Rathke's cleft cyst - spontaneous regression

Case contributed by A.Prof Frank Gaillard

Presentation

Known right sided pituitary lesion, stable since 2004.

Patient Data

Age: 25 years

MRI 2008

Modality: MRI

 The non-enhancing nodule, presumed to represent a cyst, centred in the right side of the pituitary gland, is stable in size, currently measuring 7 x 10 mm. Intrinsic T1 signal has degraded, with the nodule now approximating CSF intensity.

The infundibulum demonstrates mild stable leftward deviation.

Once again, the optic chiasm and cavernous sinuses lie within normal limits.

MRI 20011

Modality: MRI

The non-enhancing T1 hypointense ovoid nodule, consistent with cyst/necrotic adenoma, centered in the right side of the pituitary gland, has significantly reduced in size, currently measuring 6.5 mm (AP/W) x 4 mm (H).

The infundibulum demonstrates mild stable leftward deviation/angulation. Once again, the optic chiasm and cavernous sinuses lie within normal limits.

The remainder of the study is unremarkable.

MRI 2013

Modality: MRI
The previously described right-sided pituitary cyst, best described in 2004, and unchanged until 2008, but significantly reduced in 2011, has completely resolved, with the pituitary appearing now normal, with only minimal residual leftward deviation of the infundibulum.

Case Discussion


Spontaneous and complete resolution of the previous right-sided pituitary cyst. Such spontaneous resolution of Rathke's cleft cysts is uncommon but certainly reported.  

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Case Information

rID: 23131
Case created: 23rd May 2013
Last edited: 1st Nov 2015
Inclusion in quiz mode: Included

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