metastatic spread of oral cancer, particularly regarding the spreading of oral tongue squamous cell carcinoma to lingual nodes These nodes are not currently included in diagnostic and treatment protocols for oral tongue cancer Combined information on surgical anatomy, clinical observations, means of detection, and prognostic value is presented Anatomically obtained incidence of lingual nodes ranges from 86% to 302% Incidence of lingual lymph node metastasis ranges from 13% to 171% It is clear that lymph nodes that bear intervening tissues from the floor of the mouth should be removed to improve loco-regional control Extended resection volume, which is required for the surgical treatment of lingual node metastasis, cannot be implied to every tongue cancer patient As these lesions significantly influence prognosis, special efforts of their detection must be made Reasonably, every tongue cancer patient must be investigated for the existence of lingual lymph node metastasis Lymphographic tracing methods, which are currently implied for sentinel lymph node biopsies, may improve the detection of lingual lymph nodes
TL;DR: An early-stage floor of the mouth (FOM) cancer case with metastasis to the sublingual lymph node raises the question of routine FOM dissection and further anatomic and pathologic studies addressing the rate and pattern of sublingUAL lymph node metastasis are warranted.
Abstract: Metastasis to the sublingual lymph nodes is very rare in oral cavity cancers. We present an early-stage floor of the mouth (FOM) cancer case with metastasis to the sublingual lymph node. Even though the rate of metastatic sublingual lymph nodes is low, the uncommon presence of sublingual lymph node metastasis in an early-stage FOM cancer case raises the question of routine FOM dissection. Further anatomic and pathologic studies addressing the rate and pattern of sublingual lymph node metastasis are warranted.
TL;DR: The authors suggest that more attention should be paid to possible sublingual lymph node metastasis for T1/T2 SCC of the ventral tongue with deeply endophytic infiltration.