Endocrine Abstracts

Background: The treatment of choice in prolactinomas are dopamine agonists, with surgery reserved for cases refractory to or poorly tolerant of pharmacotherapy. Little is known on the associations between clinical, neuroradiological and pathological features influencing the efficacy of transphenoidal surgery.The Aim: To evaluate clinical, neuroradiological and neuropathological aspects of surgically treated prolactinomas in women, with a particular empha...

Introduction: Atypical pituitary adenomas are often characterized by rapid growth and massive invasion of the surrounding structures. Usually, they are associated with poor prognosis and high recurrence rate due to resistance to conventional therapies. When surgery and radiation are ineffective, alternative therapies remain the last line treatment. Lately, a novel chemotherapy with capecitabine and temozolomide was proposed as a highly effective and extending the life of the p...

Introduction: Temozolomide (TMZ) can be administered as the last therapeutic option for aggressive pituitary tumors. Dopamine-agonist resistant prolactinomas are relatively frequent and remain a serious therapeutic problem. GH expressing atypical adenomas are rare and their positive response to TMZ is low. In a general opinion a lack of response to TMZ after three cycles predicts the treatment resistance.The aim of the study was presentation of two patie...

Introduction: The empty sella syndrome (ESS) is defined as the penetration of the subarachnoid space into intrasellar region. In ESS pituitary hormonal function is usually normal, but several, mostly subtle, hormonal abnormalities have been also reported. The coexistence of Cushing’s disease and primary empty sella is very rare.Objective: The presentation of an exceptional case of a patient with Cushing’s disease associated with primary empty s...

Introduction: Crooke’s cells are normal corticotrophs with cytoplasmic accumulation of cytokeratin filaments in response to glucocorticoids excess. Crooke’s cell corticotropinomas are the unique cause of Cushing’s disease. Nearly all of them are invasive macroadenomas, generally aggressive, refractory to conventional therapy, with high recurrence rate.Aim of the study was to present a case study of a patient with Cushing’s disease cau...

Introduction: Aggressive corticotropinomas are more invasive than other pituitary tumors. Recent reports have documented the efficacy of temozolomide alone or in combination with an anti-angiogenic agent –bevacizumab in invasive pituitary adenomas treatment.Objective: Presentation a case of 56-year-old woman initially diagnosed as Cushing’s disease and the analysis of treatment procedures with special concentration on temozolomide and bevacizum...

Introduction: Secondary hyperthyroidism due to thyrotropin-secreting pituitary adenoma (TSHoma) is rare. Coexistence of TSHoma and primary thyroid disease that could lead to hyperthyroidism is even more unusual.Case report: A 28-year-old female with longstanding and worsening symptoms of hyperthyroidism was admitted to the hospital. Free-T4 (32.89 pmol/l) and free-T3 (6.38 pg/ml) were elevated with moderately increased TSH level (5....

Introduction: Acromegaly is a rare endocrinopathy which shows characteristic phenotypic and metabolic features. Primarily patients in their forties or fifties suffer from this disorder but the main problem is late diagnosis, especially in men, even 10 years after the first symptoms. We present an unusual clinical course of acromegaly with no phenotypic features to stress the need to perform complete evaluation of endocrine function in hypogonadal patients.<p class="abstext...

Introduction: As observed clinically, the development of pituitary tumours and the probability of their recurrence after neurosurgery tend to be unpredictable. The aim of this work was to evaluate Ki-67 and nuclear and plasmatic prothymosin alpha indices as potential pathological markers to predict the aggressiveness of pituitary adenomas.Material and methods: Ki-67 and prothymosin alpha indices were determined by immunochemistry in specimens excised fro...

Germline AIP gene mutations have been linked with familial isolated pituitary adenomas (FIPA). Inactivating mutations of AIP have also been reported in seemingly sporadic pituitary adenomas, particularly of early onset, aggressive, and GH secreting.Aim: To assess the frequency and type of germline AIP gene mutations in patients with apparently sporadic PMAs.Material: The study included 31 consecutive patients with pituitary macroad...