Pituitary macroadenomas and macroadenocarcinomas are being increasingly recognized in veterinary medicine. The term macroadenoma is poorly defined in veterinary medicine. Because pituitary imaging is not routinely performed in dogs with pituitary-dependent hyperadrenocorticism (PDH), the true incidence of pituitary macroadenomas is unknown but may range from 15% to 75% of dogs with PDH. Recent ...

PURPOSE We used the Swedish interactive threshold algorithms (SITA) standard strategy of Humphrey perimetry, to analyze the pattern of visual field (VF) defects and evaluate the quantitative correlation between the tumor volume and severity of VF defects in patients with pituitary macroadenoma. METHODS We reviewed 50 patients with pituitary macroadenoma who received VF test and 11 patients we...

We report a case of pituitary adenoma with normal hormone levels in 34-year-old female. She presented to OP headache, milky discharge from nipples and secondary amenorrhea transient loss vision. Patient had hyperprolactinemia all other hormones. MRI revealed space occupying lesion sellar suprasellar region. Neurological consultation suggested Rathke’s cyst/ craniopharyngioma/ macroadenoma. Exci...

BACKGROUND AND PURPOSE Intratumoral hemorrhage occurs frequently in pituitary macroadenoma and manifests as pituitary apoplexy and recent or old silent hemorrhage. T2*-weighted gradient-echo (GE) MR imaging is the most sensitive sequence for the detection of acute and old intracranial hemorrhage. T2*-weighted GE MR imaging was used to investigate intratumoral hemorrhage in pituitary macroadenom...

A 19-year-old man presented with bitemporal hemianopsia and was found to have a large sellar and suprasellar tumor, resembling a pituitary macroadenoma. Emergency transsphenoidal approach was attempted because of rapid visual deterioration with headache. However, the approach was complicated and stopped by uncontrolled hemorrhage from the tumor. After conventional cerebral angiography and recog...

The results of her basal pituitary function tests taken at that time are tabulated below ( table 1 ). These results suggest adrenocorticotropic hormone (ACTH), thyroid stimulating hormone (TSH) and prolactin deficiencies. A repeat MRI scan of her pituitary demonstrated a normal pituitary gland with no optic chiasmal compression, nor evidence of pituitary haemorrhage. In view of the spontaneous ...