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Ceskoslovenská Patologie

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https://www.readbyqxmd.com/read/28597671/mature-teratoma-of-the-uterine-corpus-a-case-report
#1
Jan Galko, Pavel Dundr
We report a case of a 37-year old female with a mature teratoma of the uterine corpus presented by metrorrhagia. Grossly, the tumor was polypoid without apparent invasion into the myometrium. Microscopically, the tumor consisted of disorganized mature neural tissue intermingled with nodular foci of cartilaginous tissue, groups of seromucionous glands and ciliated columnar respiratory epithelium. Fifteen months after the diagnosis, the patient showed no signs of tumor relapse. Then she was lost for a follow-up...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28597670/-identification-of-an-optimal-algorithm-for-effective-diagnostics-of-non-small-cell-lung-cancer-with-alk-gene-rearrangement-implementation-of-the-method-and-practical-experiences-with-routine-diagnostics
#2
Tomáš Rozkoš, Aleš Ryška, Markéta Nová, Helena Hornychová, Lukáš Krbal, Radoslav Matěj, Jan Laco
The aim of the retrospective part of the study was a) to select an optimal clone of immunohistochemical (IHC) antibody against the ALK protein with specificity and sensitivity high enough to use this antibody as a screening method for selecting non-small cell lung cancer (NSCLC) cases for fluorescence in situ hybridization (FISH) testing of ALK gene rearrangement and b) to determine the diagnostic yield of "small" biopsies i.e. endobronchial, transbronchial and transthoracic biopsies and cytoblocks for ALK gene rearrangement testing...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28597669/-myxoid-tumors-of-soft-tissues
#3
Karel Veselý
Myxoid tumours of soft tissue represent a heterogeneous spectrum of lesions with variable biological behaviour, from completely benign to highly aggressive malignancies. Myxoid tumours share abundant myxoid extracellular matrix, overlapping histopathologic features and immunohistochemical findings, with resulting diagnostic problems. This review article attempts to give the most complete list possible, with the characterization of gross and microscopic features, relevant immunohistochemical and molecular biology findings and to outline differential diagnosis...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28597668/hybrid-peripheral-nerve-sheath-tumors-a-review
#4
Michael Michal, Dmitry V Kazakov, Michal Michal
Hybrid peripheral nerve sheath tumors (HPNST) are relatively recently described tumors. With ongoing research, a considerable amount of important findings have been made, much of which has substantial clinical implications. However, a comprehensive review of the whole topic has not been published in the literature so far. In the presented manuscript, the various hybrid tumors are discussed separately with a special emphasis on the morphological and immunohistochemical findings as well as on their association with tumor syndromes...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28597667/-giant-cell-rich-lesions-of-bone-and-their-differential-diagnosis
#5
Iva Zambo, Lukáš Pazourek
Giant cell-rich lesions form a heterogeneous group of reactive and truly neoplastic processes with diverse clinical presentation and biological behavior. Common to all of them are variably numerous multinucleated osteoclast-like giant cells and the presence of mononuclear stroma. Based on the histological picture alone it is sometimes impossible to reliably distinguish certain tumors from each other. The pathologist has to know the patient´s age, the exact localization, tumor growth dynamics and its radiographic characteristics...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28248121/-unusual-histopathological-picture-of-acute-lung-injury-in-different-stages-of-resorption-with-predominance-of-organizing-pneumonia-in-a%C3%A2-young-man-with-influenza-a%C3%A2-h1n1
#6
Daniel Farkaš, Radoslav Matěj, Marián Ml Švajdler, Marcela Sluková, Jana Seligová, Lucia Fröhlichová, Silvia Farkašová Iannaccone, Vlasta Vyhnálková, Alžbeta Ginelliová
In this case report the authors describe histomorphological findings of acute lung injury with laboratory-confirmed influenza type A(H1N1) pneumonia leading to the death of a 30 year-old unvaccinated man after 27 days of hospitalisation. Histologically all three types of acute lung injuries were unusually present (diffuse alveolar damage, acute interstitial pneumonia, organizing pneumonia) in different phases of resorption and reparation with transition to extensive fibrosis.
