Abstract：
CONTEXT:CpG island hypermethylation is attracting attention because of its importance as a tumor marker and its potential mechanism for the development of human cancers. Extrahepatic cholangiocarcinoma has been poorly investigated with respect to CpG island hypermethylation, and the number of genes known to be methylated in extrahepatic cholangiocarcinomas is fewer than 20. OBJECTIVE:To generate methylation profiles of 24 CpG island loci in extrahepatic cholangiocarcinomas, to correlate methylation findings with clinicopathologic findings, and to compare these findings with those of intrahepatic cholangiocarcinomas. DESIGN:Sixty-three extrahepatic cholangiocarcinomas and 48 intrahepatic cholangiocarcinomas were investigated for hypermethylation in 24 CpG island loci by using methylation-specific polymerase chain reaction. RESULTS:A total of 61 (96.8%) of 63 extrahepatic cholangiocarcinomas showed hypermethylation in at least one of the examined loci, and a high methylation frequency was seen in HOXA1 (95.2%), HPP1 (69.8%), and NEUROG1 (61.9%). The number of methylated CpG island loci was greater in extrahepatic cholangiocarcinomas with nodal metastasis than in those without nodal metastasis (P = .047), and hypermethylation of TIG1 was closely associated with nodal metastasis of extrahepatic cholangiocarcinomas (P = .007). CDH1 and NEUROG1 were more frequently methylated in extrahepatic cholangiocarcinoma than in intrahepatic cholangiocarcinoma, whereas CHFR, GSTP1, IGF2, MGMT, MINT31, p14, and RBP1 were more frequently methylated in intrahepatic cholangiocarcinoma: the differences was statistically significant (P < .05). CONCLUSIONS:A close relationship exists between CpG island hypermethylation and nodal metastasis of extrahepatic cholangiocarcinomas. Methylation profiles of extrahepatic cholangiocarcinomas are somewhat similar to but distinct from those of intrahepatic cholangiocarcinomas.
journal_name
Arch Pathol Lab Medjournal_title
Archives of pathology & laboratory medicineauthors
Kim BH,Cho NY,Choi M,Lee S,Jang JJ,Kang GHdoi
10.1043/1543-2165(2007)131[923:MPOMCI]2.0.CO;2subject
Has Abstractpub_date
2007-06-01 00:00:00pages
923-30issue
6eissn
0003-9985issn
1543-2165pii
2006-0615-OAR1journal_volume
131pub_type
杂志文章abstract：:By means of an electrofocusing technique, the serum specimens of pregnant women routinely revealed three bands of alkaline phosphatase (ALP) that were released by placental syncytiotrophoblast, germ cell (ovary), and fetal intestine at pl of 4.73, 4.65, and 4.55, respectively. When defining reference ranges for ostens...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Lymph node involvement by histiocytosis X is usually secondary to nearby bone or skin lesions. A patient with histiocytosis X confined to lymph nodes is rarely seen; however, we studied two such persons. In each, a lymph node biopsy was performed because the clinical aspects caused us to suspect neoplastic disease. ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-02-01 00:00:00
abstract：:A 55-year-old woman developed symptoms suggestive of hepatitis 12 weeks after first receiving methyldopa for hypertension. Liver biopsy showed chronic aggressive hepatitis with subacute hepatic necrosis. Methyldopa was discontinued, but after exhibiting transient clinical improvement, the patient's condition progressi...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1976-03-01 00:00:00
abstract：CONTEXT:Primary intraosseous squamous cell carcinoma is a rare form of squamous cell carcinoma, arising within the jaws. OBJECTIVE:To clarify the clinicopathologic and behavioral spectrum of primary intraosseous squamous cell carcinoma. DESIGN:The clinical and pathologic findings, treatment, and follow-up data of 39 ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165-133.11.1834
更新日期：2009-11-01 00:00:00
abstract：:We recently encountered an elderly female patient with multiple, rapidly growing vascular lesions on her forearm. Histologic examination and immunoperoxidase studies were performed to identify cells present within the lesions. The growths proved to be intravascular papillary endothelial hyperplasia. Immunohistochemica...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：:Langerhans cell histiocytosis (LCH) is a neoplastic proliferation of Langerhans cells that occurs in a range of nodal and extranodal sites. Scattered reports of LCH within the thymus exist, typically among children within the setting of multifocal, multisystem disease. Rare cases of isolated LCH involving the thymus h...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.1043/1543-2165(2003)127
更新日期：2003-07-01 00:00:00
