Abstract：
CONTEXT:Most gastric gastrointestinal stromal tumors (GISTs) express CD117/c-kit, as do a subset of metastatic melanomas, leading to a diagnostic dilemma in some cases. OBJECTIVE:To further differentiate GISTs from melanoma, we investigated expression of melanoma markers in GISTs using a well-characterized set of gastric lesions on tissue microarrays. DESIGN:Tissue microarrays from paraffin-embedded tissue cores from 38 patients were stained with S100 protein, HMB-45, and Melan-A antibodies. All cases had been previously stained with CD117/c-kit and CD34 antibodies. All were reactive with CD117/c-kit, and 88.2% expressed CD34. RESULTS:S100 protein was focally expressed in 2 (5.3%) of 38 GISTs; these lesions lacked HMB-45 and Melan-A labeling. No tumor labeled with HMB-45, but 4 (10.6%) of 38 cases labeled with Melan-A antibodies. The Melan-A-reactive cases were all S100 negative and CD34 positive. The S100-reactive cases were spindle cell neoplasms, whereas the Melan-A-reactive cases were epithelioid neoplasms (4/9; 44%). An additional 15 standard sections of separate cases of epithelioid GISTs were then labeled with Melan-A, and 5 (33%) of 15 showed at least focal labeling. CONCLUSIONS:Melan-A staining can be encountered in a subset of epithelioid GISTs, a finding that can suggest a differential diagnosis of melanoma. In this series, the Melan-A-reactive cases lacked S100 protein and expressed CD34, both of which would be unlikely in melanoma. As such, a panel approach is best in differentiating epithelioid GISTs from melanoma.
journal_name
Arch Pathol Lab Medjournal_title
Archives of pathology & laboratory medicineauthors
Guler ML,Daniels JA,Abraham SC,Montgomery EAdoi
10.1043/1543-2165(2008)132[1302:EOMAIE]2.0.CO;2subject
Has Abstractpub_date
2008-08-01 00:00:00pages
1302-6issue
8eissn
0003-9985issn
1543-2165pii
2007-0521-OAR1journal_volume
132pub_type
杂志文章abstract：:In this article, we review prostatic lymphomas and discuss the differential diagnosis of high-grade malignant neoplasms of the prostate. We illustrate this with a case of a 46-year-old man seen with lower urinary tract obstruction who had diffuse involvement by a high-grade malignancy on prostate biopsy. Morphologic e...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2014-0276-CC
更新日期：2014-10-01 00:00:00
abstract：:We recently reviewed a skin biopsy specimen obtained from a child with acute monocytic leukemia that demonstrated abundant mycelia present within a keratin plug of a hair follicle, a granulomatous dermal inflammatory infiltrate, and focal dermal invasion by fungi. These histologic findings were suggestive of an invasi...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1989-11-01 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:-Results of the American College of Surgeons Oncology Group Z0011 trial showed that patients with early-stage breast cancer and limited sentinel node metastasis treated with breast conservation and systemic therapy did not benefit from axillary lymph node dissection. Subsequently, most pathology departments hav...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2015-0296-OA
更新日期：2016-08-01 00:00:00
abstract：CONTEXT:Tumors of the head and neck commonly arise from the squamous and respiratory mucosa that lines the nasal and oral cavity, sinuses, pharynx, and larynx. The rate of oropharyngeal cancers diagnosed among Americans younger than 50 years is increasing. Infection of the oropharynx and tonsils by the human papillomav...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/2009-0592-OAR.1
更新日期：2010-12-01 00:00:00
abstract：:A total of 13 gastric papillary adenomas composed of 8 papillary and 5 papillotubular adenomas were examined pathologically and immunohistochemically. They showed a dome-like or pedunculated appearance and were located at the antrum, except for one adenoma. Histologically, the adenoma cells showed atypia in varying de...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1989-09-01 00:00:00
abstract：:Lymphoepithelioma-like carcinomas have been reported outside the nasopharynx in many sites, including the uterine cervix. The association with the Epstein-Barr virus in the latter site is still controversial. To date, Epstein-Barr virus genome has only been demonstrated in Asian patients. We report a case of lymphoepi...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2000)124<0746:LLCOTU>2.0.CO;2
更新日期：2000-05-01 00:00:00
