Parasitic Infections

The Pathology of Community-Acquired Pneumonia

“…Pleural effusions, interstitial edema, and lobar consolidations have also been reported (Baird et al, 1994). Babesia microti can also produce respiratory failure and ARDS similar to P. falciparum.…”

“…Virtually all the cases reported with evidence of the organism in respiratory specimens also had intestinal disease. The organism was found along the ciliated border of the bronchial and tracheal mucosa and in the bronchial submucosal glands (Baird et al, 1994;Kemper, 1997). Microsporidium has been reported in AIDS patients who developed pleuritis and a lobar infiltrate with edema, vascular congestion, and a mixed inflammatory infiltrate.…”

“…The core of an amebic abscess contains necrotic debris with occasional inflammatory cells and trophozoites. The latter are concentrated in the periphery of viable tissue around the abscess (Baird et al, 1994;Lyche & Jensen, 1997).…”

“…Organisms may be found in the alveolar spaces, alveolar macrophages, and capillary endothelial cells. Giemsa, hematoxylin-eosin, and eosin-methylene blue stains may show crescentshaped tachyzoites (Campagna, 1997;Baird et al. 1994).…”

Histologic Findings and Comparison with Sputum Smears in Pulmonary Aspiration of Vegetable Particles in Syringomyelia

“…9,10 Apart from this, the retention of vegetable remnants in the bronchial tree may be responsible for the presence of certain symptoms of pulmonary superinfection. 11,12 Due to the morphologic characteristics of the vegetable tissues in the pulmonary parenchyma, some elements may originate parasite-like structures in histologic sections, necessitating a differential diagnosis with pulmonary parasitosis 13 and certain arthropods, such as Armillifer armillatus, and worms, such as Ascaris lumbricoides.…”