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28248120/sebaceous-adenoma-arising-in-mature-cystic-teratoma-of-the-ovary-case-report
#7
Kristýna Němejcová, Pavel Dundr, Jana Rosmusová, Inna Tučková
We report the case of a 44-year-old female with sebaceous adenoma arising in mature cystic teratoma of the ovary. The patient had a tumor in the left ovary; 125 x 90 x 70 mm. Microscopically, the tumor consisted of structures typical of dermoid cysts. However, large areas of sebaceous proliferation were found. These areas were comprised of sebaceous nodules with features similar to a sebaceous adenoma of the skin. Immunohistochemically, the tumor showed "wild-type" expression of p53 and low proliferative activity (Ki-67 index < 5%)...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28248119/familial-hemophagocytic-lymphohistiocytosis-from-autopsy-to-prenatal-diagnosis-report-of-a%C3%A2-case
#8
Marta Ježová, Renata Gaillyová
Hemophagocytic lymphohistiocytosis is a rare immunologic disorder affecting small children. It is characterized by an excessive and injurious immune response which turns rapidly fatal unless promptly and effectively treated. The main clinical signs are prolonged fever, hepatosplenomegaly, bleeding and laboratory findings of pancytopenia, increased serum transaminases, hypertriglyceridemia and hypofibrinogenemia. Four genes responsible for familiar hemophagocytic lymphohistiocytosis, which is inherited in autosomal recessive manner, have been identified so far...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28248118/-update-on-the-2016-who-classification-of-tumors-of-the-central-nervous-system-part-2-embryonal-tumors-and-other-tumor-groups-except-for-diffuse-gliomas
#9
Josef Zámečník, Boris Rychlý, Marian Švajdler
The 2016 revision of the WHO classification of tumors of the central nervous system is a conceptual advance over the 2007 classification system. Similarly to the group of diffuse gliomas, a significant shift in the understanding of the molecular background and tumor biology has recently occurred also in the category of embryonal CNS tumors, especially in medulloblastomas. The classification now incorporates new entities that are defined by both histology and molecular features. Updates in the group of gliomas (except for diffuse gliomas), in the meningeal tumors as well as in the tumors of peripheral nerve sheaths will also be discussed...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28248117/-update-on-the-2016-who-classification-of-tumors-of-the-central-nervous-system-part-1-diffusely-infiltrating-gliomas
#10
Marian Švajdler, Boris Rychlý, Josef Zámečník, Peter Švajdler
Revised WHO 2016 classification of tumors of the central nervous system (CNS) incorporates for the first time genetic information in addition to morphology for classification of many tumor entities. One of the most important changes is restructuring the chapter of diffuse gliomas. Based on shared genetic driver mutations, diffusely infiltrating astrocytomas and oligodendrogliomas are now classified together, separately from "other" glial tumors with a more circumscribed growth pattern, different pathogenesis and clinical outcome...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869450/basal-cell-carcinoma-of-the-skin-with-mixed-histomorphology-a%C3%A2-comparative-study
#11
Vladimír Bartoš, Milada Kullová
Basal cell carcinoma (BCC) of the skin exhibits a very heterogeneous histomorphology, on the basis of which it is classified into several subtypes and variants. In many cases, however, a definite categorization remains difficult, because BCC may consist of more than one histopathological subtype. There are limited data exploring the characteristics of these mixed BCCs, since they have not been specifically analysed. The aim of this study was to estimate the prevalence of BCCs with mixed histomorphology observed in a set of primary BCCs and to compare their clinicopathological features with a single type BCC subgroup...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869449/-diffuse-tenosynovial-giant-cell-tumor-of-the-cervical-spine-destroying-vertebra-c6-a%C3%A2-case-report
#12
Zdeněk Kinkor, Tomáš Svoboda, Petr Grossman, David Bludovský, Filip Heidenreich, Andrej Švec, Iveta Mečiarová
Presented is a case of 59-year-old woman with longstanding neck pain who has been promptly operated for spinal cord compression. Imaging studies disclosed ill-defined cervical paravertebral soft tissue mass at the level of vertebra C5/6 abutting left-sided intervertebral joint and destroying neighboring both vertebral arch and processus spinosus. Submitted specimen was interpreted as a possible metastatic skeletal process by clinicians and referring pathologist favored diagnosis of giant cell tumor/osteoclastoma of the bone...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869448/clear-cell-sarcoma-of-vulva-a-case-report
#13
Kristýna Němejcová, Pavel Dundr, Ivana Krajsová
We report the case of a 67-year-old female with clear cell sarcoma (CCS) of the vulva. Grossly, the tumor was a partly exophytical vulvar mass, measuring 20 x 15 cm. At the time of presentation, the patient showed metastases to the lung, inguinal and pelvic lymph nodes. Histologically, the tumor consisted of oval or spindle cells with only mild nuclear pleomorphism and rare mitoses (up to 2/10 HPF). The cytoplasm was pale eosinophilic or clear. The tumor cells were arranged in confluent sheets. There were large areas of necrosis and surface ulceration...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869447/-testing-of-mutations-in-brca1-and-brca2-genes-in-tumor-tissues-possibilities-and-limitations