abstract：:Renal solitary fibrous tumors (SFTs) have been reported infrequently. We report a 76-year-old man with a left renal mass that had previously been shown radiographically to be stable, but was now growing. Grossly, the mass measured 12 cm, was poorly circumscribed, and invaded beyond the renal capsule. Approximately 10%...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2006)130[857:MSFTOT]2.0.CO;2
更新日期：2006-06-01 00:00:00
abstract：:Membranoproliferative (mesangio-capillary) glomerulonephritis (MPGN) has been divided into two types: type 1, MPGN with subendothelial deposits; type 2, MPGN with intramembranous dense deposits. Although the types are clinically similar, the light, immunofluorescent, and electron microscopical data differ. The cause i...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1977-09-01 00:00:00
abstract：:The emergence of the acquired immunodeficiency syndrome has wrought changes that have affected not only medicine and science, but many aspects of our social and political structures. In 1983 when it clearly became evident that acquired immunodeficiency syndrome could be transmitted by transfusions of blood components ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1990-03-01 00:00:00
abstract：:We describe the pathomorphologic features of 29 autopsy cases of thorium dioxide-related angiosarcoma (AGS) of the liver. The average (+/- SD) latent period after thorium dioxide injection was 36.2 +/- 5.2 years. Macroscopically, thorium dioxide-related AGS was divided into four types as follows: diffuse micronodular,...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1985-09-01 00:00:00
abstract：CONTEXT:- Detection of variants in hematologic malignancies is increasingly important because of a growing number of variants impacting diagnosis, prognosis, and treatment response, and as potential therapeutic targets. The use of next-generation sequencing technologies to detect variants in hematologic malignancies in...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2016-0547-RA
更新日期：2017-06-01 00:00:00
abstract：:The dramatic rise and equally dramatic fall in the mortality from coronary heart disease in the 20th century is only partly explained. This article reviews the development of our ideas concerning possible pathways other than lipids that might play a role in the development of human atherosclerosis alone or in combinat...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1988-10-01 00:00:00
abstract：:Adult rhabdomyoma is a benign, highly differentiated tumor of skeletal muscle. We observed transverse tubules and triads beside myofilaments in a rhabdomyoma from the submandibular area of a 66-year-old woman. Several types of muscle cells were present. In one, mitochondria abounded; in another, muscle filaments predo...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1981-11-01 00:00:00
abstract：CONTEXT:The immunophenotypic profile of basophils is not yet fully established, and the immunophenotypic changes in chronic myelogenous leukemia are not fully characterized. OBJECTIVE:To establish a comprehensive immunophenotypic spectrum of normal basophils and to assess the range of immunophenotypic aberrations of b...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2008)132[813:ISOBBM]2.0.CO;2
更新日期：2008-05-01 00:00:00
abstract：:The activity of lipoprotein lipase in the vascular bed represents the major pathway by which triglyceride fatty acid is cleared from the plasma and made available to the epripheral tissues. Recent studies on the properties of the enzyme, both solubilized and membrane-bound have provided new information on the regulati...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1977-05-01 00:00:00
abstract：:A patient with a 100-g thymolipoma and myasthenia gravis experienced marked improvement in neuromuscular symptoms following removal of the tumor. Although 60 examples of thymolipoma have been reported, we believe that this is the first example of this tumor associated with myasthenia gravis. The clinical, radiologic, ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：CONTEXT:All Food and Drug Administration-approved methods in the United States for human papillomavirus testing including the Hybrid Capture 2 human papillomavirus assay and the Roche cobas human papillomavirus test are approved for cytology specimens collected into ThinPrep media but not for specimens collected into S...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2015-0027-OA
更新日期：2016-02-01 00:00:00
