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Multinodal Cervical Angiomyomatous Hamartoma.

Georgia Mackay1, James Johnston2, Sameer Mallick3

  • 1Department of Health Science, The University of Auckland Faculty of Medical and Health Sciences, Auckland, New Zealand.

International Journal of Surgical Pathology
|December 21, 2023
PubMed
Summary

This case study reports a rare instance of angiomyomatous hamartoma (AMH) affecting multiple neck lymph nodes. Early recognition of this benign lesion is crucial for patient management and surgical planning.

Keywords:
angiomyomatous hamartomabenign neck masscervical lymphadenopathylymph node

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Area of Science:

  • Pathology
  • Radiology
  • Oncology

Background:

  • Angiomyomatous hamartoma (AMH) is a rare, benign lymph node lesion.
  • Typically found in single inguinal lymph nodes, AMH presentation in multiple cervical nodes is exceptionally rare.

Purpose of the Study:

  • To report a unique case of AMH involving multiple lymph nodes in the neck.
  • To describe the magnetic resonance imaging (MRI) characteristics of cervical AMH.
  • To highlight the diagnostic criteria and clinical significance of AMH.

Main Methods:

  • Case report of a 53-year-old female with a neck lump.
  • Diagnostic workup included MRI with contrast and fat saturation.
  • Histopathological examination for definitive diagnosis.

Main Results:

  • MRI revealed a mass with intermediate T1 enhancement, high T2 signal, and high post-gadolinium enhancement with fat saturation.
  • Histology confirmed AMH, characterized by nodal vascular proliferation, adipose tissue, and HMB45 negative staining.
  • The lesion involved multiple cervical lymph nodes, a presentation not previously documented.

Conclusions:

  • This is the first reported case of angiomyomatous hamartoma involving multiple lymph nodes in the neck.
  • Specific MRI findings can aid in the early recognition of AMH.
  • Distinguishing AMH from other vascular lesions is critical for appropriate clinical management and surgical intervention.