#14
Hana Vošmiková, Aleš Ryška, Kateřina Sieglová, Jan Laco
Development of targeted cancer therapy is accompanied by a search for markers allowing prediction of response to the particular treatment. Recently, the interest is focused, among other neoplasms, also on the therapy of ovarian cancer using new inhibitors of poly (ADP-ribose) polymerase (PARP) proteins, nuclear enzymes involved in the repair of single-stranded DNA breaks. The greatest benefit from the administration of PARP inhibitors have patients with a deleterious or potentially deleterious germ-line or somatic mutation of BRCA1 or BRCA2, two genes responsible for repair of double stranded DNA breaks...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869446/-oncopathological-aspects-of-brca1-and-brca2-genes-inactivation-in-tumors-of-ovary-fallopian-tube-and-pelvic-peritoneum
#15
Petr Škapa, Pavel Dundr
Ovarian carcinoma represents a heterogeneous group of malignant epithelial tumors which could be divided into two fundamental groups: Type I (endometrioid carcinoma, clear cell carcinoma, low grade serous carcinoma, mucinous carcinoma and more rare seromucinous carcinoma and malignant Brenner tumor) and type II (high grade serous carcinoma - HGSC). HGSC is the most frequent ovarian carcinoma which may be etiologically linked to inactivation of tumor suppressor genes BRCA1/2 and TP53 and differs from type I carcinomas by higher aggressiveness, tendency to peritoneal spread and worse prognosis...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869445/-breast-cancer-in-brca1-2-mutation-carriers
#16
Pavel Fabian, Rudolf Nenutil
Inherited mutations in BRCA1 and BRCA2 genes represent the most important cause of hereditary breast cancer. This highly penetrating familial cancer syndrome, including also the onset of ovarian cancer and other malignancies at relatively low age, represents a substantial medical problem. The affected families should be managed actively. When compared to spontaneous tumors, the breast carcinomas in BRCA1 mutation carriers exhibit a relatively different, despite non-specific, phenotype (often triple negative, medullary features) arousing suspicion of hereditary background...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869444/-brca1-and-brca2-pathologists-starting-kit
#17
Petr Škapa
Dysfunction of tumor suppressor genes BRCA1 and BRCA2 is involved in the pathogenesis of malignant tumors, especially breast and ovarian carcinoma. BRCA1/2 genes may be inactivated by germinal and somatic mutations or epigenetic changes. Germinal mutations are responsible for the hereditary breast and ovarian carcinoma syndrome. Defects of BRCA1/2 genes lead to the failure of homologous recombination, the basic mechanism for DNA double strand break repair. The resultant genomic instability is associated with a high risk of malignant transformation of the cell, but it also results in a higher sensitivity of tumors to platinum-based chemotherapeutic compounds which damage DNA structure directly...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27526019/-lungs-hassalloid%C3%A2-s-like-bodies-in-children-with-epidermolysis-bullosa-junctionalis-and-bart%C3%A2-s-syndrome
#18
Katarína Adamicová, Tomáš Balhárek, Želmíra Fetisovová, Yvetta Mellová
Epidermolysis bullosa and Bart´s syndrome are fairly accurately documented diseases by histopathology. In the article the authors describe interesting and hitherto undescribed phenomenon in the lungs male infant with epidermolysis bullosa junctionalis and Barts syndrome, who died 17 days after birth and 13 days after surgery for pyloric atresia, on multiorgan failure within basic congenital diseases.Histologically in lung alveoli was found to the massive presence of foamy macrophages and numerous globoid formations resembling morphological and immunohistochemical "Hassall´s" bodies in a thymus of the newborn...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27526018/-case-report-diagnosis-under-the-microscope-disseminated-echninococcosis-the-multilocular-form-with-protoscoleces
#19
Tomáš Jůza, Alena Jůzová, Tatiana Gajdošová
Echinococcosis (hydatidosis) is a rare severe tissue parasitosis. In the Czech Republic it is caused by two species of tapeworm: Echinococcus granulosus or Echinococcus multilocularis. The species differ in both their usual hosts during their life cycle as well as in the typical form of lesions in infested tissues. In both cases the liver is the most common primary infested organ.We describe an autopsy case of a massive hepatic parasitic lesion in an 81 year-old man. There were metastatic parasitic cysts in both lungs and the hepatic mass spread per continuitatem in the right adrenal gland...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27526017/submucosal-calcifying-fibrous-tumor-of-the-stomach-a-case-report
#20
Magdaléna Štofíková, Boris Rychlý, Jozef Bocko, Dušan Daniš
The calcifying fibrous tumor is a rare benign fibrous tumor which occurs in subcutaneous or deep soft tissues in children and young adults, but also is frequently seen in pleural and intraabdominal locations in older people. Gastric involvement has been only sporadically reported in the literature. We present here our experience with this unusual lesion discovered in a 68-year-old woman. Clinically, the tumor was described as a pendulating, submucosally located mass, in the body of the stomach on a lesser curvature...
2016: Ceskoslovenská Patologie
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