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Involucrin is a soluble protein precursor of the cross-linked envelope present in the submembranous zone of human stratum corneum, and subsequently demonstrated in stratified squamous epithelia. The immunoperoxidase technique was used to assess the distribution of involucrin in 107 normal and 318 abnormal tissues. With few exceptions, involucrin was(More)
Keratin profiles of exfoliated mesothelial and adenocarcinoma cells were determined using antisera to different molecular weight keratins (45, 46, 55, 63 kdaltons) and the immunoperoxidase technic. Most metastatic adenocarcinomas in effusions stained for low (45, 46 kdaltons) and intermediate (55 kdaltons) molecular weight keratins but were negative for 63(More)
Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is recognized as a preneoplastic condition by the World Health Organization. We reviewed our experience with 30 patients and performed a systematic review of the English literature to collect best evidence on the clinical features and disease course in 169 additional patients. Some(More)
PURPOSE Follicular variant of papillary thyroid carcinoma (FVPTC) is currently treated like conventional papillary thyroid carcinoma (cPTC). Recent reports indicate that encapsulated FVPTC behaves like follicular adenomas, while infiltrative FVPTC behaves like cPTC. This raises the possibility that histology and/or mutation status might help personalize(More)
The differential diagnosis of perineal biopsies can include squamous intraepithelial lesions, extramammary Paget's disease, and melanoma. Less frequently two of these lesions coexist. BD ProEx C is a recently developed immunoassay that targets expression of two genes shown to be associated with cervical cancer. Immunostaining for ProEx C has been validated(More)
p16, Ki-67, and BD ProExC (TriPath Imaging, Inc., Burlington, NC) have each been shown to be helpful adjuncts in the diagnosis and grading of human papillomavirus-associated cervical intraepithelial neoplasia. However, no clear guidelines are available regarding their use in routine practice. This study was designed to evaluate the efficacy of the 3 stains(More)
OBJECTIVE To compare clinical and histologic features between fallopian tube cancers in women with germline BRCA mutations and sporadic cases. METHODS Twenty-eight patients with fallopian tube cancer had BRCA mutation testing using multiplex polymerase chain reaction and protein truncation testing. Histologic slides were reviewed by 2 pathologists, and(More)
OBJECTIVE Lynch syndrome (LS) is characterized by a high lifetime incidence of colorectal cancer and gynecologic malignancies such as endometrial and ovarian cancer. Identification of LS families is important as it allows for heightened cancer screening which decreases colorectal cancer mortality. The original 1996 Bethesda guidelines included two(More)
BD ProEx C (ProEx C) is a recently developed immunocytochemical assay that targets the expression of topoisomerase II-alpha and minichromosome maintenance protein-2, 2 genes shown to be overexpressed in cervical cancers. Recent studies validated this reagent in liquid-based cytology specimens and suggested its usefulness as an adjunct in the diagnosis of(More)
Immunoperoxidase technics were used to identify keratin and carcinoembryonic antigen (CEA) in exfoliated cells of fine-needle aspirates and body cavity fluids. Staining was evaluated in cytocentrifuge preparations from 27 malignant and 30 benign cytologic specimens. Most reactive mesothelial cell preparations were strongly positive for keratin and negative(More)