Respiratory and Cardiopulmonary Nematode Species of Foxes and Jackals in Serbia.

As part of routine monitoring of foxes (Vulpes vulpes) and jackals (Canis aureus) on the territory of Vojvodina province (northern Serbia), an analysis of respiratory and cardiopulmonary parasitic nematodes was conducted. Both host species harbored Eucoleus aerophilus, E. boehmi and Crenosoma vulpis, whereas Angiostrongylus vasorum was found only in foxes. A high prevalence of infection (72.6 %) was noted for E. aerophilus in foxes. The remaining parasite species occurred less frequently in both host species. In all species where it could be quantified, a high degree of parasite aggregation within host individuals was noted. Single species infections were most common, whereas two and three species infections occurred less frequently in both host species. The distribution of abundance of E. aerophilus was affected by host sex, with abundances higher in male foxes. Sampling site and year influenced abundance variation in E. boehmi.

Technologies for nanofluidic systems: top-down vs. bottom-up--a review.

This paper gives an overview of the most commonly used techniques for nanostructuring and nanochannel fabrication employed in nanofluidics. They are divided into two large categories: top-down and bottom-up methods. Top-down methods are based on patterning on large scale while reducing the lateral dimensions to the nanoscale. Bottom-up methods arrange atoms and molecules in nanostructures. Here, we review the advantages and disadvantages of those methods and give some future perspectives. It is concluded that technology in the region of 1-10 nm is lacking and potentially can be covered by using the pulsed-laser deposition method as a controlled way for thin film deposition (thickness of a few nanometers) and further structuring by the top-down method.

Primary malignant melanoma of the rectum: a case report.

The aim of the study was to describe the diagnostic procedure, indications for operation and operative result in a patient with primary malignant melanoma of the rectum. In the patient, hospitalized at the Department of Surgery, School of Medicine in Zagreb, a malignant melanoma of the rectum was diagnosed by rectoscopy and histology. Tumor staging was determined by endorectal ultrasonography. Operation was indicated for malignant disease with partial obstruction of the rectum. Since the tumor was locally inoperable, with liver metastases a palliative operative procedure (sigmoidal colostoma) was performed. The operative finding confirmed the tumor stage obtained by ultrasonography. The patient died 5 months after the operation due to widespread dissemination of the malignant disease. Thereby, the accuracy of preoperative tumor staging by ultrasonography was confirmed. We believe that, in view of its accuracy, endorectal ultrasonography can be used for tumor staging in patients with primary melanoma of the rectum. Therefore, expensive diagnostic imaging methods like CT and MRI are no longer necessary.

Evaluation of ultrasound in the diagnosis of pathologic processes in the parotid gland.

The values of ultrasound in differentiation of pathologic processes in the parotid gland were studied in 61 patients. The ultrasound findings were compared with operative and histologic findings. In 28 patients with chronic inflammatory processes, the ultrasound findings were in complete correlation with the histologic findings, showing enlarged parotid glands, homogenous glandular epithelium, and small, multiple cysts. In 31 patients with a tumor of the parotid gland, ultrasound scanning detected the presence of the tumor. In determining the location of the tumor, the method is highly specific when it is localized in the superficial lobe (100%), and it is less specific when it is localized in the deep lobe of the parotid gland. Also, it is highly specific in determination of tumor size (96%). In two cases with retention cysts, the ultrasound findings also correlated with the histologic and operative findings. The results obtained show that ultrasound is a reliable diagnostic method for detection of pathologic changes in the parotid gland.

[Ultrasound as a diagnostic aid in maxillofacial surgery]. / Ultraschall als ein diagnostisches Hilfsmittel in der Kiefer-Gesichts-Chirurgie.

Ultrasonography is a relatively new diagnostic aid in maxillofacial surgery. It can be used in maxillofacial surgery in three modifications: Doppler sonography, A-scan sonography, B-scan sonography. As clinicians we wanted to determine what contribution ultrasound examination has made to the diagnosis of superficial maxillofacial masses, when compared with clinical examination, intraoperative findings and with other methods of investigations. Since 1985 B-scan sonography has been performed in the examination of congenital, inflammatory and neoplastic masses of the head and neck on more than 1500 patients. The ultrasound examination was performed in the Department of Radiology by radiologists. The value of the ultrasound findings varied depending on the soft tissue lesions which were examined and the experience of the radiologists who performed the examination. The advantages of the diagnostic ultrasound are in being noninvasive, without any known deleterious biological effect, rapid, painless, inexpensive and easily reproducible. Ultrasonography is a procedure which nowadays is routinely performed in our department for the preoperative evaluation of our cancer patients and postoperative follow-up as well as for the patients with inflammations, diseases of the salivary glands and soft tissue swellings.

[Value of ultrasound and sialography in diagnosis of chronic inflammatory diseases of the parotid salivary glands]. / Der Wert von Ultraschall und Sialographie bei chronischer Entzündung der Parotis.

In this study in 29 patients with Clinical picture of chronic parotitis the comparison was made between the ultrasound and sialographic characteristic. Biopsy of the parotid gland was performed in all patients and chronic disease was patho-histologically verified in all of them. Ultrasound diagnostic method according to our examinations has been shown to be a very reliable in detection of chronic inflammatory processes in the parotid salivary glands.