Browsing by Author "Harman, M."

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Breast Hamartoma: Radiologic Appearances
(2003) Harman, M.; Ünal, Ö.; Uǧraş, S.; Etlik, Ö.; Kotan, Ç.
Calcaneal Brown Tumor With Primary Hyperparathyroidism Caused by Parathyroid Carcinoma: an Atypical Localization
(2004) Dogan, A.; Algün, E.; Kisli, E.; Harman, M.; Kösem, M.; Tosun, N.
Brown tumors are one of the characteristics of primary hyperparathyroidism, although, in some cases, they are noted with secondary hyperparathyroidism as well. The authors present a case of a 50-year-old woman with primary hyperparathyroidism caused by parathyroid carcinoma with an unusual location of a brown tumor in the calcaneus. She first presented with pain and swelling over the heel and ankle, and the diagnosis was suspected by radiographs. Biopsy of the calcaneal lesion confirmed a brown tumor. After the parathyroid lesion was removed surgically, her symptoms were relived. The calcaneal lesion was treated with immobilization of the foot.
Case Report: Treatment With Arterial Embolization in a Destroyed Cervical Pregnancy
(2003) Harman, M.; Zeteroglu, S.; Etlik, O.; Arslan, I.
Cervical pregnancy is a rare form of ectopic pregnancy. It is frequently associated with extensive hemorrhage, which, in severe cases, may be stopped only by hysterectomy. We report a case of a destroyed cervical pregnancy simulating cervical cancer. The patient was conservatively managed with simple selective uterine artery embolization without methotrexate administration. Her vaginal bleeding ceased after embolization. No additional treatment was given. The patient resumed normal menstruation two months after embolization.
Compressive Effect of Large Persistent Trigeminal Artery Upon Pituitary Gland: Importance of Mri and Mra
(Elsevier BV, 2004) Harman, M.; Kýymaz, N.; Ayakta, H.; Kayan, M.
Persistent trigeminal artery (PTA) is a relatively frequent type of carotid-basilar anastomosis. Most of PTA has no symptoms and are noticed incidentally. We report a case of PTA compressing the right side pituitary gland, in a patient with hormonal disorder. In this report, we emphasize importance of MR imaging and MR angiography on demonstrating the relationship between the pituitary gland and PTA. © 2004 Elsevier Ireland Ltd. All rights reserved.
The Effects of Ursodeoxycholic Acid Alone and Ursodeoxycholic Acid Plus Low-Dose Acetylsalicylic Acid on Radiolucent Gallstones
(2003) Tuncer, I.; Harman, M.; Mercan, R.; Öztürk, M.; Arslan, I.; Meral, C.; Türkdoǧan, M.K.
Background/aims: Mucin, a high molecular weight glycoprotein secreted by the gallbladder and biliary duct epithelium, is a pronucleating agent in experimental and human gallstone disease. Blockage of mucin release with aspirin inhibits the formation of primary gallstones in animal models. The aim of this study was to compare the effects of ursodeoxycholic acid alone and plus low-dose aspirin on dissolution of solitary or multiple gallstones. Methods: There were three treatment groups comprising 43 patients with cholesterol gallstones: Group I (n=16, 13 females, three males) was givenursodeoxycholic acid (15 mg. kg. day) alone and Group II (n=14, 12 females, two males) was treated with aspirin (100 mg/day) in addition to ursodeoxycholic acid cholic. Group III was a control group of 13 cases (11 females, two males) who were monitored without medical treatment. Stone dissolution rates were evaluated sonographically in all patients at three month intervals during the treatment period. Results: After 12 months of treatment, stone dissolution was found in six (37.5%) of the patients in Group I and six (42.8%) of the patients in Group II. The difference in both treatment groups was significant compared to controls (p<0.05) but there was no significant difference between the two treatment groups (p>0.05). Of the cases in whom dissolution was achieved, all patients had multiple gallstones except for one with a solitary stone in Group I. Gallstones were not dissolved of any subject of group III. Conclusions: The results showed that ursodeoxycholic acid cholic therapy is more effective in the dissolution of multiple gallstones than of solitary ones. Combination with aspirin did not potentiate the efficacy of ursodeoxycholic acid cholic.
