Pituitary apoplexy is defined as a clinical syndrome that may include headache, visual deficits, ophthalmoplegia, or altered mental status. It may result from either infarction or hemorrhage of the pituitary gland. Prognosis is significantly improved with early diagnosis and surgical treatment. We report two cases in which diffusion-weighted MR imaging assisted in the early detection of acute p...

Although pituitary function is often impaired in pituitary apoplexy, the development of thyrotoxicosis is rare. We describe an unusual case of hypopituitarism due to pituitary apoplexy coexisting with transient hyperthyroidism. A 74-year-old woman presented with severe fatigue, palpitation, appetite loss, hypotension, and hyponatremia. Endocrine studies showed hyperthyroidism and anterior pitui...

Apoplexy in sellar metastasis is very rare with only a few case reports in literature. A case of apoplexy in sellar metastasis from follicular thyroid carcinoma is reported and the literature is briefly reviewed. The patient presented with sudden onset headache and bi-lateral loss of vision following thyroidectomy in a case of follicular carcinoma thyroid with proven sellar metastasis. CT scan ...

JEFFERSON, M. & ROSENTHAL, F.D. (1959) Spontaneous necrosis in pituitary tumour. Lancet, i, 342. KIRSHBAUM, J.D. & CHAPMAN, B.M. (1948) Subarachnoid hemorrhage secondary to a tumor of the hypophysis with acromegaly. Annals of Internal Medicine, 29, 536. LOPEZ, I.A. (1970) Pituitary apoplexy. Journal of the Oslo City Hospital, 20, 17. MEADOWS, S.P. (1968) Unusual clinical features and modes of p...

Pituitary tumor apoplexy is a rare neuroendocrine syndrome resulting, in most cases, from hemorrhage or infarctation of a pre-existing pituitary adenoma. Treatment recommendations vary; some authors advocate urgent surgical decompression of the tumor, whereas others suggest that conservative management can lead to recovery of neuro-ophthalmologic function. We describe two patients with pituitar...

A patient who developed complications relating to ihtracranial arterial vasospasm following transcranial removal of a pituitary adenoma with pituitary apoplexy is reported. A 23-year-old female was admitted because of headache. Computed tomography (CT) and magnetic resonance (MR) imaging revealed a pituitary adenoma with suprasellar extension and pituitary apoplexy and sinusitis in the right ma...

Pituitary apoplexy is a rare clinical syndrome attributable to hemorrhage or hemorrhagic infarction of pituitary tumors or pituitary glands. The features of pituitary apoplexy associated with the endocrine stimulation test remain to be elucidated and the importance of surgical treatment has not been discussed enough. We report two rare patients who were treated successfully by endoscopic endona...

Pituitary apoplexy is a rare but life threatening condition caused by sudden haemorrhage or infarction of the pituitary gland. Potential precipitating factors in the occurrence of acute pituitary apoplexy in 30 consecutive patients were identified and compared with the clinical characteristics and outcome of patients with and without associated factors. Six patients had a previously known pitui...

The posterior lobe is an extension of the hypothalamus and secretes two hormones: antidiuretic hormone (or arginine vasopressin) and oxytocin. The pituitary stalk and the portal vessel pass through a small diaphragm that separates the sella turcica from the middle fossa. This anatomic arrangement places the pituitary at risk for infarction or hemorrhage when a mass increases pressure in the sel...