Kidney loss due to periureteral fibrosis and ureteral obstruction secondary to migration of subureterically injected calcium hydroxylapatite.

Vesicoureteral reflux (VUR) is one of the significant urologic diseases of childhood and its endoscopic treatment is a viable option in terms of both simplicity and reduced morbidity. However, despite intensive research, no ideal injection material that yields the best long-term results with the least side effects has been introduced as yet. Synthetic calcium hydroxylapatite is one of the materials that has recently been under trial.

Skin manifestations of rheumatoid arthritis: a study of 215 Turkish patients.

Objective: To investigate the frequency and clinicopathological features of skin involvement in rheumatoid arthritis (RA), to find out whether early and aggressive disease-modifying treatment is changing the spectrum towards a milder disease pattern.

Methods: Two hundred and fifteen consecutive RA patients were enrolled. Main outcome measures were the frequency of cutaneous features and their relation to disease severity and treatment modality, ultrasound (USG) examination of nodules, histopathological examination of nodules and papules.

Proximal type epithelioid sarcoma of the scrotum: a source of diagnostic confusion that needs immediate attention.

Epithelioid sarcoma is a rare soft-tissue sarcoma which classically presents as a subcutaneous or deep dermal mass in distal extremities of adolescents and young adults. A more aggressive "proximal" or "large-cell" type has been described in rare cases to occur as a deep soft-tissue mass at proximal body sites which tends to recur and metastasize earlier than the conventional epithelioid sarcoma. The correct diagnosis of this type is essential since these lesions can easily be misdiagnosed as other epithelioid lesions.

Testicular biopsy during orchidopexy procedure: does it have an adverse effect on fertility?

Introduction: The aim of this study is to evaluate the effect of the gonadal biopsy procedure on fertility and histology of the experimentally created undescended testis.

Materials And Methods: Thirty Wistar-Albino rat litters were divided into three groups. In the first two groups, undescended testes were obtained by dividing the right gubernaculum in the first 48 h and the third group constituted the sham group.

Epidermal growth factor and bombesin act synergistically to support intestinal adaptation in rats with massive small bowel resection.

Intestinal adaptation is the most important event in short bowel syndrome following a massive small bowel resection. Effects of various growth factors and their synergism have been well documented in intestinal adaptation. This study aimed to compare the effect of two different trophic agents, epidermal growth factor (EGF) and bombesin (BBS), on intestinal adaptation following massive intestinal resection.

Extravascular papillary endothelial hyperplasia of the larynx: a case report and review of the literature.

Papillary endothelial hyperplasia (PEH), a tumor that falls along the spectrum of reactive to neoplastic vascular lesions, must be diagnosed carefully because it can resemble an angiosarcoma. PEH is generally considered to be the result of an unusual form of thrombus organization, exhibiting excessive papillary endothelial proliferation that is usually confined to the lumen of preexisting vessels or vascular malformations. Most cases of PEH are of the intravascular type; extravascular PEH is rare.

The roles of free oxygen radicals, nitric oxide, and endothelin in caustic injury of rat esophagus.

Purpose: The authors aimed to find out the roles of free oxygen radicals, nitric oxide (NO), and endothelin (ET) in caustic injury of rat esophagus.

Methods: Forty-five Wistar albino rats were used to form 6 groups. The study groups are summarized as 1, sham (S; n = 7); 2, sham + L-arginine (SA; n = 7); 3, sham + L-NAME (SN; n = 7); 4, injury (I; n = 8); 5, injury + L-arginine (IA; n = 8); 6, injury + L-NAME (IN; n = 8).

Effects of hyperbaric oxygen therapy on caustic esophageal injury in rats.

Background/purpose: Caustic esophageal burn is a serious problem in pediatric surgery. Even though many clinical and experimental studies had been performed, the complication rate could not be reduced to a satisfying level. In this study, the authors evaluated the effects of hyperbaric oxygen (HBO) therapy in caustic esophageal burn in rats.

Gastric histopathology, iron status and iron deficiency anemia in children with Helicobacter pylori infection.

Objectives: Helicobacter pylori has been established as a major cause of gastritis and peptic ulcer disease in adults and children. H. pylori infection may also have a role in the development of some extra-gastrointestinal diseases, including iron deficiency anemia.

Meconium periorchitis--a rare cause of a paratesticular mass.

We report a 9-month-old boy who presented with a hard paratesticular mass. Clinical and ultrasound findings were highly suggestive of malignancy and orchidectomy was performed. Histology confirmed the unexpected diagnosis of meconium periorchitis, a rare, benign condition resulting from intrauterine bowel perforation.

AgNOR values are not helpful in the differential diagnosis of pituitary adenomas.

Nucleolar organizer regions (NOR) are chromosomal segments in which ribosomal RNA is encoded. AgNOR technique, which reveals these regions, has rarely been used in the diagnosis and preceding the prognosis of pituitary adenoma. The purpose of this study was to determine and evaluate the correlation of hormonal profile with AgNOR counts, the correlation of recurrence with AgNOR counts, and to determine the consistency between the evaluations of the two independent observers.

The Mckusick-Kaufman syndrome: report of a case with some associations.

McKusick-Kaufman syndrome (MKS) is a rare autosomal recessive condition consisting of congenital hydrometrocolpos, polydactyly and congenital heart defect. We present a female stillborn, the product of non-consanguineous parents, who presented postaxial polydactyly on both feet, micrognathia and marked abdominal distension. Postmortem examination revealed bicornuated cystic uterus and intestinal malrotation.

A rare primary pulmonary tumor of childhood.

Pleuropulmonary blastoma (PPB) is known to be the pulmonary blastoma of childhood. It has a range of macroscopic and microscopic features which appear to correlate with eventual prognosis. Type 1, presenting as a multicystic lesion, occurs at an earlier age and has a more favorable prognosis than other types.