Lale Damgacı

Aim: To determine the carotid body (CB) size and its relationship with hypertension, other sympathetically mediated disorders and smoking. Materials and Methods: Neck CT angiographies of 180 patients performed in our clinic in the previous year were included in the study. The patients' histories were assessed for hypertension (HT), congestive heart failure (CHF), diabetes mellitus (DM), chronic obstructive pulmonary disease and smoking. The study groups were smokers without any chronic condition (S group, n=21), patients with HT alone (HT group, n=26), patients that had at least two chronic disorders (CD+S group, n=78) and the controls (n=33). The widest axial diameter of the CB was measured on axial sections. Results: CB diameter could be measured in 158 patients. The CB diameter was significantly greater in HT (2.77±3.28 mm, p=0.02) and CD+S (2.76±3.38 mm, p

Aims: To investigate the accuracy of multidetector computed tomography (MDCT) findings, and the effect of tumor volume in determining the perinephric and renal sinus invasion in clear cell renal cell carcinomas (ccRCCs). Method: Fifty patients with ccRCCs underwent non-contrast and nephrographic-phase contrast-enhanced MDCT examination before total nephrectomy. The following MDCT features were used to diagnose perinephric fat tissue invasion: perinephric stranding, perinephric vascularity, and irregular contour. The following MDCT features were used to diagnose renal sinus fat invasion: elongation of tumor into renal sinus, invasion, or compression of pelvicalyceal system. Histopathologic examinations were used as a gold standard. Results: Fourteen out of 50 ccRCCs patients (28%) had histopathological-proven perinephric fat tissue invasion. The sensitivity, specificity, PPV, NPV, and accuracy of MDCT in the detection of perinephric fat tissue invasion were found 64%, 58%, 38%, 80%, and 60%, respectively. Seven out of 50 ccRCCs patient (14%) had histopathological-proven renal sinus invasion. The sensitivity, specificity, PPV, NPV, and accuracy of MDCT in the detection of renal sinus invasion were found 85%, 65%, 28%, 96%, and 68%, respectively. The area under of curve (AUC) value of tumor volume in the detection of perinephric fat invasion was 0.631. The AUC value of tumor volume in the detection of renal sinus invasion was 0.803. Conclusion: MDCT has a good sensitivity for detection of renal sinus fat invasion, but low PPV and specificity in patients with ccRCC. Tumor volume, and invasion into the pelvicalyceal structures can aid in the diagnosis of renal sinus fat invasion preoperatively.

Aim: To measure the bony carotid canal diameters in people without any cerebral vascular variations or aneurysms that would affect the bony carotid canal and to determine whether the variations of bony carotid canal width could be an indicator of cerebral vascular aneurysyms and variations. Material and Methods: Seven-hundred neck-brain CT angiographies were assessed retrospectively. Of the patients, 283 (40.4%) were women and 417 (59.6%) were men. Bilateral bony carotid canal diameter was measured. Cerebral vascular variations and aneurysms were recorded. Results: Normal canal diameter on the right, in all patients was 5.631±0.502mm, in males 5.797±0.475mm and 5.388±0.441mm in females; on the left side, 5.666±0.512mm overall, 5.825±0.492mm in males and 5.432±04.49mm in females (p=0.039,

The original article can be found online.

Purpose The aim of the present study was to evaluate the effect of patellofemoral joint morphology and patellar alignment (lateral patellar tilt and sagittal patellar tilt) on the presence and stage of CP, and identify the differences between sexes. Methods MRI of 243 patients [146 men (60.1%)] were evaluated retrospectively. Patients were grouped as normal group without chondromalacia, group with mild chondromalacia (grades 1–2) and group with severe chondromalacia (grades 3–4). Sagittal patellofemoral alignment was assessed by the angle between the patella and patellar tendon (P-PTA), and the angle between the quadriceps tendon and patella (Q-PA). Patellar tilt was assessed by lateral patellar tilt angle (LPTA). In addition, patellofemoral joint morphology was evaluated by measuring trochlear depth (TD), trochlear sulcus angle (TSA) and patella angle (PA). Results P-PTA, Q-PA, LPTA and TD values were significantly lower in patients with severe chondromalacia than in patients with both normal and mild chondromalacia (P < 0.001). TSA values were significantly higher in patients with severe chondromalacia than those with both normal and mild chondromalacia (P < 0.001). TSA was higher and TD was lower in women compared to men (P < 0.001). LPTA and P-PTA were lower in women compared to men, and the difference was significant. There was no difference in PA between the two sexes. Conclusions Patellar cartilage degeneration increases with trochlear dysplasia. There is a strong correlation between patellar malalignment (lateral patellar tilt and sagittal patellar tilt) and chondromalacia patella. Women are more prone to developing CP than men.

