Jaclyn Holden

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Immunohistochemical techniques were used to determine the intermediate filament content of normal arachnoidal cells, meningiomas (including the so-called hemangiopericytoma of the meninges), soft tissue hemangiopericytoma, and the normal pericyte. Arachnoid granulations and all types of meningioma stained similarly: positive for vimentin and variably(More)
The aim of this study was to assess the role of MIB-1 in the classification of cervical squamous lesions and to compare it with a novel proliferation marker, topoisomerase II alpha (TP II alpha). We classified 46 archival uterine cervical cases into 6 groups: normal (n = 3); human papillomavirus (n = 15); mild (n = 10), moderate (n = 7), and severe (n = 6)(More)
Using formalin-fixed, paraffin-embedded tissue and commercial antisera, we evaluated the usefulness of immunohistochemical staining for carcinoembryonic antigen (CEA) and keratin in the diagnosis of malignant mesothelioma. All 18 adenocarcinomas of lung examined stained for CEA, usually strongly, while only eight of 22 mesotheliomas stained for CEA and the(More)
It has been suggested that because chrysotile asbestos forms asbestos bodies poorly, use of the traditional histologic requirements (diffuse interstitial fibrosis plus asbestos bodies) for the diagnosis of asbestosis, may lead to an underdiagnosis of this condition in workers exposed only to chrysotile. We examined lungs from 25 chrysotile miners with(More)
No reliable pathologic criteria have been identified that predict clinical behavior in adrenal and extra-adrenal pheochromocytomas (PHEOs). Reliable prognostic markers for the prediction of clinical outcome are needed to assign optimal treatment for potentially malignant tumors. In this report, we evaluated several molecular markers (topoisomerase II alpha,(More)
Prediction of biologic behavior in adrenocortical neoplasms is difficult because of the lack of availability of reliable clinical, biochemical, and pathologic prognostic markers. Reliable objective markers predictive of clinical outcome in adrenocortical neoplasms are needed to assign optimal treatment of potentially malignant tumors. In the current(More)
Encephalitozoon hellem is a recently described microsporidian associated with an expanding spectrum of clinical presentations in patients with the acquired immunodeficiency syndrome (AIDS). It is morphologically similar to Encephalitozoon cuniculi, a microsporidian infection of mammals and some avians, and their differentiation rests on biochemical and(More)
Recurrent respiratory papillomatosis (RRP) has a juvenile aggressive form and an adult more indolent form. Most cases of RRP are cytologically benign; however, some undergo malignant transformation. At present, there are no known markers that help identify patients at risk for aggressive disease. We investigated by immunohistochemistry expressions of(More)
BACKGROUND B-lymphoblastic leukemias (B-LBL) with combined IGH/BCL2 and MYC rearrangement are rare and their clinical, cytogenetic and immunophenotypic features are not well characterized. Here, we describe a case of a 61-year-old woman with B-LBL associated with these cytogenetic alterations and present a review of the literature of this disease. METHODS(More)
Malignant mesenchymal neoplasms of the pancreas are rare and malignant islet cell tumors with sarcomatous dedifferentiation are rarer still. We present a case of malignant islet cell tumor with sarcomatous differentiation, which to our knowledge is only the second reported case showing such a combination of morphologic features. Clinically, the neoplasm was(More)
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