PubMed Health⌕ Search

Biomedical subjects

D H Cresson

Publications and source records attributed to D H Cresson.

9 recordsLinked to original sources
PubMed1992

The importance of the eosinophil in head and neck cancer.

In a previous study, we found tumor-associated tissue eosinophilia (TATE) to be a favorable prognostic indicator for squamous cell carcinoma of the head and neck (p less than 0.05). The present expanded study was undertaken to confirm this finding. The pathology of 120 head and neck tumors was examined for histologic features suggestive of poor prognosis. Ten descriptive histopathologic variables, including two malignancy grading scales, were correlated with DNA flow cytometric data and clinical outcome. No correlation was found between the malignancy grading scales and DNA flow cytometric data or clinical outcome. The present expanded study confirmed with greater statistical significance (p less than 0.001) that high-grade TATE is a favorable prognostic indicator for head and neck cancer. Furthermore, high-grade TATE was associated with the absence of distant metastasis (p less than 0.05). Using a stepwise logistic regression analysis of the clinicopathologic variables in the study, high-grade TATE was the most influential variable affecting clinical outcome, followed by border, stage, and perineural invasion. We conclude that the grade of TATE is a significant prognostic indicator for head and neck cancer. The significance and possible role of the eosinophil in the tumor-host interaction are discussed.

Eosinophils↗
PubMed1990

Metastasizing pleomorphic adenoma with myoepithelial cell predominance.

The biological behavior of pleomorphic adenomas (mixed tumors) of salivary gland origin is complex. Tumors with benign histologic features may exhibit recurrence and locally aggressive behavior especially after incomplete excision. A small percentage of pleomorphic adenomas have obvious malignant components in epithelial or in both epithelial and mesenchymal components and can metastasize. There are also rare case reports which appear to document typical pleomorphic adenomas of salivary gland with histologically identical visceral and lymph node metastases. Recently myoepithelial cell proliferation has been identified as a possible predictor of aggressive clinical behavior in otherwise histologically benign pleomorphic adenomas. We report such a parotid gland lesion with local recurrence and retroperitoneal spread. DNA-flow cytometry of cells from the paraffin-embedded primary and metastasis showed similar aneuploid populations. Aneuploidy appeared to reflect the malignant potential of this particular pleomorphic adenoma and suggests that DNA-flow cytometry of salivary gland tumors may yield important prognostic information.

Adenoma, Pleomorphic↗
PubMed1987

Sarcomatoid carcinoma of the pancreas presenting as gastric carcinoma: clinicopathologic and ultrastructural findings.

The clinicopathologic and ultrastructural features of a sarcomatoid carcinoma of the pancreas presenting initially as gastric carcinoma are described. By light microscopy, the tumor contained cellular patterns similar to those present in tumors of mesenchymal origin. Spindle cell areas arranged in a storiform pattern were present. Ultrastructurally, bundles of cytoplasmic microfilaments were present in the cell cytoplasm and were similar in distribution to those found on fine structural examination in tumors of mesenchymal origin. Rows of desmosomes were found between cells supporting an epithelial origin for this tumor. Following initial therapy, metastatic tumor produced polypoid lesions in the small intestine resulting in recurrent small bowel intussuceptions. Our findings indicate that sarcomatoid carcinoma of the pancreas, by both light and ultrastructural examination, is a heterogenous tumor at the cellular level and may be a cause of repeated intussuception when intraluminal compromise occurs.

Aged↗
PubMed1987

DNA flow cytometry as a prognostic indicator in head and neck cancer.

The prognostic significance of deoxyribonucleic acid (DNA) flow cytometry has been investigated for many solid tumors, but few data have been accumulated for squamous cell carcinomas of the head and neck. To our knowledge, we report the largest number of patients (69) with head and neck primary carcinomas to be studied by DNA flow cytometry. In the first part of this study, we reviewed 109 consecutive patients with laryngeal or hypopharyngeal primary carcinomas which were treated at North Carolina Memorial Hospital during the period of 1981 to 1984. The final analysis comprised 139 DNA histograms (mean coefficient of variation: 8.02) on paraffin-embedded specimens from 48 patients. Of the 48 patients with primary carcinomas, 24 had glottic, 18 had supraglottic, and 6 had carcinomas from the piriform sinus. Patients had follow-up for a minimum of 12 months, with a mean follow-up period of 23 months. Twenty-three of the 48 primary carcinomas (48%) were clearly aneuploid, and the remaining 52% were tetraploid (22%) or diploid (30%). We have concluded that patients with clearly aneuploid primary carcinomas had significantly better prognoses than those with diploid tumors (p = 0.008). High DNA amounts (greater than 40% of cells beyond the diploid peak, DNA G1G0) also correlated with a favorable prognosis when compared with low DNA amounts (p less than 0.01), and this remained significant when the clinical outcome was adjusted for staging of the primary site (T), nodal status, and stage of disease. Ploidy was the most significant prognostic variable for the laryngeal group of patients. In the second part of the study, twenty-one patients with oral cavity squamous cell carcinomas were studied in a similar fashion as the group with laryngeal carcinomas. In this group, a low DNA amount, with 40% as the cutoff point, was associated with a favorable prognosis (p = 0.024), and this remained significant while controlling for T, nodal status, and stage of disease. Numbers were too small to permit evaluation of the impact of ploidy in this group, but there was a slight trend toward aneuploidy and tetraploidy, correlating with a poor treatment outcome (p = 0.228). DNA amount was the most significant prognostic variable for the group of patients with oral cavity carcinomas.(ABSTRACT TRUNCATED AT 400 WORDS)

