Primitive neuroectodermal tumour of the mandible.

Primitive neuroectodermal tumors (PNETs) are relatively rare tumors. Tumors that once would have been diagnosed as Ewing's sarcoma are now often designated as peripheral neuroepithelioma or synonymously PNET. Herein we report the first case of PNET of the mandible in a 6-year-old female who was admitted to the hospital with a two-months history of painless, progressively enlarging lower jaw mass.

Incudostapedial rebridging ossiculoplasty with bone cement.

Objective: This study reports the authors' technique and hearing results with bone cement reconstruction of the incudostapedial chain. The technique is called incudostapedial rebridging ossiculoplasty.

Study Design: A retrospective analysis of the hearing results of the incudostapedial rebridging ossiculoplasty was performed on 15 patients.

Clinical and histopathological correlates of the proliferative activity in squamous cell laryngeal carcinoma.

Objectives: To elucidate the clinical and histopathological significance of the proliferative activity as determined by PCNA and Ki67 levels and mitotic counting (MC) in laryngeal squamous cell cancer (LSCC).

Study Design: An analysis of clinical, histopathological and immunhistochemical (PCNA0 and Ki67) results of 28 patients, who were treated for LSCC, was made.

Methods: Clinical data of the patients were reviewed and corresponding archival paraffin embedded tissue samples were obtained.

Hearing status in brucellosis.

Background: Although brucellosis can lead to multisystem complications, involvement of the ear in brucellosis is rarely reported in the literature. The purpose of this study was to assess the hearing status of patients with brucellosis.

Study Design: Thirty-two patients with brucellosis were included in the study.

Inverse laminoplasty for the treatment of lumbar spinal stenosis.

Study Design: Fifteen patients with lumbar spinal stenosis were treated by a new technique, inverse laminoplasty, and the results were evaluated clinically and radiologically.

Objective: To present the advantages of inverse laminoplasty over laminectomy for the treatment of lumbar spinal stenosis.

Summary And Background Data: Laminectomy has been used widely in the treatment of lumbar spinal stenosis.

Prognostic significance of nuclear morphometry in renal cell carcinoma.

Objective: To assess nuclear morphometry as a predictor of prognosis in patients with renal cell carcinoma (RCC).

Patients And Methods: The study included 65 consecutive patients with RCC who underwent radical nephrectomy and were followed up for a median (range) of 80 (27-138) months. Nuclear morphometry was assessed using a computer-assisted image analysis system on histological sections and characterized by five nuclear variables (area, perimeter, major and minor diameter, and form factor).

Effects of nerve growth factor on the neurotization of denervated muscles.

Studies on surgical repair techniques of the peripheral nerve are still trying to improve the outcome. There are many studies on the effects of various neurotrophic factors on the transected peripheral nerve. Muscular neurotization, which is the direct implantation of the nerve to the target denervated skeletal muscle, is one of the techniques used when the primary repair of the peripheral nerves is not possible.

Short-term intestinal ischemia-reperfusion alters intestinal motility that can be preserved by xanthine oxidase inhibition.

While the effects of transient intestinal ischemia on mucosa have been well investigated, less is known about its effect on motor function. An experimental study was designed to investigate the effects of ischemia-reperfusion (I/R) on intestinal motility and intestinal muscular microcirculation. Wistar albino rats were divided into four groups: (1) baseline, (2) sham operation, (3) I/R, and (4) I/R with allopurinol pretreatment.

Polycythemia vera in a 12-year-old girl: a case report.

A case of a 12-year-old girl presenting with headache and splenomegaly and fulfilling the diagnostic criteria of polycythemia vera is reported. Her peripheral blood values were as follows: hemoglobin 18 g/dL, red blood cells 7,000,000/mm3, while blood cells 22,000/mm, and platelets 1,248,000/mm3. Phlebotomy was performed initially but was ineffective.

Neurotologic manifestations of the fibromyalgia syndrome.

The purpose was to assess otologic symptoms, and audiologic and vestibular findings in fibromyalgia (FM) syndrome. Twenty-four female patients with FM syndrome (FMS) were included in the study. The assessments were based on history, physical examination, audiometry, bithermal caloric testing and auditory brainstem response (ABR) testing.

Malignant mixed tumor of the larynx: a case report.

Malignant mixed tumour (MMT), which is a salivary gland tumour, is the malignant form of pleomorphic adenoma. Although the tumour can also originate from the minor salivary glands throughout the submucosa in the head and neck region, laryngeal involvement is quite rare. An additional case of laryngeal MMT presented in a forty-five year old man, and the diagnostic, immunohistochemical (S-100, actin, vimentin, epithelial membrane antigen) and therapeutic procedures were presented.

