Abstract：
CONTEXT:Myofibroblastic proliferations of the urinary bladder, which share some similarities with nodular fasciitis, were first reported in 1980. Since then, they have had several designations, the most frequently used being inflammatory myofibroblastic tumor. Based on both histopathologic and prognostic grounds, some authors prefer the term pseudosarcomatous myofibroblastic proliferation, at least for some of the proliferations. These same scientists also assimilate the so-called postoperative spindle cell nodules with the pseudosarcomatous myofibroblastic proliferations. Little is known about these low-grade myofibroblastic proliferations. OBJECTIVES:To review the literature about low-grade myofibroblastic proliferations occurring in the urinary bladder. DATA SOURCES:Textbooks and literature review. We obtained most of the clinicopathologic peculiarities from a patient population composed of the most-relevant, previously reported cases. CONCLUSIONS:The low-grade myofibroblastic proliferations of the urinary bladder are rare lesions affecting males more often than they do females. The most-common signs and symptoms are hematuria and dysuria. Histopathologically, they are spindle cell proliferations in a loose myxoid stroma, even though compact proliferations or hypocellular fibrous patterns can be found. Immunohistochemistry is quite nonspecific, except for ALK-1 positivity (20%-89%). Fluorescence in situ hybridization has demonstrated clonal genetic aberrations involving the ALK gene in 50% to 60% of cases. After surgery, only 6% of patients experience local recurrence, without metastases or deaths from the disease. Malignant transformation has been reported exceptionally. These myofibroblastic proliferations are probably part of a continuum with, at one end, benign pseudosarcomatous proliferations and, at the opposite end, more-aggressive lesions. Because of the frequently indolent clinical course, aggressive treatment would be unjustified.
journal_name
Arch Pathol Lab Medjournal_title
Archives of pathology & laboratory medicineauthors
Alquati S,Gira FA,Bartoli V,Contini S,Corradi Ddoi
10.5858/arpa.2012-0326-RAsubject
Has Abstractpub_date
2013-08-01 00:00:00pages
1117-28issue
8eissn
0003-9985issn
1543-2165journal_volume
137pub_type
杂志文章,评审abstract：OBJECTIVE:It has been suggested that localized Langerhans cell histiocytosis may represent an exaggerated form of a proliferative process that has been reported in a few patients with myasthenia gravis. To evaluate the relationship between thymic Langerhans' cell proliferation and myasthenia gravis, we analyzed a rare ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1997-02-01 00:00:00
abstract：:This project was designed to evaluate different criteria used in the interpretation of the human immunodeficiency virus type 1 (HIV-1) Western blot assay on a group of serum samples blinded to the examiner that were collected from individuals attending three different public health departments in central North Carolin...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:A 35-year-old man with hematuria had a polypoid bladder lesion, which on microscopic examination was a fibroepithelial polyp containing numerous stromal cells with atypical, hyperchromatic nuclei. The polyp resembled those encountered in the lower female genital tract and other sites and must be distinguished from sar...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1986-03-01 00:00:00
abstract：:We report a case of rupture of a saccular pulmonary artery aneurysm with fatal hemopericardium in a 29-year-old man who also had persistent ductus arteriosus with severe pulmonary hypertension. Histologic examination of the pulmonary artery showed cystic medionecrosis similar to that observed in patients with ruptured...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1992-02-01 00:00:00
abstract：CONTEXT:It is recommended that hemoglobin (Hb) A1c (Hb A1c) not be used to assess average glycemia in patients who have altered red blood cell life span. OBJECTIVE:To investigate the frequency of reporting an Hb A1c value for Hb variant samples that do not include Hb A. DESIGN:Hb A1c samples (n = 500) were procured a...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.5858/arpa.2012-0714-OA
更新日期：2013-12-01 00:00:00
abstract：:Quantitation of T and B lymphocytes in infants and children is an important test in the diagnosis of a suspected immuno-deficiency. Previous studies indicated that the absolute and relative numbers of lymphocyte subpopulations vary with age, but these data in the pediatric age group are incomplete and often contradict...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1983-10-01 00:00:00
