Intrasellar symptomatic salivary gland rest.

Area of Science:

• Endocrinology
• Neurosurgery
• Pathology

Background:

• Ectopic salivary gland tissue in the sellar turcica is a rare incidental finding during autopsy.
• This condition is typically asymptomatic, with only two previous symptomatic cases reported in medical literature.
• Understanding the potential clinical manifestations of ectopic pituitary gland tissue is crucial for accurate diagnosis.

Observation:

• A 28-year-old woman presented with galactorrhea and hyperprolactinemia, indicating a hormonal imbalance.
• Magnetic resonance imaging (MRI) identified a small nodule in the posterior pituitary gland.
• The nodule displayed specific characteristics on T1- and T2-weighted MRI sequences and reduced enhancement post-contrast.

Findings:

• Sellar region imaging revealed a pituitary gland nodule consistent with ectopic tissue.
• Surgical exploration identified a cystic lesion within the pituitary gland.
• Pathological examination confirmed the presence of salivary gland rest within the pituitary gland.

Implications:

• This case expands the clinical spectrum of symptomatic ectopic salivary gland tissue in the sellar region.
• It highlights the importance of considering rare diagnoses in patients with unexplained hyperprolactinemia and pituitary lesions.
• Further research may elucidate the pathogenesis and long-term clinical significance of these rare pituitary findings.