ACTA ENDOCRINOLOGICA (BUC)

The most common cause of hypercalcemia is parathyroid hyperplasia and carcinoma. Tuberculosis(TB) and sarcoidosis are the most common granulomatous diseases of the parathyroid. We report a case of parathyroid adenoma that can mimic many lesions. A 46-year-old woman on continuous ambulatory peritoneal dialysis (CAPD) with symptoms and signs of hypercalcemia. Laboratory findings were consistent with tertiary hyperparathyroidism. She underwent elective parathyroidectomy due to high PTH values despite effective treatment including calcimimetics and vitamin D receptor activators. Subtotal thyroidectomy and three and a half of parathyroid adenomas were removed. Histopathological examination revealed features of parathyroid adenoma with granulomatosis infection that supports tuberculosis. In order to confirm the pathological findings, the PCR study was performed on the pathology specimens. After obtaining a negative result, the treatment was stopped. We have reported a case of parathyroid adenoma that mimicking tuberculosis.

Granulomatous hypophysitis is a very rare inflammatory lesion of the pituitary gland. Its typical clinical presentation is as an expanding sellar mass mimicking an adenoma, making it difficult to confirm the disease without a histopathological examination. Furthermore, determining the underlying etiology is a significant diagnostic challenge for clinicians. Case Report. We report the case of a 42-year-old female who presented with a history of severe headache and a sellar mass on imaging; she was initially diagnosed with an invasive pituitary adenoma but received a final diagnosis of granulomatous hypophysitis. The differential diagnosis was focused on idiopathic granulomatous hypophysitis versus tuberculous hypophysitis. On the one hand, the patient did not present signs of active tuberculosis nor of a systemic disease, and the PCR for mycobacteria on the pituitary tissue was negative; therefore, a diagnosis of idiopathic granulomatous hypophysitis would be appropriate. However, because the patient was proceeding from an endemic zone of tuberculosis and her Mantoux and QuantiFERON tests were positive, tuberculous hypophysitis could not be totally excluded. Conclusions. This case highlights the difficulties of correctly diagnosing granulomatous hypophysitis, even postoperatively, and the need to be aware of this rare entity when evaluating a pituitary enlargement in order to provide the most appropriate treatment.

Background. The involvement of IGF 1 in renal pathophysiology has been studied in many details in type 1 diabetes but the role of IGF 1 in early nephropathy in patients with type 2 diabetes is less well characteristic. Objective. To determine whether serum IGF1 and GFBP-1 levels were different between patients with and without diabetic nephropathy and also to investigate the association between them and insulin resistance. Subjects and methods. Insulin resistance (HOMA-IR), IGF 1 and IGFBP-1 were measured in 20 type 2 diabetic patients with nephropathy, 20 type 2 diabetic patients without nephropathy and 15 control subjects. Results. Serum IGF 1 in diabetic nephropathy (333.3 +/-16.44 ng/mL) was significantly higher than in both diabetic patients without nephropathy (133.16 +/- 3.43 ng/mL) and in control subjects (174.33+/-6.23) (P <0.001). A significant negative correlation was observed between IGF 1 and HOMA, (r = -0.72) in diabetic patients without nephropathy and a positive correlation in diabetic nephropathy patients (r = 0.49). Conclusion. High IGF 1 and insulin levels in diabetic nephropathy patients in addition to the significant positive association between IGF 1 and HOMA suggest that both IGF 1 and insulin resistance may play major role in early renal changes in type 2 diabetes.