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Table 2 Characteristics of patients with mild hyperprolactinemia

From: Diagnostic pitfalls of hyperprolactinemia: the importance of sequential pituitary imaging

Characteristic Non-functioning adenoma (PRL >90 ng/ml) Prolactinoma (PRL <200 ng/ml) P value
Number of patients   9 53  
Age, years old Range (median) 35-67 (39) 14-82 (34) 0.12
Tumor size Maximum Diameter (mean ± SD, mm) 22.0 ± 6.0 12.2 ± 6.8 0.01*
Serum prolactin concentration (mean ± SD, ng/ml) 141.3 ± 68.2 144.5 ± 31.9 0.84
  1. PRL = prolactin.
  2. *statistically significant.
  3. SD, standard deviation.