COMPARATIVE INCIDENCE OF MYCOTIC DISEASES INVOLVING THE ADRENAL GLAND.
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One of the major causes of chronic adrenal insufficiency (Addison's disease) is tuberculous adrenalopathy. Since sonography and computed tomography have become generally available in recent years and are of potential help in the diagnosis of this disease the merits of these methods are discussed in the light of 2 cases of adrenal tuberculosis, followed by a review of the literature. Adrenal calcification is the most significant, although not specific sign of adrenal insufficiency due to tuberculosis. Computed tomography has proven to be the method of choice in the non-invasive diagnosis of tuberculous adrenalopathy and in the monitoring of tuberculostatic treatment in this disease. Sonography is helpful as a preliminary investigation.
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Abnormal levels of adrenal hormones, or their metabolities, in the urine or blood are found in most patients with surgical diseases of the adrenal gland, including neoplastic and some hyperplastic states. Neuroblastomas and nonfunctioning adrenocortical tumors often present as abdominal masses. Surgery is required for the majority of these disorders, particularly for the malignant tumors.
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Immunochromatography has shown that human NOV (NOVH), a member of the CCN (CTGF/CYR61/NOV) family, forms a physiological complex with fibulin-1 in blood. We developed an enzyme immunoassay specific for NOVH and showed for the first time that the concentration of NOVH differs in each of these biological fluids. The normal concentration of NOVH circulating in the blood is 350-400 ng/ml, but this concentration varies with age. By using sera from patients with adrenal gland diseases we found that in vivo ACTH or glucocorticoids are not responsible for the high concentration of NOVH in this endocrine gland. However, the NOVH concentration was significantly modified in malignant adrenocortical tumors, but not in benign adrenocortical tumors. The concentration of NOVH was significantly decreased in patients suffering from astrocytomas or multiple sclerosis, two diseases of the nervous system. Thus, NOVH is a potentially useful marker for the diagnosis of these diseases.
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The authors present their own experience in the diagnosis and management of adrenal tumours and cysts. During the years 1980-2000, 74 patients were underwent surgical treatment. Of this group, 23 had Cushing's syndrome, 19 phaeochromocytomas, 4 Conn's syndrome, 2 virilising tumours, 2 adenocarcinomas, 2 ganglioneuromas, 7 adrenal cysts, 8 adenomas, 3 adenocortical carcinomas, 2 nodular hypertrophies, 1 myelolipoma and 1 liposarcoma. Treatment was effective in 73 (98.6%) of patients. We recommend the transperitoneal approach which allows the visual evaluation of both adrenals and extra adrenal tissue. We regard surgical intervention as being the only effective method of treating adrenal tumours.
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In a retrospective study, the impact of the various possible approaches for adrenalectomy were analyzed in 90 patients undergoing 120 adrenalectomies in one or two operations. The posterior approach proved to be the best tolerated procedure as expressed by the shortest operation time (less than 60 minutes) and the lowest blood loss (less than 100 milliliter). The number of opiate injections required was the lowest with this operation and the ambulation earliest (on the first postoperative day). Only two instances of wound infection, both from dorsal incision, occurred in operations for hypercortisolism in 46 patients (4 per cent). Splenectomy was necessary in four of 32 laparotomies (12 per cent), mostly for pheochromocytoma. There was no operative related mortality. The preoperative measures to reduce preoperative and postoperative complications are given.