BACKGROUND The effect of chest wall tumours on chest wall mechanics is uncertain even less is known about the effects of resection and reconstruction. Our aim is to study how chest wall mechanics are altered in chest wall sarcoma and to determine the effect of chest wall reconstruction on chest wall kinetics. CASE PRESENTATION Using Optoelectronic Plethysmography (OEP), total and regional che...

Primary chest wall tumours are very rare. Chondrosarcoma is the most common tumour arising from the chest wall. We describe the occurrence of a slow-growing chondrosarcoma arising from the anterior chest wall in a 35-year-old male patient. The tumour was resected successfully and chest wall was reconstucted with prolene mesh and muscle flap. The patient was discharged uneventfully without any r...

Acquired chest wall deformities are rarely encountered. Most of them result from pathologic process within the thorax, chest wall disease, iatrogenic deformities or post-traumatic. We present a case of a huge axillary mass deforming the chest wall. Surgery treated a well-encapsulated lipoma. Six months postoperatively, the chest wall restored to normal shape with active respiratory physiotherap...

QUESTION What is the relationship between vibration of the chest wall and the resulting chest wall force, chest wall circumference,intrapleural pressure, and expiratory flow rate? Is the change in intrapleural pressure during vibration the sum of the intrapleural pressure due to recoil of the lung, chest wall compression, and chest wall oscillation? DESIGN Randomised, within-subject,experimen...

High-frequency input impedance measurements (Z(f)) provide useful noninvasive information on airway geometry and especially airway wall mechanics in the canine and human adult respiratory system. Using the high-speed interrupter technique (HIT), we have shown that it is possible to measure high-frequency Z(f) in infants up to 900 Hz, including antiresonant phenomena which are known to be relate...

Introduction: Cauda equina secondary to metastatic follicular thyroid cancer of the lumbosacral area is a rare entity.   Case Report: We report an unusual case of a 52-year-old male who presented with backache, lower limb weakness, and perianal numbness. A CT-scan of the lumbosacral area showed an enhancing mass at the L4, L5 and S1 vertebrae. Histopathology after excision revealed a metast...

BACKGROUND Primary chest wall tumor is rare but it encompasses tumors of various origins. We analyzed our experience with primary chest wall tumors with emphasis on its demographic presentation and management. METHODS From 1991 to 2004, 62 patients with the diagnosis of primary chest wall tumors were enrolled. Lipoma, chest wall metastasis, direct invasion from nearby malignancy, infection, a...

INTRODUCTION Arterial hypertension is often associated with a stiff aorta as a result of collagen accumulation in the aortic wall and may produce chest pain. In the present study, possible interrelationships between aortic function, collagen turnover and exercise-induced chest pain in patients with arterial hypertension and angiographically normal coronary arteries were investigated. METHODS ...

Pulsatile motion of blood in a circular tube of varying cross-section has been developed by considering slip flow at the tube wall and the blood to be a non- Newtonian biviscous incompressible fluid. The tube wall is supposed to be permeable and the fluid exchange across the wall is accounted for by prescribing the normal velocity of the fluid at the tube wall. The tangential velocity of the fl...

Background and Objective: Mediastinal masses in children are a heterogenous group of asymptomatic potentially life-threatening congenital, infectious, or neoplastic lesions that present complex diagnostic and therapeutic dilemmas. Materials and Methods: The clinical and laboratory features of 65 patients...