Cystic Lesion
Mostrando 37-48 de 51 artigos, teses e dissertações.
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37. Pneumoencephaly following lumbar puncture in association with an ethmoidal osteoma and porencephalic cyst
A 50‐year‐old woman developed pneumoencephaly following a CSF examination for evaluation of dysequilibrium. Previous investigations had demonstrated a number of high signal T2 lesions on MRI of the brain. In addition, there was what was thought to be an asymptomatic cystic lesion in the left frontal lobe communicating with the lateral ventricle. After th
BMJ Group.
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38. Lymphoepithelial cyst of the pancreas.
A rare case of lymphoepithelial cyst of the pancreas is reported. Microscopically the cyst content consisted of keratinous material and the walls were lined by mature squamous epithelium surrounded by dense lymphoid tissue. Immunohistochemistry showed diffuse reactivity for CD20 and CD3 in the lymphoid tissue and uniform positivity for cytokeratins in the sq
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39. Cystadenomas of the pancreas: is enucleation an adequate operation?
OBJECTIVE: The objective was to determine whether surgical enucleation of mucinous cystadenoma of the pancreas is a safe and adequate operation. SUMMARY BACKGROUND DATA: Mucinous cystadenomas of the pancreas are premalignant cystic lesions. Resection is the preferred treatment but often requires a pancreatoduodenectomy or a distal pancreatectomy with or with
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40. Bone infection caused by debaryomyces hansenii in a normal host: a case report.
Debaryomyces hansenii was isolated from a cystic lesion in the distal tibia of a healthy 23-year-old woman. Ascospores were demonstrated when the organism was incubated at 25 but not at 30 degrees C. Electron microscopy was necessary to demonstrate the warty surface of the ascospore wall. Growth was inhibited in vitro by low concentrations of amphotericin B,
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41. Invasion of cranial nerves by salivary cylindroma: four cases treated by radiotherapy
Four cases of adenoid cystic carcinoma (cylindroma) of accessory salivary tissue are described, and the diagnostic difficulties experienced are emphasized. The tumour infiltrates cranial and other nerves and may invade the central nervous system by this route. It is highly malignant and may metastasize widely both by haematogenous and lymphatic pathways. The
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42. Sudden death due to a glial cyst of the pineal gland.
Asymptomatic cysts of the pineal gland are found frequently by radiological examination of the brain or at postmortem examination. Symptomatic cysts are rare, and may require surgical intervention. Sudden death due to a cystic lesion of the pineal gland is very rare. A case of a 22 year old man who collapsed and died unexpectedly is reported. Postmortem exam
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43. Chloride secretory response of cystic fibrosis human airway epithelia. Preservation of calcium but not protein kinase C- and A-dependent mechanisms.
Because the defect in Cl- secretion exhibited by cystic fibrosis (CF) epithelia reflects regulatory rather than conductive abnormalities of an apical membrane Cl- channel, we investigated the role of different regulatory pathways in the activation of Cl- secretion in freshly excised normal and CF nasal epithelia mounted in Ussing chambers. A beta agonist (is
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44. Spontaneous regression of renal cell carcinoma: a pitfall in diagnosis of renal lesions.
Two cases of renal cell carcinoma, both of which underwent extensive spontaneous regression, are reported. The first occurred in a 56 year old man, forming a well circumscribed renal cortical nodule which contained only very occasional foci of viable renal cell carcinoma with areas of hyalinisation and calcification, and with metaplastic ossification. The se
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45. Trifluorothymidine versus adenine arabinoside in the treatment of herpes simplex keratitis.
Trifluorothymidine (TFT) and adenine arabinoside (ara-A) are effective antiviral drugs with a very low toxicity for the cornea. In our study no difference between these 2 drugs in antiviral activity was noted. The average healing time for TFT was 11-14 days and for ara-A 10-54 days. These data differ markedly from those of other studies. This was the result
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46. Development and role of retinal glia in regeneration of ganglion cells following retinal injury.
AIMS/BACKGROUND: Recent observations have shown that the glial scar resulting from a surgical lesion of the immature retina differs from elsewhere in the central nervous system, in that it permits the through growth and reconnection of regenerating axons. This study in the opossum examines in detail the development and reaction to injury of retinal glia at d
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47. Function and structure in the diphenylamine-exposed kidney.
Standard micropuncture and microdissection techniques were used to examine the function and structure of nephrons in rats whose kidneys were made cystic by dietary exposure to diphenylamine. Heterogeneity characterized the lesion, with dilation and frank cyst formation occurring in 5-30% of nephrons. Elevated intraluminal hydrostatic pressures, occurring in
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48. The immunoglobulin G subclass composition of immune complexes in cystic fibrosis. Implications for the pathogenesis of the Pseudomonas lung lesion.
It has been shown that pulmonary macrophage (PM) phagocytosis of Pseudomonas aeruginosa (PA) is inhibited in the presence of serum from cystic fibrosis (CF) patients colonized by Pseudomonas, and that these sera contain high concentrations of IgG2 antibodies. The goal of these studies was to investigate the role that IgG2-containing immune complexes (IC) pla