Multidetector Computed Tomography in the Diagnosis of Parathyroid Adenomas: Contribution of Contrast Enhancement Pattern To Diagnosis
(2004) Harman, M.; Algün, E.; Ayakta, H.; Sakarya, M.E.; Etlik, O.
PURPOSE: Contrast enhancement patterns of parathyroid adenomas in the arterial and venous phases were evaluated with multidetector computed tomography and specificity of the method to characterize the lesions was investigated. MATERIALS AND METHODS: Arterial and venous enhancement patterns of parathyroid adenomas were evaluated retrospectively with multidetector computed tomography in 12 patients. All adenomas were removed surgically and the diagnosis was confirmed histopathologically. An area from the mandibular angle to the aortic arch was scanned with 1.5 mm section thickness in the arterial phase (20 seconds delay time) and venous phase (70 seconds delay time) after bolus injection of 50 ml of iodinated contrast media. Arterial and venous contrast enhancement of parathyroid adenomas was evaluated in the axial and coronal reformat images. RESULTS: Ten (83.3%) of 12 parathyroid adenomas showed a heterogeneous enhancement with a hypodense small central area in the arterial phase and a homogeneous enhancement in the venous phase. However, two small lesions, four and five mm in diameter respectively, showed homogeneous contrast enhancement in the arterial phase unlike the larger lesions which displayed a hypodense center in this phase. CONCLUSION: Dynamic scanning with multidetector computed tomography after contrast administration may be helpful in characterizing parathyroid adenomas.
Pigmented Villonodular Synovitis Within Baker's Cyst: the Role of Mr-Arthrography
(Elsevier BV, 2003) Harman, M.; Arslan, H.; Doǧan, A.; Özen, S.; Ipeksoy, Ü.
We report a case of pigmented villonodular synovitis (PVNS) within Baker's cyst in a 55-year-old man who admitted to hospital with palpable popliteal mass. The mass was examined with ultrasonography (US), magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA). MRA was the best modality in the demonstration of the connection of the lesion with the joint space. In this study, we emphasized on the importance of the MRA in the PVNS within Baker's cyst. To the best our knowledge, this is the first report that illustrates the MRA characteristics of a PVNS within Baker's cyst. © 2002 Elsevier Science Ireland Ltd. All rights reserved.
Post-Traumatic Omental Herniation Into Pleural Space: Radiologic Features
(Elsevier BV, 2003) Harman, M.; Arslan, H.; Ayakta, H.; Odabasi, H.
A 43-year-old male with history of trauma was admitted to our clinic for the further evaluation of a blunted left costophrenic angle on chest roentgenograms. Computed tomographic (CT) scans demonstrated a crescent, fat-dense, extra-pleural mass on the left lateral hemi-thorax. Vertical funicular densities consistent with blood vessels were identified in this extra-pleural lesion on enhanced CT scans. T1-weighted axial and coronal magnetic resonance images (MRI) disclosed that the omentum ran continuously from the abdominal cavity into thoracic cavity a long left lateral hemi-thorax through a defect in the diaphragm. Surgical exploration revealed the laceration of left diaphragm and left parietal pleura. The omentum was herniated into the left pleural space through small diaphragmatic defect. We report X-ray, CT and MRI features of post-traumatic omental herniation into the pleural space that, to our knowledge it has not yet been reported so far.
Posterior Cerebral Artery Involvement in Moyamoya Disease
(2004) Harman, M.; Etlik, O.; Unal, O.; Sakarya, M.E.
A ten-year-old girl arrived at the hospital with progressive loss of muscular strength on the right side of the body. The cranial MRI showed left fronto-parietal ischemia and atrophic changes in the left parietal lobe. Brain MRI initially disclosed a narrow left MCA. MRA and digital angiography confirmed the diagnosis of brain obstructive chronic vascular disease (Moyamoya). Angiography results demonstrated occlusion of the left MCA and right posterior cerebral artery, with Moyamoya vessels. It therefore appears that in some patients Moyamoya disease is accompanied by posterior circulation involvement.
