Preoperative Diagnostic Procedures

Author(s):  
Dietrich Klauwer ◽  
Christian Jux
2008 ◽  
Vol 55 (2) ◽  
pp. 75-78
Author(s):  
I.M. Nikolic ◽  
M.Lj. Rakic ◽  
E.E. Slavik ◽  
G.M. Tasic ◽  
B.M. Djurovic ◽  
...  

Besides current development of the new diagnostic procedures conventional angiography still represents the golden standard in the diagnosing of intracranial aneurysms. Since it gives a two-dimensional image if the presentation of the third dimension is wanted it is necessary to apply appropriate algorithm structures and computers. In this study we show our experience in the application of space reconstruction of blood vessels and aneurysms of the vertebrobasilary confluence in 6 patients operated at the Institute for Neurosurgery, Clinical Center of Serbia. Intraoperative finding in all patients matched the finding that we got by space reconstruction of the blood vessels, which was possible to observe from different angles. Postoperative course in all patients was satisfying. Upon discharge the patients were without rough lateralization of the pyramidal system. Our initial results and their practical agreement with the interoperative finding give us right to recommend this method as the standard for the preoperative diagnostic protocol.


2017 ◽  
Vol 125 (05) ◽  
pp. 327-334 ◽  
Author(s):  
A. Reinisch ◽  
P. Malkomes ◽  
N. Habbe ◽  
J. Bojunga ◽  
F. Grünwald ◽  
...  

Abstract Diagnostic guidelines for thyroid nodules focus on malignancy risk assessment to avoid unnecessary diagnostic operations. These guidelines recommend a combination of tests in form of a diagnostic algorithm. The present study analyzed the recommended algorithm and its implementation by different medical professionals. Preoperative diagnostic procedures, laboratory tests and histopathological findings of patients who underwent thyroid surgery between 2006 and 2013 were analyzed. The results were stratified by the assignation by specialized endocrinologists (ENP), general practitioners (GP) or Goethe-University Hospital Frankfurt (UKF). 677 patients were enrolled, of these 62% were assigned by UKF, 18.5% by an ENP and 19.5% by a GP. Ultrasonography rate was significantly higher in UKF (97.6%) compared to patients assigned by GP (90.9%, p<0.0001). Rates for fine-needle aspiration cytology ranged between 47.6% in UKF and 23.2% in ENP (p<0.0001). In over 93% of the patients an analysis of thyroid-stimulating hormone and triiodothyronine/thyroxin was realized. The overall malignancy rate was 11.82%. The malignancy rate was significantly higher if a FNA biopsy was performed (16.35 vs. 8.94%; p=0.0048). A higher malignancy rate could only be seen if the preoperative diagnostic workup included FNA. Besides this, the grade of algorithm adherence showed no effect on the malignancy rate.


2007 ◽  
Vol 15 (3-4) ◽  
pp. 69-73
Author(s):  
Rajko Jovic ◽  
Karol Canji ◽  
Slobodan Mitrovic ◽  
Vladimir Kljajic ◽  
Danijela Dragicevic

Background: T2 glottic carcinoma is a nonhomogenous localization of laryngeal carcinoma with two subcategories. The aim of the study was to retrospectively analyze the results of surgically treated pT2 glottic carcinomas and to determine the importance of subcategories of glottic carcinomas in diagnostics, surgical treatment, and patients? survival. Methods: During the period 1990-2000, 71/701 (10%) patients were diagnosed. with pT2 glottic carcinoma. All patients were treated with different surgical techniques. Results: Total laryngectomy was performed in 14/71 patients. Involvement of anterior commisure in local spreading of the cancer was found in 24/71 patients; total laryngectomy was performed in 13/24 and reconstructive surgery in 11/24. Selective resection of neck was done in 49 patients and metastases were found in 2 of these patients. Out of fifty-seven patients who had reconstructive laryngeal surgery local disease recurrence appeared in 8 patients. These 8 patients were treated with total laryngectomy. Overall 5-year survival was 90.1% with a slight difference between subcategories (89.1% subcategory I; 93.7% subcategory II) which was not statistically significant (p>0.05). Disease free 5-year survival was 83.6% with a difference between subcategories (81.1% subcategory I; 93.3% subcategory II) which was not statistically significant (p>0.05). Conclusion: Spreading of glottic carcinoma toward supraglottic and subglottic structures complicates exact preoperative evaluation of tumor size regardless to preoperative diagnostic procedures. Just owing to that, larger surgical resections performed bring more radicalness with less percentage of local recurrence and better effects on overall survival and disease free survival rate.


Author(s):  
Bojan Milosevic ◽  
Nenad Markovic ◽  
Rade Markovic ◽  
Aleksandar Cvetkovic ◽  
Bojan Stojanovic ◽  
...  

