Comparison of 99mTc-Tilmanocept and Hybrid Indocyanine Green-99mTc-Albumin Nanocolloid Drainage in a Patient With Melanoma in the Scalp

Clin Nucl Med. 2020 Dec;45(12):977-979. doi: 10.1097/RLU.0000000000003309.

Abstract

We present the planar lymphoscintigraphies and SPECT/CT images of a 60-year-old man diagnosed as having melanoma (Breslow 1.8 mm) in left parietal scalp, close to head midline. Sentinel lymph node biopsy using Tc-tilmanocept was performed, but the surgery was canceled. Two weeks later, sentinel lymph node biopsy was repeated, but using the hybrid radiotracer indocyanine green-Tc-albumin nanocolloid. The lymphatic drainage in left laterocervical region was similar with these 2 radiotracers, but on the right side, more sentinel lymph nodes were detected with nanocolloid compared with tilmanocept.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Dextrans*
  • Female
  • Humans
  • Indocyanine Green / chemistry*
  • Male
  • Mannans*
  • Melanoma / diagnostic imaging*
  • Melanoma / pathology
  • Middle Aged
  • Scalp / diagnostic imaging
  • Scalp / pathology*
  • Sentinel Lymph Node Biopsy
  • Single Photon Emission Computed Tomography Computed Tomography*
  • Technetium Tc 99m Aggregated Albumin / chemistry*
  • Technetium Tc 99m Pentetate / analogs & derivatives*

Substances

  • Dextrans
  • Mannans
  • Technetium Tc 99m Aggregated Albumin
  • technetium-diethylenetriaminepentaacetic acid-mannosyl-dextran
  • Indocyanine Green
  • Technetium Tc 99m Pentetate