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Pituitary Abscess with Unusual Clinical Course
Milica Medić Stojanoska1,2, Duško Kozić1,3, Mladen Bjelan3
1University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia
Acta Clinica Croatica
|November 10, 2017
Summary
This study details a rare case of a pituitary abscess that evolved over three years, initially responding to antibiotics but later mimicking a pituitary tumor. The chronic inflammation presented unusual fibrotic changes, highlighting diagnostic challenges.
Area of Science:
- Endocrinology
- Neuroradiology
- Pathology
Background:
- Pituitary abscesses are rare but can cause significant endocrine dysfunction and neurological symptoms.
- Early diagnosis and treatment are crucial to prevent long-term complications.
Observation:
- A 59-year-old man presented with symptoms of anterior pituitary dysfunction, central diabetes insipidus, and elevated inflammatory markers.
- Magnetic resonance imaging (MRI) revealed an acute pituitary pyogenic abscess with restricted diffusion.
- Recurrent abscesses were observed over 17 months, initially responding to conservative antibiotic treatment.
Findings:
- Three years post-initial presentation, MRI showed a sellar lesion consistent with a macroadenoma.
- Histological examination revealed chronic inflammation with fibrotic changes and granulation tissue, mimicking a tumor.
- This represents an unusual chronic evolution of a pituitary abscess, distinct from typical presentations.
Implications:
- The chronic inflammatory changes following pituitary abscess can mimic pituitary tumors on imaging, posing diagnostic challenges.
- This case underscores the importance of considering atypical presentations and long-term follow-up in pituitary abscess management.
- Understanding this chronic inflammatory pattern is vital for accurate diagnosis and appropriate treatment strategies in similar rare cases.
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