open access

Vol 8, No 2 (2005)
Published online: 2005-06-23
Submitted: 2012-01-23
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The case of Cushing's disease imaging by SPECT examination without manifestation of pituitary adenoma in MRI examination

Marcin Gierach, Joanna Pufal, Stanisław Pilecki, Roman Junik
Nucl. Med. Rev 2005;8(2):137-139.

open access

Vol 8, No 2 (2005)
Published online: 2005-06-23
Submitted: 2012-01-23

Abstract

BACKGROUND: The aim of our study was to evaluate the possibility of imaging the pathological accumulation of 99mTc-MIBI in the pituitary gland in patients with Cushing's disease when MRI examination does not show microadenomas.
MATERIAL AND METHODS: Cushing's disease was diagnosed in a 27 year old male on the basis of clinical and biochemical findings. The blood cortisol level of the patient was elevated (the average level was 47 ug/dl) and it showed no changeability of day and night rhythm.
RESULTS: In the patient with Cushing's disease, during the SPECT examination, an increased accumulation of 99mTc-MIBI in the pituitary gland was noticed. MRI scanning was negative.
CONCLUSION: Single photon emission computed tomography using 99mTc-MIBI is a useful and sensitive means of pituitary gland microadenoma detection in patients with Cushing's disease when microadenoma is not detected during MRI scanning and when the results of dexamethasone suppression test is positive.

Abstract

BACKGROUND: The aim of our study was to evaluate the possibility of imaging the pathological accumulation of 99mTc-MIBI in the pituitary gland in patients with Cushing's disease when MRI examination does not show microadenomas.
MATERIAL AND METHODS: Cushing's disease was diagnosed in a 27 year old male on the basis of clinical and biochemical findings. The blood cortisol level of the patient was elevated (the average level was 47 ug/dl) and it showed no changeability of day and night rhythm.
RESULTS: In the patient with Cushing's disease, during the SPECT examination, an increased accumulation of 99mTc-MIBI in the pituitary gland was noticed. MRI scanning was negative.
CONCLUSION: Single photon emission computed tomography using 99mTc-MIBI is a useful and sensitive means of pituitary gland microadenoma detection in patients with Cushing's disease when microadenoma is not detected during MRI scanning and when the results of dexamethasone suppression test is positive.
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Keywords

Cushing disease; SPECT; MRI

About this article
Title

The case of Cushing's disease imaging by SPECT examination without manifestation of pituitary adenoma in MRI examination

Journal

Nuclear Medicine Review

Issue

Vol 8, No 2 (2005)

Pages

137-139

Published online

2005-06-23

Bibliographic record

Nucl. Med. Rev 2005;8(2):137-139.

Keywords

Cushing disease
SPECT
MRI

Authors

Marcin Gierach
Joanna Pufal
Stanisław Pilecki
Roman Junik

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