An unusual case of disseminated neuroendocrine tumor presenting with generalized lymphadenopathy

K S Karthik1, Hema Kini, Anand U Kini

  • 1Department of General Surgery, Kasturba Medical College, Mangalore, Manipal University, Manipal, Karnataka, India.

Insights

A 64-year-old man with enlarged lymph nodes was initially suspected of having tuberculosis or lymphoma. Further investigation revealed a rare case of disseminated neuroendocrine tumor from an unknown primary source.

Area of Science:

  • Oncology
  • Pathology

Background:

  • Generalized lymphadenopathy is a common clinical presentation.
  • Differential diagnoses often include infections like tuberculosis and hematological malignancies such as lymphoma.

Observation:

  • A 64-year-old male presented with enlarged lymph nodes in the neck and axillae.
  • Routine work-up in India considered tuberculosis and lymphoma.

Findings:

  • Fine-needle aspiration cytology (FNAC) results were unexpected.
  • Subsequent investigations confirmed disseminated neuroendocrine tumor of unknown primary origin.

Implications:

  • Highlights the importance of considering rare diagnoses in cases of generalized lymphadenopathy.
  • Underscores the diagnostic challenge posed by neuroendocrine tumors with occult primaries.