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K S Crowley

Publications and source records attributed to K S Crowley.

5 recordsLinked to original sources
PubMed1988

Diffuse histiocytic lymphoma: the 20-year experience of an Australian teaching hospital.

There is a paucity of information regarding the natural history and treatment outcome of diffuse histiocytic lymphoma (DHL) in Australia. Case records from 80 patients treated for DHL at the Royal Adelaide Hospital between 1965 and 1985 were reviewed to determine treatment outcome and prognostic information. Pathological review of biopsy specimens confirmed the correct diagnosis in 78 patients. The Ann Arbor staging criteria were unsatisfactory for prognostic purposes. We identified three prognostic groups: Localised disease (82% five-year survival), Advanced disease marrow negative (36% five-year survival), and Advanced disease marrow positive (11% five-year survival). An elevated plasma lactate dehydrogenase (LDH) and calcium (Ca++) predicted a poorer outcome; no patient with a LDH greater than 500 IU achieved longterm survival (p less than 0.001). Survival was identical for patients reclassified histologically as intermediate grade or high grade (Working Formulation). Localised disease was associated with a good prognosis (82% five-year survival) regardless of treatment modality. The outcome of patients with advanced disease has markedly improved over the last two decades, particularly with the introduction of combination chemotherapy containing doxorubicin in 1974 (p less than 0.005). Using these regimens, complete remission was achieved in 65% of patients, with a 39% five-year survival.

Adult↗
PubMed1988

Use of morphometry in cytological preparations for diagnosing follicular non-Hodgkin's lymphomas.

Morphometric techniques were applied to cytocentrifuge smears from 27 patients with histologically confirmed follicular non-Hodgkin's lymphoma to determine the usefulness of this method in diagnosis. Analysis of quantitative data confirmed that most subtypes were classified correctly on the basis of the proportion of large cells, small cleaved, and large non-cleaved cells, and nuclear, nucleolar, and cytoplasmic features. Morphometry is a more objective and reproducible technique than manual cell counting methods, and the use of cytocentrifuge smears has several advantages compared with conventional histological sectioning. Data derived with the aid of morphometry may be of value in follow up clinicopathological studies.

Cell Count↗
PubMed1987

Does the interchromatin compartment contain actin?

Transient blockage of transcription in chick liver by alpha-amanitin results in a temporary clearing of nucleoplasmic regions in affected nuclei and concurrent exposure in situ of a discrete interchromatin framework. This is accompanied by sharp decreases in total nuclear RNA (approximately 28%) and nonhistone protein content (approximately 18%). Electrophoretic analysis of matrix fraction proteins from such highly denuded nuclei shows a marked relative enrichment in actin and RNP-derived polypeptides. These observations suggest that actin is a real constituent of the interchromatin region and supports various reports that this protein may have a basic structural role in nuclei.

Actins↗
PubMed1983

Lymph node biopsy.

The lymph node biopsy may well be the most important surgical operation that the patient ever has. Recent advances in the immunological characterization of human lymphocyte sub-populations, and the use of selected cytochemistry techniques have enabled increased understanding of the pathogenesis of malignant lymphomas, as well as providing more precise categorization of the cell of origin of many of these tumours. The fact is, however, that the vast majority of diagnoses of lymph node biopsies are made on morphological features observed at light microscopy level. The diagnosis and differential diagnosis of lymphomas, and particularly their distinction from benign conditions, are among the most frequent and most difficult problems in diagnostic histopathology. Whilst many of the principles enumerated in the text apply to all areas of surgical pathology, meticulous attention to detail is essential at all phases in the preparation of a satisfactory lymph node biopsy.

Biopsy↗