abstract：:Normal salivary glands and 55 salivary gland tumors were examined by immunostaining (immunoperoxidase [IMP] and immunofluorescence [IMF]) to identify myoepithelial cells (MCs) and speculate on their role in the histogenesis of the tumors. The classic (C) MCs of normal salivary glands stained by IMP with antibodies to ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1985-02-01 00:00:00
abstract：CONTEXT:The pancreas gives rise to an array of distinct neoplasms that can be solid, cystic, or intraductal and can recapitulate the various lines of differentiation present in the normal gland. OBJECTIVE:To develop an algorithmic approach to the diagnosis of pancreatic neoplasms that simplifies their pathologic evalu...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.1043/1543-2165-133.3.454
更新日期：2009-03-01 00:00:00
abstract：:Lymph node biopsy specimens from 16 intravenous drug abusers with persistent generalized lymphadenopathy were evaluated by immunohistochemical methods using a panel of antisera to detect different cell populations. The 11 cases that we tested on cryostat sections showed an increased number of Leu-2a-positive cells (cy...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1985-11-01 00:00:00
abstract：:We report three examples of either localized or segmental adenomyomatous hyperplasia of the gallbladder in association with cholelithiasis. Two patients were women, 58 and 81 years of age, and the third was a 62-year-old man. The finding of perineural invasion by epithelial ductal structures in two cases and of perine...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
abstract：:A modification to a rapid hot methenamine silver stain is described that shortens the silver staining step of the procedure to one to five minutes. It also eliminates the requirement to manipulate hot solutions. ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1986-09-01 00:00:00
abstract：:The spirochete, Treponema pallidum, the causative agent of syphilis, has been successfully localized in formaldehydefixed and paraffin-embedded tissue sections using rabbit anti-T pallidum antiserum with two immunoperoxidase techniques. These techniques, the indirect peroxidase-labeled antibody method and the peroxida...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1979-03-01 00:00:00
abstract：CONTEXT:- Early diagnosis of malignant mesothelioma (MM) is urgently needed because life expectancies and treatment options are limited in advanced stages of the disease. Malignant mesothelioma often presents with recurrent hemorrhagic or inflammatory effusions, which might mask the incipient stages of the disease and ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2018-0020-RA
更新日期：2018-08-01 00:00:00
abstract：CONTEXT:Although much has been said and written about medical error and about error in pathology since the publication of the Institute of Medicine's report on medical error in 1999, precise definitions of what constitutes error in anatomic pathology do not exist for the specialty. Without better definitions, it is imp...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2006)130[604:DEIAP]2.0.CO;2
更新日期：2006-05-01 00:00:00
abstract：CONTEXT:Recent advances in laboratory testing technology have resulted in a rapidly increasing number of test systems targeted for physician office, point-of-care, and home health care settings. With enhanced error detection mechanisms and unitized reagents, these new systems simplify the testing process and the assess...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2000)124<1122:QCOTSW>2.0.CO;2
更新日期：2000-08-01 00:00:00
abstract：:Herein is presented a detailed description of the materials and methods employed in the conduct of an ongoing system for the independent evaluation (or testing) of individual sophomore medical students, as part of a major sophomore course in anatomic pathology. The academic environment and the advantages and disadvant...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1986-11-01 00:00:00
abstract：:Pulmonary adenocarcinoma is one of the most common types of lung cancer. Traditionally, adenocarcinomas have been divided based on their degree of resemblance to their parent tissues into 3 histopathologic types: well, moderately, and poorly differentiated. In the majority of cases, this schema is sufficient to catego...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.1043/1543-2165(2006)130[958:PATESO]2.0.CO;2
更新日期：2006-07-01 00:00:00
abstract：OBJECTIVE:To compare the anion gap (calculated as the sodium concentration minus the sum of the chloride and total carbon dioxide concentrations) reference interval for three automated chemistry analyzers. DESIGN:We measured serum sodium, chloride, and total carbon dioxide on aliquoted specimens using three commercial...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1997-06-01 00:00:00
