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A radioaerosol clearance test was used to detect lung injury in 12 patients with acquired immune deficiency syndrome (AIDS) and Pneumocystis carinii pneumonia documented by bronchoscopy. The clearance of 99mTc-DTPA was elevated over most regions of interest in all of these patients. In each of 7 subjects who responded to trimethoprim-sulfamethoxazole(More)
A special class of mutually inhibitory networks is analyzed, and parameters for reliable K-winner performance are presented. The network dynamics are modeled using interactive activation, and results are compared with the sigmoid model. For equal external inputs, network parameters that select the units with the larger initial activations (the network(More)
Benign cystic teratomas of the ovary and anterior mediastinum are rarely complicated by rupture into an adjacent body cavity. Such rupture, however, is usually associated with life-threatening serositis and effusion. This report presents the cytologic findings in such an effusion, which in this case followed traumatic rupture of an anterior mediastinal(More)
Unilamellar liposomes of an average diameter of 0.05 micron formed by sonication of dipalmitoylphosphatidylcholine associate in vitro with the large aggregate forms of natural surfactant. The liposomal-surfactant aggregates are stable and previously associated liposomes are not released from the aggregates by the addition of more liposomes. Radiolabeled(More)
Morphologic and morphometric studies were carried out on eight cases of pure and mixed colloid carcinoma of the breast initially diagnosed by fine needle aspiration (FNA). Key morphologic features included (1) cellular smears, (2) single cells, loose aggregates and cohesive groups of cells bathed in a mucinous background, (3) single cells displaying nuclear(More)
OBJECTIVES To present a clinicocytopathologic correlation of an atypical case of cat scratch disease (CSD) involving retroperitoneal lymph nodes, with emphasis on communication between service teams for managing lymphadenopathy of unknown origin. We consider clinical and cytologic differential diagnoses and review the literature on atypical cases of CSD,(More)
A case of angiomatoid malignant fibrous histiocytoma was studied by fine-needle aspiration biopsy and routine histologic methods. Smears from aspirated material consisted of numerous large loose cellular aggregates with occasional single cells. Histiocytelike cells and lymphocytes were the prominent cell types with lesser numbers of spindle-shaped,(More)
Pulmonary surfactant (PS) is capable of lowering surface tension at an air-water interface to less than 10 dynes/cm. This property of PS is believed to be important for normal lung function. We tested the detergent Tween 20, which cannot lower surface tension at an air-water interface to less than 25 dynes/cm, for its ability to promote reasonable gas(More)
BACKGROUND Epithelioid hemangioendothelioma (EHE) is an uncommon vascular soft-tissue tumor. Five cases of EHE in body fluids have been documented in the literature, all of them occurring in pleural effusions. This is the first description of cytomorphological features of EHE cells in ascitic fluid, accompanied by corresponding histopathological findings,(More)