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Lateral and median cysts of the neck

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The aim of the study was to present clinical picture, indications for surgery, immediate and remote results of surgical treatment for lateral and median cysts of the neck. Material and methods. A total of 17247 patients were operated between 1 January 1990 and 31 December 2011 for neck tumors. Results. Neck cysts were diagnosed in 34 (0.2%) patients, including lateral in 12 (35.3%) and median in 22 (64.7%). Lateral cyst once descended to the mediastinal. Nodular goitres were diagnosed in 17 (50%) of them - with the lateral cysts 4x and median cysts 13x. Guided fine-needle aspiration biopsy of the cyst-like lesions revealed the presence of protein masses in all patients. The lesions were found to have inflammatory character in 6 patients (17.6%) regarding median cysts (5x) or lateral cyst (1x). Out of them, 3 patients developed purulent inflammatory process. All patients were operated. The operation consisted of radical resection of the cyst only or plus partial resection of both thyroid lobes and total resection of pyramidal lobe if concomitant goitre was found. Two patients required one-stage resection of the enlarged lymph nodes in the neck. Suspected focus of thyroid papillary cancer was found by intra-operative examination in neck median cyst wall in one patient. However, paraffin tests did not confirm the suspicion. Another patient was found by histopathological examination to have active tuberculotic process within both lateral cyst and lymph nodes. The patient received intensive antituberculotic treatment postoperatively. Conclusions. 1. Median cysts of the neck are more often accompanied by thyroid tumor-like goitres than lateral cysts. 2. Radical resection of the cysts in operative treatment results in good long term patient condition and prevent in recurrence of the illness.
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The aim of the study was intraoperative assessment of surgical treatment used for primary hyperparathyroidism (PH) basing on immediate histopathological findings and of parathormone (PTH) concentrations in blood serum, the latter being determined before and after removal of the affected parathyroid glands.Material and methods. The study group consisted of 110 patients: 85 women and 25 men aged 16-72 years (mean 49.3), treated surgically for PH or its recurrence. Each patient was operated together with bilateral neck exploration. The identified parathyroid glands were assessed. The operation was considered successful if the cause of PH could be confirmed by intraoperative histopathological examination, and PTH level was found lower than 50% of its preoperative value. Negative results of intraoperative tests were considered an indication for wider exploration of the neck or another full imaging diagnostics in order to decide about reoperation.Results. Parathyroid adenoma was detected in 85 (77.3%) patients, proliferation of the gland in 18 (16.4%) and parathyroid cancer in 7 (6.3%). Basing on intraoperative microscopic and immunochemical examinations, the surgical treatment was found successful in 107 (97.3%) patients. PTH concentration was found normal in 94 patients, and significantly lower in 13. The operation was assessed as unsuccessful in 3 (2.7%) patients (2x recurrence of parathyroid cancer, 1x proliferation of parathyroid glands). A non-significant PTH drop was noted in 1 patient, and PTH increase in 2. One patient died because of disseminated tumor disease, and 2 patients received another imaging diagnostics and reoperation with good result.Conclusions. 1. Positive result of intraoperative histopathological examination together with a significant drop in parathormone concentration in peripheral blood serum are essential for successful surgical treatment of PH. 2. Negative results of microscopic and immunochemical examinations are an indication for wider neck exploration. If further procedure is still unsuccessful, a more profound imaging diagnostics is necessary followed by reoperation.
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JunGene Expression is Decreased in Parathyroid Adenoma

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The aim of the study was to analyze the gene expression of JUN and CCND1 in a group of parathyroid tissues obtained from patients with primary hyperparathyroidism in comparison to hyperplastic parathyroid and normal/atrophic parathyroid tissues by real-time quantitative PCR. Our goal was to validate the conclusion of Forsberg et al (2005) who reported overexpression of JUN in parathyroid adenomas by a joint microarray and QPCR study.Material and methods. The analysis of JUN, CCND1 was carried out by QPCR in 14 parathyroid adenomas, 8 hyperplasia cases and 50 normal/atrophic parathyroid samples taken intraoperatively. Expression of the examined genes was normalized to the reference index (geometric mean of reference genes expression: EIF3S10, UBE2D2, ATP6V1E).Results. We observed a decrease of JUN expression in parathyroid adenomas in comparison to both normal/atrophic and hyperplastic parathyroids. The fold change value was 0.71 in comparison of adenomas to normal/atrophic samples (p = 0.044) and 0.75 to hyperplastic glands (p = 0.003). For CCND1 we observed one case of parathyroid adenoma with a very clearly increased expression, while 3 adenomas (21.4% of all adenomas) exhibited the increase over the highest value seen in normal parathyroids (fold change = 3.52).Conclusions. In parathyroid adenomas we were not able to confirm any overexpression of JUN gene, as suggested by the previous study. On the contrary, we observed a distinct inhibition of JUN RNA expression in comparison to non-neoplastic parathyroids. For CCND1 gene overexpression in parathyroid adenomas, we report the frequency of 21.4%.
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