Amaç: Parotis bezi kitlelerinde ultrasonografi (US) ve bilgisayarlı tomografi (BT) bulgularının benign-malign ayrımındaki rolünü araştırmak. Materyal Metod: Fizik muayene ile parotis bezinde kitle saptanan 45 hastaya US ve BT incelemesi yapıldı. US’de kitlelerin yeri (yüzeyel lob-derin lob), boyutu, konturu (iyi sınırlı (düzgün-lobüle), irregüler), ekojenitesi (anekoik, hipoekoik, izoekoik veya hiperekoik), eko yapısı (homojen veya heterojen) değerlendirildi. BT’de boyut, kontur (iyi sınırlı (düzgün-lobüle), irregüler), kontrast tutulumu (homojen, heterojen) değerlendirildi. Otuzdokuz olgu opere oldu ve histopatolojik tanı aldı. Altı olguya ince iğne biyopsisi sonrası histopatolojik tanı kondu. Bulgular: Kırk beş kitlenin 39’u (86,7%) benign, 6’sı (13,3) maligndi. Benign olan 39 kitlenin 28’i pleomorfik adenom, 5’i Warthin tümörü, 1’i kapiller hemanjiom, 1’i, dermoid kist, 1’i lipom, 2’si tüberküloz lenf adenit, 1’i granülomatöz lenf adenit tanısı aldı. Malign olan 6 olgunun 1’i adenoid kistik kanser, 2’si lenfoma, 1’i malign melanom, 1’i kondrosarkom, 1’i mukoepidermoid karsinom tanısı aldı. Benign lezyonların tümünde US’de ve BT’de düzgün veya lobüle kontur saptanmış olup lezyonlar iyi sınırlıydı. Lenfoma saptanan 2 olguda iyi sınırlı ve lobüle konturluydu. Malign olan 4 lezyonda US ve BT’de irregüler kontur izlendi. US’de pleomorfik adenomların %79’unda, Warthin tümörlerinin %40’ında, lenfomalı 2 olguda homojen eko yapısı saptandı. Pleomorfik adenomların %21’inde ve tüm malign kitlelerde heterojen eko saptandı. BT’de pleomorfik adenomların %92,9’unda, Warthin tümörlü olguların %40’ında, lenfomalı iki olguda homojen kontrastlanma saptanırken, Pleomorfik adenomların %7,1’inde, malign olan 4 olguda heterojen kontrastlanma izlendi. Warthin tümörlü 3 olguda kistik komponent izlendi. Sonuç: US ve BT parotis kitlelerinde benign-malign ayrımında ve lezyonların ayırıcı tanısında kullanılabilir. İrregüler kontur ve çevre dokulara invazyon maligniteyi düşündürmelidir. BT ile lezyonların yerleşim ve uzanımları US’ye göre daha iyi değerlendirilmektedir.

Introduction We examined whether magnetic resonance arthrography (MRA) contributes to the diagnosis of syndesmotic complex disruption in ankle fractures. Patients suffering syndesmotic diastasis according to conventional radiographic criteria were evaluated by MRI and MRA. Material and methods Fifteen patients (15 ankles) with Denis-Weber type B and C fractures and were suspected of having syndesmotic diastasis considering tibiofibular clear space and tibiofibular overlap measurements in conventional radiographs were prospectively evaluated by MRI and MRA methods. Syndesmotic diastasis was diagnosed by radiographic, MRI, and MRA findings and by intraoperative observation and assessment criteria. Differences between MRI and MRA findings were tested statistically. Conventional radiography, MRI, and MRA results were analyzed by two independent observers, and interobserver concordance was also assessed. Results In 15 patients regarded to have syndesmotic diastasis on conventional radiography the diagnosis was confirmed in 8 (53.3%) with MRI and 12 (80%) with MRA. Following overall assessment 13 of 15 patients (86.6%) were determined to have diastasis. There were statistically significant differences in diagnosis after MRI and after MRA. There was interobserver concordance in conventional radiographic, MRA assessments, and in assessments for anterior and posterior tibiofibular ligaments separately in MRI. Conclusions These results suggest that conventional radiography and MRI is not sufficient in assessing syndesmotic disruption, and that MRA can make an important contribution to diagnosis in ankle fractures.