Power Doppler Sonography in the Diagnosis of Graves’ Disease
(2000) Arslan, H.; Unal, O.; Algün, E.; Harman, M.; Sakarya, M.E.
In addition to color and pulsed Doppler sonography findings, we aimed to describe power Doppler sonography findings in Graves’ disease in this study. Twenty-three patients with Graves' disease were imaged with gray-scale, color and power Doppler sonography. Twenty normal volunteers were examined by the same equipment and the same technique as a control group. A subjective grading system was used to categorize the vascularization in pulsed Doppler sonography images from normal to markedly increased vascularization. Power Doppler sonography exhibited diffuse hypervascularity in the thyroid gland in all patients. The flow was covering about all the parenchyma. Four patients showed mild, 12 patients moderate and seven patients marked vascularity. The intensity of power Doppler flow pattern was not correlated with the severity of the disease. This study demonstrated that power Doppler sonography is a convenient, time saving, inexpensive and noninvasive method as compared with isotope scan and some other laboratory tests for confirmation of Graves’ disease. © 1999 Elsevier Science Ireland Ltd.
The Role of Power Doppler Sonography in the Evaluation of Superficial Soft Tissue Abscesses
(1998) Arslan, H.; Sakarya, M.E.; Bozkurt, M.; Ünal, Ö.; Dilek, O.N.; Harman, M.
Objective: To evaluate the efficacy of power Doppler ultrasonography in depicting increased vasculature and hyperemia around the superficial soft tissue abscess. Materials and methods: 21 patients with soft tissue abscess were evaluated with gray scale imaging, color Doppler sonography, power Doppler sonography and computed tomography. In each case attempts were made using power Doppler sonography to demonstrate any areas of increased vascularity around the lesion. The results were compared with computed tomographic findings. Results: Peripheral hyperemia and increased vasculature were demonstrated with power Doppler sonography in 19 of 21 patients with soft tissue abscess. The hyperemic area demonstrated around the wall of the abscess by power Doppler sonography was similar to the enhanced area shown by computed tomography performed after contrast administration. Conclusion: Power Doppler sonography shows increased vasculature and hyperemia in the wall of abscesses. Therefore, power Doppler sonography can be used to assist with the diagnosis of superficial soft tissue abscess.
Splenic Abscess, Pleural Effusion and Severe Anemia Caused by Salmonella Typhi
(2000) Çaksen, H.; Öner, A.F.; Arslan, Ş.; Köseoǧlu, B.; Harman, M.; Ataš, B.; Abuhandan, M.
Various complications related to gastrointestinal system, central nervous system, and skeletal system may be observed during typhoid fever, but splenic abscess and pleural effusion are rarely encountered. A 12-year-old boy was admitted with fever, fatigue and pallor. On examination he had hepatosplenomegaly and severe anemia. He was diagnosed as having Salmonella typhi infection complicating with splenic abscess, pleural effusion and severe anemia, and successfully treated with percutaneous drainage with ultrasonography and antibiotics. In conclusion we would like to emphasize that typhoid fever should also be considered in patients with hepatosplenomegaly and severe anemia, and percutaneous drainage with ultrasonography may successfully be used in management of splenic abscess in typhoid fever.
Tibial Osteomyelitis Following Intraosseous Infusion: a Case Report
(2004) Dogan, A.; Irmak, H.; Harman, M.; Ceylan, A.; Akpinar, F.; Tosun, N.
Fluids, medications, and blood products can be rapidly administered via intraosseous infusion under emergency conditions, particularly to pediatric patients aged from 0 to 2 years. A five-month-old infant who had been hospitalized with a diagnosis of sepsis developed swelling and hyperemia at the infusion site 10 days after an intraosseous infusion in the right proximal tibia. Physical examination showed a serous discharge from a fistula on the anteromedial side of the right proximal cruris. Plain radiographs demonstrated periosteal reaction in the right tibia and osteolytic areas in the proximal metaphysis. With a diagnosis of acute osteomyelitis, drainage and medullary irrigation were performed and parenteral antibiotic treatment was initiated. Cultures from the surgical site yielded Candida albicans, upon which fluconazole (8 mg/kg) treatment was administered for four weeks. A complete clinical and radiographic improvement was observed at the end of a 12-month follow-up.
