Sentinel Lymph Node Detection in Early-Stage Oral Squamous Cell Carcinoma Using Magnetic Resonance Lymphography: A Pilot Study.

To assess the efficacy of magnetic resonance (MR) lymphography with gadobutrol contrast for sentinel lymph node (SLN) mapping in early-stage oral squamous cell carcinoma (OSCC). This pilot study compared the identification of SLNs by MR lymphography using a gadolinium-based contrast agent (gadobutrol) to conventional [Tc]Tc-nanocolloid lymphoscintigraphy (including single-photon emission computed tomography/computed tomography (SPECT/CT)) in 10 early-stage OSCC patients undergoing SLN biopsy. The patients initially underwent conventional lymphoscintigraphy following the peritumoral administration of indocyanine green [Tc]Tc-nanocolloid (120 megabecquerel; ~0.

Evaluation of the 10 %-rule in sentinel lymph node biopsy for clinically node-negative oral squamous cell carcinoma.

Background: Sentinel lymph node biopsy (SLNB) has proven to reliably stage the clinically negative neck in early-stage oral squamous cell carcinoma (OSCC). The 10%-rule, used to define sentinel lymph nodes (SLN) intraoperatively, states that an SLN is defined by gamma counts that are at least 10% of the hottest harvested lymph node (LN). However, this intraoperative rule has not yet been adequately evaluated for early-stage OSCC.