Introduction: The classical presentation of primary hyperparathyroidism, osteitis fibrosa cystica, has become very rare nowadays. This rarity makes it sometimes misdiagnosed leading to disastrous outcomes. Methods: We present a case of an undiagnosed primary hyperparathyroidism with severe osteitis fibrosa cystica and brown tumors that was first misdiagnosed as having bone metastasis. Conclusio...

The aim of this study was to reveal the pathogenesis of aortic stenosis (AS) and regurgitation (AR) by comparing differences in mechanical and biochemical alterations. We applied scanning acoustic microscopy (SAM) to measure the speed of sound (SOS) through valves to estimate the elasticity and monitor sensitivity to protease treatment, as the SOS is correlated with the stiffness of materials, ...

The mitral-aortic intervalvular fibrosa of the heart is of great clinical and surgical importance, because of its involvement in the anatomical and functional integrity of these two valves. In this work, we examined the morphology of the mitralaortic intervalvular fibrosa and its relationship to the mitral and aortic valves. Thirty formaldehyde-fixed adult human hearts of both sexes were dissec...

Primary hyperparathyroidism is due most often to a parathyroid adenoma secreting parathyroid hormone. Elevated PTH levels cause bone resorption, the formation of polyostotic lesions and a reduction in bone mineral density, predisposing to pathological fractures. The final stage of this disease is osteitis fibrosa cystica. The authors review the literature about osteitis fibrosa cystica and the ...

UNLABELLED INTRODUCTION Annular subvalvular pseudoaneurysm is a rare example of left ventricle aneurysm described predominantly in young African people. These aneurysms are divided into two different types, namely, submitral or subaortic, with subaortic being the less frequent kind. The subaortic type is most often localized in the mitral-aortic intervalvular fibrosa. To the best of our know...

Takayasu's arteritis is an inflammatory disease with a variety of manifestations, such as cardiac involvement. We describe a 52-year-old woman with clinical and echocardiographic manifestations mimicking infectious endocarditis, such as periaortic and mital-aortic intervalvular fibrosa abscess with extension to the anterior mitral leaflet. However, no infective tissue was discovered intraoperat...