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A case of malacoplakia in a cadaveric renal allograft is presented. Infection and immunotherapy are presented as possible etiologic factors. The pathogenesis of malacoplakia is discussed with reference to histologic findings in this specific case. The suggestion is made that an altered macrophage response in this disease is the reason for this granulomatous lesion of the bladder.

Gas-perfusion manometry is an inexpensive examination method, which enables the evaluation of the esophageal motility in moving test subjects under conditions of physical strain. It could be proved that physical strain negatively influences the esophageal motility by a decrease of the contraction amplitude.

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