Adult↗
PubMed1987

The prognostic significance of stromal eosinophilia in head and neck cancer.

The pathologies of 82 head and neck tumors were examined for histologic features suggestive of poor prognoses. Twelve descriptive histopathologic variables, including two grading scales for malignant tumors, were correlated with DNA flow cytometric data and clinical outcome. We found no correlation between the grading scales and DNA flow cytometric data or clinical outcome. Only one of the histopathologic variables--stromal eosinophilia--was found to significantly correlate with favorable outcome (p = .018). Stromal eosinophilia may be an important new prognostic indicator for head and neck cancer.

Adult↗
PubMed1986

In vitro inhibition of human sarcoma cells' invasive ability by bis(5-amidino-2-benzimidazolyl)methane--a novel esteroprotease inhibitor.

Bis(5-amidino-2-benzimidazolyl)methane (BABIM) is a synthetic aromatic amidine compound which has a number of important biochemical effects, including inhibition of a family of esteroproteases (trypsin, urokinase, plasmin) previously linked to the complex process of tumor invasion. Previous work has suggested that exogenous natural protease inhibitors can block invasion of tumor cells across basement membranes (BM) in vitro. The authors studied the effect of BABIM on the human cell line HT-1080 with the use of a quantitative in vitro amnion invasion assay system. They have verified the ability of these cells to grow in nude mice and metastasize via the lymphatics or blood vessels on the basis of the route of administration of the inoculum. Cells which were able to actively cross the entire BM were trapped on filters and counted by both brightfield microscopy and by beta scintillation counting of cells whose DNA was labeled with tritiated thymidine. In agreement with either counting technique, BABIM, at a concentration of 10(-4) M, significantly inhibited invasion (P less than 0.005) over the 7-day course of the experiments. Under these conditions, the inhibitor was nontoxic and did not alter the attachment of the cells to the amniotic membrane. Furthermore, a highly significant inhibition of invasion (P less than 0.001) was also demonstrated across a variation in molar concentration of BABIM of more than 2 orders of magnitude. Most remarkably, cells were initially inhibited in their ability to invade in the presence of between 10(-9) and 10(-3) M BABIM. Measurement of Type IV specific collagenase in media from these cells shows a significant inhibition of activity in the presence of BABIM. These results suggest two, not necessarily exclusive, alternative interpretations: first, that inhibition of the proteolytic steps along the pathway of activation of basement membrane degrading enzymes results in inhibition of invasion; second, that arginine directed esteroproteases may work in concert with cellular collagenolytic metalloproteinases in the process of invasion by human tumor cells through native matrix barriers.

Amnion↗
PubMed1985

Chronic lymphocytic leukemia presenting as an anal mass.

A middle-aged man sought medical attention because of a large perianal mass. The lesion was caused by a massive subepithelial infiltrate of small neoplastic lymphocytes representing a localized tissue manifestation of chronic lymphocytic leukemia. This report emphasizes the possibility of leukemia/lymphomas occurring at the anus, to stress that leukemia should be considered in the differential diagnosis of patients presenting with perianal disease in the presence of lymphadenopathy and constitutional symptoms.

Anal Canal↗
PubMed1984

Pulmonary eosinophilic granuloma. 25-year follow-up.

Pulmonary eosinophilic granuloma is an uncommon disease of unknown origin with characteristic pathologic features. Reports of long-term follow-up in this disorder are rare in the literature. We report the course of a patient followed at our institution from diagnostic lung biopsy through autopsy over 25 yrs. His case represents the longest follow-up reported to our knowledge and demonstrates that (1) despite apparent clinical stability, ongoing injury may result in gradually progressive respiratory impairment and death after many years, and (2) despite changes diagnostic of pulmonary eosinophilic granuloma at lung biopsy early in the course, autopsy may reveal only end-stage fibrosis with honeycombing.

Adult↗