abstract：:We report a case of hepatic inflammatory myofibroblastic tumor in a 26-year-old African American man who presented with right upper quadrant pain, weight loss, and fatigue during the previous year. Hepatomegaly was found on physical examination. Laboratory findings were significant for mild normocytic, normochromic an...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2006)130[1548:IMTOTL]2.0.CO;2
更新日期：2006-10-01 00:00:00
abstract：:Therapeutic drugs are not endogenous compounds. Therefore, differing reactivities between proficiency testing and patient samples have potential mechanisms beyond those attributable to alterations of the serum protein base, stabilizing materials, and other manufacturing components. The therapeutic drug monitoring prof...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：OBJECTIVE:Bcl-2 and p53 genes may participate in a common pathway for regulation of apoptosis. The aims of this study were (1) to study the immunohistochemical expression of the bcl-2 oncoprotein in colorectal tumors, (2) to correlate it with that of p53 protein overexpression, and (3) to compare it with histopathologi...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1996-07-01 00:00:00
abstract：:Intravenously (IV) injected Evans blue dye consistently accumulates at particular areas in aortas of normal swine. Theses areas are also where IV injected tracer cholesterol accumulates. We studied the ultrastructural characteristics of blue vs nonblue areas in the abdominal aortas of both control and atherosclerotic ...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-04-01 00:00:00
abstract：:We describe the clinical, radiologic, and pathologic features of four cases of intraosseous lipoma. The patients ranged in age from 37 to 48 years, and three of them were men. Three patients presented with pain; in the fourth patient, the lesion was discovered incidentally. The involved bones were distal radius (in on...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：BACKGROUND:Primary liposarcomas of the pleura are extremely rare malignancies, and relatively few reports appear in the world literature. DESIGN:We compiled a small series of 4 cases of primary pleural liposarcoma from the files of the Armed Forces Institute of Pathology (Washington, DC) and compared the histopatholog...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.1043/0003-9985(2000)124<0699:LOTPC>2.0.CO;2
更新日期：2000-05-01 00:00:00
abstract：:To our knowledge, there are currently no reports in the literature that discuss the fine structure of the striated ducts of the human parotid gland. Papillary cystadenoma lymphomatosum (Warthin's tumor) is a benigh neoplasm found almost exclusively in the parotid gland that represents about 16% of all neoplasms of the...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1977-08-01 00:00:00
abstract：:Histopathology is based on the interpretation of features of the microscopic image. In recent years, there has evolved interest in assessing quantifiable data from these images, with the intent of providing more precise diagnostic and prognostic information. Proliferation characteristics of tumors are among the most i...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1991-06-01 00:00:00
abstract：:The clinical and pathologic features of a case of postoperative spindle-cell nodule within the endometrium are reported, a lesion hitherto undescribed in this site. The nodule was found in the hysterectomy specimen from a 75-year-old woman, 2 1/2 weeks after a dilatation and curettage had revealed a well-differentiate...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1988-05-01 00:00:00
abstract：:We studied 16 cases of bile duct adenomas, lesions that are distinct from Meyenburg complex. The former lesion is made up of small tubular structures with little or no lumen, is usually single and subcapsular, and is unrelated to cystic disease. It must be differentiated from early carcinoma. Of the six cases encounte...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:Analysis of 1,261 adult subjects, ages 25 to 80 years, showed that there is a positive relationship between the brain weight and the body dimensions. The brain weight, however, increases at a slower rate than the body dimensions. There is indication that only a small portion of the brain varies with variation in the b...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1980-12-01 00:00:00
abstract：:A 67-year-old man, with multiple skin lesions that appeared over 2 years, had biopsies that disclosed granulomatous dermatitis with associated small yeasts. The urinary antigen test results were negative for Histoplasma infection; cultures from the biopsies did not grow any fungi or other potential pathogens. The ches...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章,评审
