15.4.1 Covered Anus Complete
Covered anus complete, or imperforate anal membrane are low lesions that are distinctly uncommon in almost all series , including ours.
High and intermediate varieties of anorectal agenesis without fistula are more common in our series and in the Japanese series than in other series. Some of our colleagues have seen this anomaly in association with Down syndrome (R. Chadha, 2005, personal communication). The coexistence of a proximal atresia has been described by Ein , Gangopadhyaya et al. , Sharma et al. , and Rajendran and Varma  (Fig. 15.8).
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.