abstract：CONTEXT.—:The approval of pembrolizumab for treatment of patients with microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR) advanced cancers has led to increased requests for MSI and/or MMR immunoperoxidase (IPOX) testing. Diagnoses for patients with advanced-stage cancer are frequently made from...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2019-0398-OA
更新日期：2020-03-30 00:00:00
abstract：CONTEXT.—:Atypical ductal hyperplasia (ADH) is a challenging diagnosis defined by cytologic and architectural features that carries an increased risk of subsequent carcinoma when diagnosed in isolation. In addition, ADH may secondarily involve benign breast lesions, wherein it carries variable clinical significance. O...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2018-0221-RA
更新日期：2018-10-01 00:00:00
abstract：CONTEXT:Blood loss from laboratory testing (BLLT) can be significant in hospitalized patients. It is a common practice to draw full large-volume tubes of blood from adults. OBJECTIVE:To determine whether BLLT occurred when a small-volume (pediatric) blood collection tube (SVT) was substituted for each large-volume blo...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165-132.12.1916
更新日期：2008-12-01 00:00:00
abstract：:We describe a case of a 2-year-old girl with an unusual finding of amorphous hematoxyphilic substance in the pulmonary and myocardial vascular lumina. The patient had a prolonged history of intestinal obstruction necessitating extended periods of total parenteral nutrition. The patient terminally had hypercalcemia wit...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1993-12-01 00:00:00
abstract：CONTEXT:The correlation of the diagnosis made at intraoperative consultation (IC) with the final diagnosis is one of the cornerstones of quality assurance in the anatomic pathology laboratory. OBJECTIVE:To review correlation of IC diagnoses with final diagnoses during a 1-year period in a regionalized, multisite hospi...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2008)132[29:IFDCRT]2.0.CO;2
更新日期：2008-01-01 00:00:00
abstract：:Epithelioid sarcomas are rare, mesenchymal tumors of unknown histogenesis and display multidirectional differentiation, which is predominantly epithelial. They have no normal cellular counterpart and differ from both synovial sarcoma and carcinoma. They account for less than 1% of all soft tissue sarcomas and are usua...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.1043/1543-2165-133.5.814
更新日期：2009-05-01 00:00:00
abstract：OBJECTIVE:To investigate the association of a variety of cell surface and cytoplasmic antigens in small cell carcinoma of the lung with long-term survival (greater than 2 years). DESIGN:Using immunohistochemical analysis of small cell carcinomas, the tissue expression of corticotropin, bcl-2, p-glycoprotein, cathepsin...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：OBJECTIVES:To assess the value of receiver operating characteristic curves (ROCs) as a tool for improvement in the evaluation of cervicovaginal smear results. DESIGN:We reviewed the results of cervicovaginal smear interpretation for 1 year by 10 different cytopathologists working in the same laboratory (total number o...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1997-09-01 00:00:00
abstract：OBJECTIVE:Sodium polystyrene sulfonate (kayexalate) is a cation-exchange resin given enterally for the treatment of hyperkalemia. Aspiration of this material is a rare occurrence, but when visualized in the alveolus, it has a characteristic microscopic appearance that is virtually diagnostic. In two cases, recognition ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1996-10-01 00:00:00
abstract：CONTEXT:Angiosarcomas are rare malignancies that commonly arise in the head and neck. No definitive precursor lesion or etiological link between hemangiomas and angiosarcoma has been postulated. Evidence at the cell culture level suggests that loss of heterozygosity of 13q might be involved in tumorigenesis of endothel...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2006)130[1184:ALODTS]2.0.CO;2
更新日期：2006-08-01 00:00:00
abstract：:We report the case of a primary breast rhabdomyosarcoma in a 51-year-old white woman. The tumor occupied the upper outer quadrant of the right breast. There was no association with the underlying pectoral muscle, and the patient was free of any other benign or malignant neoplastic processes outside the breast. Microsc...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1998-08-01 00:00:00
abstract：CONTEXT:Distinct human polyomavirus genotypes cause different diseases in patients with renal transplants: BK virus (BKV) causes tubulointerstitial nephritis and ureteral stenosis, whereas both JC virus (JCV) and BKV are responsible for hemorrhagic cystitis. These findings could result from a selective infection of kid...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2005)129<69:KAUTPI>2.0.CO;2
更新日期：2005-01-01 00:00:00