doi：10.5858/2010-0588-CRR.1
更新日期：2011-09-01 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：:A case of epithelioid sarcoma was studied light microscopically, ultrastructurally, and immunohistologically. The tumor was a deep antebrachial mass in a 57-year-old man, and led to antebrachial amputation. Light microscopically, the tumor consisted of nodules that often had central necrosis. The cells were uniform, w...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-11-01 00:00:00
abstract：OBJECTIVES:To identify resources and summarize important issues in anatomic and clinical pathology training and to assist the pathology resident candidate in evaluating potential training programs. DATA SOURCES:Published guides for medical residency applicants, recent literature discussing pathology education, and Wor...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2000)124<0853:IEOPRP>2.0.CO;2
更新日期：2000-06-01 00:00:00
abstract：:Aspiration biopsy cytology (ABC) specimens were obtained from 540 patients by transrectal biopsy because of suspicious lesions or metastases from occult carcinoma. Although poorly differentiated prostatic carcinoma had previously presented few diagnostic problems by ABC, cells from well-differentiated adenocarcinoma h...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：:We report two unusual manifestations of multiple myeloma in a 71-year-old man. Late in the course of his disease, myeloma cells were observed in the patient's urinary sediment. At post mortem, the source of the cells was found to be a plasmacytoma of the urinary bladder. To our knowledge, this appears to be the first ...
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：OBJECTIVES:To identify errors in surgical pathology practice that lead to malpractice claims, and to define the frequency and severity of pathology malpractice claims and discuss the implications. DESIGN:Three hundred seventy-eight pathology malpractice claims reported to The Doctors Company of Napa, Calif, between 19...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2005)129[1234:AIPOEA]2.0.CO;2
更新日期：2005-10-01 00:00:00
abstract：:The lymph nodes from 50 axillary node dissections were evaluated by light microscopy and immunohistochemistry for the presence of dermatopathic lymphadenitis-like histologic features. On the basis of hematoxylin-eosin-stained sections alone, a histologic continuum was observed ranging from minimal paracortical changes...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1988-11-01 00:00:00
abstract：:Because massive pulmonary thromboembolism is a rarely described cause of sudden and unexpected death in the pediatric age group, a 50-year retrospective review of autopsy cases at the Hospital for Sick Children, Toronto, Canada, was conducted to determine the local incidence and clinicopathologic features of such pati...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1990-02-01 00:00:00
abstract：:A 47-year-old white man presented for evaluation of a complex right renal mass. He had a history of human immunodeficiency virus. Cervical lymph node biopsy had revealed small lymphocytic lymphoma. Computed tomographic scan disclosed diffuse mesenteric and retroperitoneal adenopathy consistent with chronic lymphocytic...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/1543-2165(2005)129<111:SLLIAE>2.0.CO;2
更新日期：2005-01-01 00:00:00
abstract：:A case of systemic idiopathic fibrosis was analyzed by Southern blotting with probes to the immunoglobulin heavy chain and T-cell receptor genes. A 45-year-old man presented with bilateral neck swelling. He later developed lower back pain, and findings on a computed tomographic scan were consistent with idiopathic ret...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:We describe a unique case of simultaneous signet-ring histiocytes containing polyvinylpyrrolidone (mucicarminophilic histiocytosis) and hyperplastic mesothelial cells within a single supraclavicular lymph node. Both types of cells expanded the nodal sinuses and were initially suspected of being metastatic carcinoma. H...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1998-03-01 00:00:00
abstract：:Herein, we report a case of cutaneous angiosarcoma in a 35-year-old, morbidly obese woman. The tumor arose in the most dependent portion of the lower abdominal panniculus and showed typical changes of chronic lymphedema. The patient underwent a radical resection of her lower abdominal wall panniculus, which showed a m...
journal_title：Archives of pathology & laboratory medicine
pub_type： 杂志文章
doi：10.1043/0003-9985(2001)125<0531:CACMO>2.0.CO;2
更新日期：2001-04-01 00:00:00
