Displaying items by tag: chiasma
Sunday, 27 December 2015 16:48
12429
ke/bv/rg.
Date : 00.00.00
Name of the Patient : Abc Xyza Anlmn / F / 46 yrs.
Referred by : Dr. Abc Xyzhlani.
Examination : M.R.I. of the Sella & Perisellar Region.
CLINICAL PROFILE :
C/O polydypsia and poly urea and hypertension.
Clinically - central diabetes insipidus.
EXAMINATION :
M.R.I of the sella and perisellar region was performed using the following parameters :
3 mm thick T1 Weighted and T2 Weighted coronal images.
3 mm thick T1 Weighted sagittal images.
The brain was screened with 5 mm thick T1 Weighted and T2 Weighted axial images.
An MR Cisternogram was obtained in the sagittal plane.
Patient refused contrast study.
OBSERVATION :
The normal hyperintense signal of the posterior pituitary gland on the T1 Weighted images is not visualized.
There is thickening of the pituitary stalk. The region around the optic chiasma appears ill-defined incontinuity of the pituitary stalk. This is of intermediate signal intensity on the T1 Weighted images. A small punctate hyperintense focus is seen in the pituitary stalk on the T1 Weighted images just below the optic chiasma (105.5) and is seen to remain hyperintense on the T2 Weighted images. The pituitary stalk however is in midline.
The pituitary gland is seen along the floor of the sella. The anterior pituitary gland measures approximately 2.0 mm in height.
The hypothalamus and the cavernous sinuses are unremarkable on either side.
..2/.
- 2 - scan-00009
Screening, T2 Weighted axial images of the brain show a small hypointense focus in the left lentiform nucleus which may represent prominent perivascular space. The ventricular system is unremarkable.
IMPRESSION :
The MRI features are suggestive of :
1. Non-visualization of the hyperintense signal of the posterior pituitary gland can be seen with diabetes insipidus.
2. Thickened pituitary stalk and ill-defined area along the optic chiasma is suggestive of hypophysitis. Eosinophilic granuloma/sarcoidosis should be ruled out.
3. An empty sella.
If clinically indicated a contrast enhanced scan would be worthwhile.
Date : 00.00.00
Name of the Patient : Abc Xyza Anlmn / F / 46 yrs.
Referred by : Dr. Abc Xyzhlani.
Examination : M.R.I. of the Sella & Perisellar Region.
CLINICAL PROFILE :
C/O polydypsia and poly urea and hypertension.
Clinically - central diabetes insipidus.
EXAMINATION :
M.R.I of the sella and perisellar region was performed using the following parameters :
3 mm thick T1 Weighted and T2 Weighted coronal images.
3 mm thick T1 Weighted sagittal images.
The brain was screened with 5 mm thick T1 Weighted and T2 Weighted axial images.
An MR Cisternogram was obtained in the sagittal plane.
Patient refused contrast study.
OBSERVATION :
The normal hyperintense signal of the posterior pituitary gland on the T1 Weighted images is not visualized.
There is thickening of the pituitary stalk. The region around the optic chiasma appears ill-defined incontinuity of the pituitary stalk. This is of intermediate signal intensity on the T1 Weighted images. A small punctate hyperintense focus is seen in the pituitary stalk on the T1 Weighted images just below the optic chiasma (105.5) and is seen to remain hyperintense on the T2 Weighted images. The pituitary stalk however is in midline.
The pituitary gland is seen along the floor of the sella. The anterior pituitary gland measures approximately 2.0 mm in height.
The hypothalamus and the cavernous sinuses are unremarkable on either side.
..2/.
- 2 - scan-00009
Screening, T2 Weighted axial images of the brain show a small hypointense focus in the left lentiform nucleus which may represent prominent perivascular space. The ventricular system is unremarkable.
IMPRESSION :
The MRI features are suggestive of :
1. Non-visualization of the hyperintense signal of the posterior pituitary gland can be seen with diabetes insipidus.
2. Thickened pituitary stalk and ill-defined area along the optic chiasma is suggestive of hypophysitis. Eosinophilic granuloma/sarcoidosis should be ruled out.
3. An empty sella.
If clinically indicated a contrast enhanced scan would be worthwhile.
Published in
MRI Reports