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Related Experiment Videos

[Reversible blindness caused by an invasive prolactinoma].

B Schöfl-Siegert1, G Brabant, A von zur Mühlen

  • 1Abteilung Klinische Endokrinologie, Medizinische Hochschule Hannover. schoefl.christof@mh-hannover.de

Deutsche Medizinische Wochenschrift (1946)
|June 21, 2001
PubMed
Summary

A large skull base tumor causing sudden vision loss was diagnosed as an invasive prolactinoma. Dopamine agonist therapy rapidly shrunk the tumor and restored vision, making it the preferred treatment.

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Area of Science:

  • Neuro-oncology
  • Endocrinology
  • Ophthalmology

Background:

  • A 40-year-old male presented with acute blindness, severe headache, and nausea.
  • Imaging revealed a large skull base tumor causing increased intracranial pressure.

Observation:

  • Endocrine tests showed partial hypopituitarism and moderate hyperprolactinemia.
  • Initial biopsy suggested carcinoma, but final diagnosis was invasive prolactinoma.

Findings:

  • Dopamine agonist therapy normalized prolactin levels and improved visual disturbances.
  • Magnetic Resonance Tomography (MRT) demonstrated significant tumor shrinkage within 5 weeks.

Implications:

  • Invasive prolactinoma should be considered in the differential diagnosis of acute visual loss due to skull base tumors.

Related Experiment Videos

  • Dopamine agonist therapy is the primary treatment for prolactinoma, leading to rapid tumor reduction and symptom improvement.
  • Serum dilution is crucial to avoid hook-effect errors in prolactin assays during diagnosis.