"T1: isointense solid mass 1; posterior pituitary bright spot often absent"
"T1 C+ (Gd): bright contrast enhancement 1"
"T2: heterogeneous, hypointense to isointense 1"
"There is much confusion in the literature as to what exactly a pituicytoma is, with the term used synonymously by some authors for a number of other tumours, now thought to be separate lesions, or conversely as being distinct to other lesions, now believed to represent the same disease (e.g. pilocytic astrocytoma of the neurohypophysis, posterior pituitary astrocytoma, or infundibuloma) 1,3,4,6."
"In the 5th edition (2021) of the WHO classification of CNS tumours, these tumours are grouped together with granular cell tumours of the pituitary and spindle cell oncocytomas of the pituitary gland as "most likely representing a spectrum of a single nosological entity" unified by all having expression of thyroid transcription factor 1 (TTF-1) 6. Having said that, they go on to describe distinctive histological features, and as such, we continue to discuss these two other entities separately."
"GFAP: variable"
"EMA: variably/patchy"
"Ki-67: usually less than 2% 1,6"
"There is much confusion in the literature as to what exactly a pituicytoma is, with the term used synonymously by some authors for a number of other tumours, now thought to be separate lesions, or conversely as being distinct to other lesions, now believed to represent the same disease (e.g. pilocytic astrocytoma of the neurohypophysis, posterior pituitary astrocytoma, or infundibuloma) 1,3,4,6."
"The peak incidence of pituicytomas is between 40 and 60 years of age, although cases have been reported across a wide age range (7-83 years) 6. There is a slight recognised male predilection 6."
"There is much confusion in the literature as to what exactly a pituicytoma is, with the term used synonymously by some authors for a number of other tumours, now thought to be separate lesions, or conversely as being distinct to other lesions, now believed to represent the same disease (e.g. pilocytic astrocytoma of the neurohypophysis, posterior pituitary astrocytoma, or infundibuloma) 1,3,4,6."
"Clinical presentation is either from endocrine dysfunction (amenorrhoea, galactorrhoea, infertility, diabetes insipidus, panhypopituitarism, etc.), from compression of adjacent structures, typically the optic chiasm, or non-specific symptoms such as headache 3. Many are asymptomatic, with the lesion only found incidentally."
"T1: isointense solid mass 1; posterior pituitary bright spot often absent"