Does ileal reverse segment in rats with short bowel syndrome change intestinal morphology?

Background: The primary goal of surgical therapy for short bowel syndrome is to increase intestinal absorptive capacity. Many surgical procedures have been described for this purpose. One of these is ileal reverse-segment procedure.

Familial arthropathy with camptodactyly: reports of two families.

Familial association of congenital camptodactyly and arthropathy without evidence of concurrent inflammation has an autosomal recessive pattern of inheritance. We describe four children born to consanguineous parents in two families with congenital camptodactyly and polyarthropathy which were misdiagnosed and treated as juvenile rheumatoid arthritis (JRA) for some time. The siblings in the second family also had fibrosing pleuritis.

Isolated mesosigmoidal hydatid cyst as an unusual cause of colonic obstruction: report of a case.

We report herein an unusual case of primary mesosigmoidal hydatid cyst that presented as acute left colonic obstruction mimicking sigmoid colon cancer. A 61-year-old man with a 3-day history of abdominal pain, distention, obstipation, vomiting, and fever was admitted to the emergency department of our hospital. Surgery was performed under a presumptive diagnosis of acute left colonic obstruction.

Intestinal damage in gastroschisis correlates with the concentration of intraamniotic meconium.

Background/purpose: Contact with amniotic fluid (AF) causes intestinal damage in gastroschisis, which has been shown to be caused by intraamniotic meconium. However, whether this intraamniotic meconium-induced intestinal damage is concentration dependent has not been investigated previously. The purpose of this study is to investigate the effects of intraamniotic human meconium at various concentrations on the intestines of chick embryo with gastroschisis.

Prevention of posterior capsule opacification by retinoic acid and mitomycin.

Background: Our aim was to evaluate the effect of an intraoperative single dose of retinoic acid (RA) or mitomycin C (MMC) in preventing posterior capsule opacification (PCO).

Methods: Twenty-seven rabbits were divided randomly into three groups. RA (250 microg/ml) and MMC (0.

Prognostic significance of nuclear morphometry in superficial bladder cancer.

Objective: To evaluate the significance of nuclear morphometry in predicting the clinical course in superficial (pTa and pT1) bladder cancer.

Study Design: The study included 73 patients with superficial transitional cell carcinoma of the bladder who were followed for a median of 21 months (range, 1-90). Nuclear morphometry was performed by a computer-assisted image analyzer system on hematoxylineosin-stained histologic sections and characterized by five nuclear variables: area, perimeter, major and minor diameter, and form factor.

Expression of pS2 protein and its relation with the Ki-67 proliferative indices and tumor recurrence in superficial bladder carcinomas.

Objective: To investigate the expression and possible role of pS2 protein as a predictor of tumor recurrence in superficial transitional cell carcinoma of the bladder and to determine its relation with tumor stage, grade, size, number, recurrence and proliferative activity.

Methods: Paraffin sections of transurethral resection material from 80 patients with superficial transitional cell bladder carcinoma were stained with pS2 and Ki-67 antibodies using the standard streptavidin biotin immunoperoxidase method. Cytoplasmic pS2 staining was scored on a scale of 1-3 and the Ki-67-labelling index was determined as a percentage of positively staining tumor cells.

Effect of heparin on tendon degeneration: an experimental study on rats.

This study investigated the local effects of heparin on locally administered corticosteroid-induced experimental Achilles tendinitis. After performing Achilles degeneration, 28 rats were divided into two groups; one was treated with local heparin and the other with saline injections at 3 and 6-day intervals. The tendons and paratenons were excised after 60 or 75 days and evaluated histopathologically and statistically.

Prevention of posterior capsule opacification by intraoperative single-dose pharmacologic agents.

Purpose: To determine whether an intraoperative single dose of dexamethasone, diclofenac, ethylenediaminetetraacetic acid (EDTA), a combination of EDTA and RGD peptide (arginine-glycin-aspartic acid sequence), or mitomycin-C (MMC) is a pharmacological means of preventing or reducing the development of posterior capsule opacification (PCO).

Setting: Department of Ophthalmology, Celal Bayar University, School of Medicine, Manisa, and Department of Pathology, Dokur Eylül University, School of Medicine, Izmir, Turkey.

Methods: Fifty-four rabbits were randomly divided into 6 groups.

Involuntary movements in infantile cobalamin deficiency appearing after treatment.

Involuntary movements may be a symptom in most infants who present with neurologic syndrome of infantile cobalamin (vitamin B12) deficiency. In this report, two infants with cobalamin deficiency are presented. These patients also developed a striking movement disorder that appeared a few days after treatment with intramuscular cobalamin.