Two Giant Cavernous Hemangioma Caused Cavernous Transformation of the Portal Vein in a Pregnant Woman
(2002) Tuncer, I.; Arslan, H.; Harman, M.
We report a case with two giant hemangiomas of the liver that caused cavernous transformation of the portal vein in a 45-yr-old full term pregnant woman. The patient had no serious complaints other than a mass and slight pain in the right upper quadrant and there were no abnormalities in laboratory values. Delivery was performed without complication. In the six month follow-up period, no changes were seen in the lesions.
Uterine Leiomyoma Embolization: Role of Power Doppler Ultrasonography
(2003) Harman, M.; Zeteroglu, S.; Sengül, M.; Etlik, O.; Arslan, H.
PURPOSE: The vascularity of uterine leiomyoma was evaluated by power Doppler ultrasonography (PDUS) before and after bilateral uterine artery embolization (UAE) in order to establish the efficacy of the procedure and contribution to the treatment. MATERIALS AND METHODS: UAE was performed in 20 symptomatic patients with uterine leiomyoma. In addition to MRI and gray scale US, patients were evaluated by PDUS to assess the vascularity of the uterus and leiomyomas before and 6 months after the embolization and the findings were compared with angiography. Vascularity was categorized into 3 groups as mild (5 cases), moderate (7 cases) and marked (8 cases). Relationship between the findings of PDUS and treatment results were analyzed statistically by one-way ANOVA and post-hoc Tukey tests. RESULTS: In PDUS except their calcified and degenerated regions leiomyomas displayed more vascularity peripherally than centrally, before the embolization. Six months after the embolization, a decrease of 37%, 44% and 59% was observed in the mass of the leiomyomas that had revealed mild, moderate and marked vascularity before the embolization. Greater mass reduction occurred in leiomyomas with high pre-embolization vascularity (p < 0.05). CONCLUSION: PDUS gives important information about the vascularity of uterine leiomyomas before and after uterine artery embolization, which became a widespread treatment option in recent years. It can be helpful in the selection of patients for uterine artery embolization by revealing the vascularity of the leiomyomas. Also it is a non-invasive and cheap method in the determination of the efficacy of the procedure in the early and late periods after embolization.
Virtual Computed Tomography Cystoscopy in Bladder Pathologies
(Brazilian Society of Urology, 2006) Arslan, H.; Ceylan, K.; Harman, M.; Yilmaz, Y.; Temizoz, O.; Can, S.
Objective: Assessed the usefulness of virtual cystoscopy performed with multidetector computed tomography (CT) in patients with different urinary bladder pathologies compared to the conventional cystoscopy. Materials and methods: Eighteen patients with different bladder pathologies, which consisted of 11 tumors, 3 diverticula, 2 trabecular changes and 2 stones, were assessed with conventional cystoscopy and virtual CT cystoscopy. The results of virtual CT cystoscopy were compared with the findings of conventional cystoscopy. We determined the detection rate and positive predictive value of CT imaging based virtual cystoscopy in the diagnosis of urinary bladder lesions. Results: CT scanning was well tolerated by all patients, and no complications occurred. Images in 16 (88%) of the 18 virtual cystoscopic examinations were either of excellent or good quality. All tumors except one, 2 trabecular changes and 2 stones were characterized with similar findings in the both of methods. The masses ranged from 0.4 to 7.0 cm in diameter. While conventional cystoscopy could not evaluate interior part of the diverticulum, virtual CT cystoscopy could demonstrate clearly within it. There were no false-positive findings in our series. Conclusion: Virtual CT cystoscopy is a promising technique to be used in the detection of bladder lesions. It should be considered especially at the evaluation of bladder diverticula. In the future, it may be possible or even advantageous to incorporate into the imaging algorithm for evaluation of bladder lesion.