Calyceal diverticuli are rare entities which are difficult to diagnose radiologically as they mimic various other pathology. Close follow up is essential even in asymptomatic individuals to prevent complications. The authors present a giant calyceal diverticulum in a solitary kidney in a child that was managed by open surgery.
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http://dx.doi.org/10.4103/jiaps.JIAPS_231_20 | DOI Listing |
Front Cell Neurosci
November 2024
Department of Functional Neuroanatomy, Institute of Anatomy and Cell Biology, Heidelberg University, Heidelberg, Germany.
Activity has long been considered essential for circuit formation and maintenance. This view has recently been challenged by proper synaptogenesis and only mildly affected synapse maintenance in the absence of synaptic activity in forebrain neurons. Here, we investigated whether synaptic activity is necessary for the development and maintenance of the calyx of Held synapse.
View Article and Find Full Text PDFUrol Case Rep
July 2023
Hospital Universitário Oswaldo Cruz, Recife, Pernambuco, Brazil.
Calyceal diverticula are urine-filled non-secretory cavities that result from outpouchings of the kidney's calyx or pelvis. These cavities lie in the renal parenchyma and are linked to the kidney's collecting system through a narrow channel. They are generally small in size and present without symptoms.
View Article and Find Full Text PDFAnn Med Surg (Lond)
April 2023
Department of Surgery, Nepal Medical College.
Unlabelled: Staghorn calculus usually fills the pelvis of the kidney, the infundibulum, and most of the calyces. It is a rarity for staghorn stones to be asymptomatic; in addition to that, the calculus discussed in this case report was of a very large size and was removed intact. Open pyelolithotomy, the procedure used, is one that comes with a wide range of complications but can be deemed effective in certain cases.
View Article and Find Full Text PDFJ Neurosci
March 2022
Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, Illinois 60612-7308
Efficient and reliable neurotransmission requires precise coupling between action potentials (APs), Ca entry and neurotransmitter release. However, Ca requirements for release, including the number of channels required, their subtypes, and their location with respect to primed vesicles, remains to be precisely defined for central synapses. Indeed, Ca entry may occur through small numbers or even single open Ca channels, but these questions remain largely unexplored in simple active zone (AZ) synapses common in the nervous system, and key to addressing Ca channel and synaptic dysfunction underlying numerous neurologic and neuropsychiatric disorders.
View Article and Find Full Text PDFJ Indian Assoc Pediatr Surg
November 2021
Department of Paediatric Surgery, R.G. Kar Medical College, Kolkata, West Bengal, India.
Calyceal diverticuli are rare entities which are difficult to diagnose radiologically as they mimic various other pathology. Close follow up is essential even in asymptomatic individuals to prevent complications. The authors present a giant calyceal diverticulum in a solitary kidney in a child that was managed by open surgery.
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