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  • Book
    Luigia Romano, Antonio Pinto, editors.
    Summary: This book provides an overview on the critical role of diagnostic imaging in the assessment of patients with suspected alimentary tract perforation, an emergent condition that requires prompt surgery. With the aid of numerous high-quality images, it is described how different imaging modalities, including plain film X-ray, ultrasonography, and multidetector row computed tomography (MDCT), permit correct diagnosis of the presence and cause of the perforation and of associated pathologies. Particular attention is paid to MDCT, with full description of its role in a range of scenarios at various levels of the alimentary tract. Imaging of GI tract perforation in different patient groups, such as pediatric patients, the elderly, and oncologic patients, is also addressed. This volume will greatly assist residents in radiology, radiologists, and physicians who are daily involved in the management of patients with clinically suspected alimentary tract perforation.

    Contents:
    Diagnostic approach of alimentary tract perforation
    Plain film signs of pneumoperitoneum
    Ultrasonographic assessment of gastrointestinal perforation
    Esophageal perforation: assessment with Multidetector row Computed Tomography
    Role of Multidetector row Computed Tomography in the diagnosis of gastro-duodenal perforation
    Small bowel perforation: imaging findings
    Acute perforated appendicitis: spectrum of MDCT findings
    Acute perforated diverticulitis: spectrum of MDCT findings
    Colorectal perforation: assessment with MDCT
    MDCT imaging of blunt traumatic bowel and colonic perforation
    MDCT imaging of gastrointestinal tract perforation due to foreign body ingestion
    Pneumoretroperitoneum: imaging findings
    Imaging of gastrointestinal tract perforation in the pediatric patient
    Imaging of gastrointestinal tract perforation in the elderly patient
    Imaging of gastrointestinal tract perforation in the oncologic patient
    Role of Multidetector row Computed Tomography in the diagnosis of acute peritonitis due to gastrointestinal perforation
    Abdominal compartment syndrome and gastrointestinal tract perforation.
    Digital Access Springer 2015
  • Article
    Uray NJ, Gona AG.
    J Comp Neurol. 1979 May 15;185(2):237-51.
    The development of Purkinje cell dendrites was studied in the bullfrog from premetamorphic tadpoles to 10-week-old postmetamorphic frog-lets by the Golgi-Kopsch method. In this species two distinct patterns of arbor formation may be seen, which appear to be related to differences in the timing of initial dendritic development. In Purkinje cells that begin development in early tadpole stages, the dendritic tree is elaborated by continuous and concomitant growth and branching, a process by which the developing arbor expands in both height and width. Arbor formation in Purkinje cells that begin development in metamorphosing tadpoles proceeds in two separate steps. Initially, dendrites of such cells elongate, but form only a few poorly developed branches; only when the arbor reaches near-adult height does branching become extensive. Additional differences present in Purkinje cells are reflected in the paucity of growth cones and filopodia in the tadpole, and numerous filopodia and growth cones in the metamorphic period. An interesting feature of dendritic development in this species is a tendency to alter the arboreal domain by the formation of extra-arboreal dendrites, and possibly by the occasional resorbtion of other partially formed dendrites. The pattern of dendritic development in the frog is different than in mammals and is difficult to interpret. Such unusual development may be due to disturbances in the timing of the formation of Purkinje cell dendrites and of the establishment of the external granular layer (EGL).
    Digital Access Access Options