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OBJECTIVE.The purpose of this study was to compare the appearance of pulmo-

A rare case of a primary malignant lymphoma of the rectum in a 7 year old girl is presented. Although rectal polyps in children are usually benign juvenile polyps, a rare possibility of malignancy should be kept in mind. An adequate histological examination is essential.

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We evaluated a novel method of computed tomography (CT) analysis using formalin-fixed lungs of autopsy cases with mild emphysema. Eight formalin-inflated lungs (FILs) obtained at autopsy were examined using CT after draining off the formalin and air inflation with an air pump, and subjected to pathological study including pathological scoring of emphysema and microscopic image analysis (MIA). Satisfactory CT examination was carried out within 5 h of lung fixation. The mean alveolar area determined by MIA correlated highly with the lung volume (r = 0.845) and CT score (r = 0.722). This method is simple compared with conventional polyethylene glycol fixation for CT and enables CT examination of resected lungs without anxiety about biohazards, Mild emphysema can be detected by MIA.