Paper Information

Journal:   PARS JOURNAL OF MEDICAL SCIENCES (JAHROM MEDICAL JOURNAL)   SUMMER 2015 , Volume 13 , Number 2; Page(s) 27 To 32.
 
Paper: 

THE MEAN HEIGHT AND ANTEROPOSTERIOR DIAMETER AND SHAPE OF A NORMAL PITUITARY GLAND IN A SAMPLE POPULATION AT THE AGE GROUP OF 15-40

 
 
Author(s):  SABA MOHAMMAD, EBRAHIMI HOSSEINALI, AHMADIPOUR HABIBEH, KHODADOUST MOHAMMAD*
 
* DEPT OF RADIOLOGY, SCHOOL OF MEDICINE, KERMAN UNIVERSITY OF MEDICAL SCIENCE, KERMAN, IRAN
 
Abstract: 

Introduction: The pituitary gland is an endocrine gland varying in size by gender and age group and based on the diseases affecting the individual. Knowing the normal size of a pituitary gland is therefore crucial in the diagnosis and prognosis of diseases of the gland. The present study was conducted to measure the normal height and anteroposterior diameter of the pituitary gland in men and women aged 15 to 40 in Kerman.
Materials and Methods: The present cross-sectional study was conducted on 119 subjects admitted to Fatemeh Zahra Imaging Center in Kerman selected through non-probability convenience sampling and who had no history of diseases of the sellar and parasellar region, pituitary gland disorders (especially those requiring surgery) or taking medications affecting corticosteroid or prolactin levels and who were not pregnant or lactating. The height and anteroposterior diameter of participants' pituitary gland was measured by a mid-sagittal T1 sequence MRI. The data obtained were analyzed in SPSS-19 using the ANOVA and the independent t-test.
Results: The mean height of the pituitary gland was 5.72±1.21 mm in the female subjects and 5.65±1.28 mm in the male subjects; however, the difference between the genders was not significant (P=0.7). The evaluation of the pituitary gland by age group showed that the height of the gland decreases in women by the increase in age and that its mean height is significantly higher in the 15-20 age group (p=0.005) compared to in the other age groups. There were no statistically significant differences in the height of the pituitary gland in men by age group (P=0.37).
The mean anteroposterior diameter was 9.96±1.44 mm in the female subjects and 10.02±1.18 mm in the male subjects, showing no statistically significant differences (P=0.8).
The surface of the pituitary gland was flat in more than half of the cases, while it was concave or convex in the other cases.
Conclusion: These measurements were performed on a healthy sample of the Iranian population from different age groups and can therefore be used as a point of reference for the evaluation of the pituitary gland in patients.

 
Keyword(s): PITUITARY GLAND, MAGNETIC RESONANCE IMAGING (MRI), HEIGHT
 
References: 
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