Abstract Synchronous multiple carcinomas represent two or more primary carcinoma that occur sumultaneously in the same patient. In order to fulfill the condition that tumors are synchronous, each tumor must be primary and not a metastasis of another tumor. The occurrence of renal carcinoma synchronously with colonic carcinoma is not so common. On the other hand, the pathohistological image in rare cases shows a mixed glandular and neuroendocrine component described in earlier works. In this paper, we present a patient who made a colonoscopy, a biopsy from a tumor change in the cecum due to malady, fainting, loss of appetite, and a positive test for faecal occult bleeding, and confirmed that it is an adenocarcinoma of the cecum. Multi slise computerized tomography of the abdomen also described a tumor change in the uretero-pelocalrix system of the left kidney region. The patient had no urinary tract disorders. The diagnosis of the synchronous tumor of the cecum and left kidney was set. A right hemicolectomy with latero-lateral ileo-transverse anastomosis, as well as left nephroureterectomy, was performed. What is particularly interesting in this case is that the pathohistological picture of the cecum carcinoma shows a rare form of tumor tone, mixed adenoneuroendocrine carcinoma. In patients with diagnosed colorectal cancer, routine as well as additional preoperative diagnostic procedures should be performed to exclude the existence of kidney cancer, since, when synchronous with colorectal carcinoma occurs, renal carcinoma is mainly asymptomatic. In rare cases, the pathohistological picture may also show the neuroendocrine component of the tumor, which directs further therapy to the other direction.


2011 ◽  
Vol 58 (3) ◽  
pp. 121-123
Author(s):  
Ranko Lazovic ◽  
Miodrag Radunovic ◽  
Vladimir Dobricanin

Meckel?s diverticulum represents one of the most common congenital anomalies of the gastrointestinal system. It appears in 1-3% of the general population. In this case study we presented 72 year old male patient who was admitted in the Center for abdominal surgery, Clinical Center of Montenegro. The symptoms were diffuse, severe abdominal pain, nausea and vomiting with intestinal obstruction. After the preoperative diagnostic procedures we performed resection of the terminal ileum and T-T anastomosis. Whenever the patient has the clinical findings of acute abdomen and no matter if patient is in elderly, we should think on complications of the Meckel?s diverticulum.


Author(s):  
Bruce Mackay

The broadest application of transmission electron microscopy (EM) in diagnostic medicine is the identification of tumors that cannot be classified by routine light microscopy. EM is useful in the evaluation of approximately 10% of human neoplasms, but the extent of its contribution varies considerably. It may provide a specific diagnosis that can not be reached by other means, but in contrast, the information obtained from ultrastructural study of some 10% of tumors does not significantly add to that available from light microscopy. Most cases fall somewhere between these two extremes: EM may correct a light microscopic diagnosis, or serve to narrow a differential diagnosis by excluding some of the possibilities considered by light microscopy. It is particularly important to correlate the EM findings with data from light microscopy, clinical examination, and other diagnostic procedures.


2000 ◽  
Vol 42 (9) ◽  
pp. 646-647 ◽  
Author(s):  
Hilary Espezel ◽  
Carolyn Graves ◽  
James E Jan ◽  
Anton Miller ◽  
Karin Renner ◽  
...  

1989 ◽  
Vol 8 (3) ◽  
pp. 517-540
Author(s):  
George H. Belhobek ◽  
Bradford J. Richmond ◽  
David W. Piraino ◽  
Harris Freed

2020 ◽  
Vol 59 (04) ◽  
pp. 294-299 ◽  
Author(s):  
Lutz S. Freudenberg ◽  
Ulf Dittmer ◽  
Ken Herrmann

Abstract Introduction Preparations of health systems to accommodate large number of severely ill COVID-19 patients in March/April 2020 has a significant impact on nuclear medicine departments. Materials and Methods A web-based questionnaire was designed to differentiate the impact of the pandemic on inpatient and outpatient nuclear medicine operations and on public versus private health systems, respectively. Questions were addressing the following issues: impact on nuclear medicine diagnostics and therapy, use of recommendations, personal protective equipment, and organizational adaptations. The survey was available for 6 days and closed on April 20, 2020. Results 113 complete responses were recorded. Nearly all participants (97 %) report a decline of nuclear medicine diagnostic procedures. The mean reduction in the last three weeks for PET/CT, scintigraphies of bone, myocardium, lung thyroid, sentinel lymph-node are –14.4 %, –47.2 %, –47.5 %, –40.7 %, –58.4 %, and –25.2 % respectively. Furthermore, 76 % of the participants report a reduction in therapies especially for benign thyroid disease (-41.8 %) and radiosynoviorthesis (–53.8 %) while tumor therapies remained mainly stable. 48 % of the participants report a shortage of personal protective equipment. Conclusions Nuclear medicine services are notably reduced 3 weeks after the SARS-CoV-2 pandemic reached Germany, Austria and Switzerland on a large scale. We must be aware that the current crisis will also have a significant economic impact on the healthcare system. As the survey cannot adapt to daily dynamic changes in priorities, it serves as a first snapshot requiring follow-up studies and comparisons with other countries and regions.


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