abstract：OBJECTIVE:This review of heparin-induced thrombocytopenia (HIT), the most frequent and dangerous side effect of heparin exposure, covers the epidemiology, pathophysiology, clinical presentation, diagnosis, and treatment of this disease syndrome. DATA SOURCES AND STUDY SELECTION:Current consensus of opinion is given ba...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.1043/0003-9985(2000)124<1657:POHIT>2.0.CO;2
更新日期：2000-11-01 00:00:00
abstract：:Anorectic agents, such as aminorex and fenfluramine derivatives, have been associated previously with the development of primary pulmonary hypertension. The combination diet drug phentermine-fenfluramine (or "phen-fen") was recently marketed in the United States. We describe a case of a 39-year-old woman with rapidly ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(1999)123<0539:CVLAAI>2.0.CO;2
更新日期：1999-06-01 00:00:00
abstract：CONTEXT:The College of American Pathologists Cancer Case Summaries templates provide a method for including all necessary pathology information in surgical pathology reports with cancer. How effective these templates are at ensuring a complete report, as measured by a separate outside tumor registry, is not known. OBJ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2012-0733-OA
更新日期：2014-01-01 00:00:00
abstract：:Rosai-Dorfman disease is an idiopathic histiocytic disorder of lymph nodes and extranodal sites. Central nervous system manifestations of this disease are rare, and to our knowledge only 16 cases of intracranial involvement have been reported previously. Intracranial Rosai-Dorfman disease clinically and radiologically...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1998-02-01 00:00:00
abstract：CONTEXT:- Intradepartmental consultation is a routine practice commonly used for new diagnoses. Expert interinstitutional case review provides insight into particularly challenging cases. OBJECTIVE:- To investigate the practice of breast pathology consultation at a large tertiary care center. DESIGN:- We reviewed bre...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2016-0371-OA
更新日期：2017-04-01 00:00:00
abstract：CONTEXT:- The rapid advances in targeted therapies in non-small cell lung cancer (NSCLC) make the optimization and implementation of cytology specimens for molecular testing a priority. Up to 70% of patients with NSCLC are diagnosed at advanced stages and tissue biopsies often cannot be taken. Although cytology samples...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2017-0208-RA
更新日期：2018-03-01 00:00:00
abstract：CONTEXT:Galectin-3, a member of the lectin family, was shown to be expressed in normal distal tubular cells and in renal cell carcinomas (RCC). However, its diagnostic and prognostic significance in RCC is as yet undefined. OBJECTIVES:To describe the expression of Galectin-3 among different histologic subtypes of rena...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/2008-0392-OAR1.1
更新日期：2010-01-01 00:00:00
abstract：:Distinctive morphological features in both the marrow infiltrate and the kidney were seen in a 52-year-old woman with kappa light chain-producing plasma cell myeloma, diagnosed on the basis of multiple osteolytic lesions, the presence of atypical plasma cells in the bone marrow, and monoclonal immunoglobulin productio...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1987-02-01 00:00:00
abstract：CONTEXT:Genomic medicine is revolutionizing patient care. Physicians in areas as diverse as oncology, obstetrics, and infectious disease have begun using next-generation sequencing assays as standard diagnostic tools. OBJECTIVE:To review the role of pathologists in genomic testing as well as current educational progra...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/arpa.2013-0359-SA
更新日期：2014-04-01 00:00:00
abstract：CONTEXT:Fish consumption has been associated with a decreased risk of coronary artery disease. Recent studies have illustrated that the high mercury content in cold-water fish may negate the cardiovascular benefits of fish meals. Fish oils have similar antiatherogenic properties to fish, and similar studies should be p...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2003)127<1603:MOMLIC>2.0.CO;2
更新日期：2003-12-01 00:00:00
abstract：:A 43-year-old white woman had a pheochromocytoma removed from her left adrenal gland, and one year later she developed a new left upper abdominal mass that was found to be a neuroblastoma. On both occasions, urinary vanillylmandelic acid level was elevated. However, urinary norepinephrine and epinephrine levels were i...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1989-07-01 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
