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38 result(s) for "Issa, Rana"
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A large ovarian steroid cell tumor‐not otherwise specified with a unique combination of benign and malignant features as a challenging cause of oligomenorrhea and hirsutism in a 21‐year‐old Syrian female: a case report
Background Ovarian steroid cell tumors represent a rare category of sex cord-stromal tumors that constitute less than 0.1% of all ovarian tumors. These neoplasms are classified into three main subtypes according to the cell of origin: Leidyg cell tumors, stromal luteomas, and steroid cell tumors not otherwise specified (SCTs-NOS). The latter subtype is defined as a neoplasm of an uncertain lineage that mostly affects middle-aged women, whereas it’s rare in younger ages. Case presentation We report a case of a 21-year-old virgin female who presented to our hospital with complaints of mild abdominal pain, hirsutism, and oligomenorrhea for more than a year. Before her current admission, the patient had attended an external gynecologic clinic where she had been prescribed oral contraceptives to regulate her periods. Nevertheless, on presentation to our institution, physical examination revealed abdominal tenderness with a palpable pelvic mass and mild hirsutism in the thigh. Ultrasonography demonstrated a large left ovarian mass measuring 154 × 104 mm, and compressing the uterus. Therefore, a unilateral salpingo-oophorectomy was performed, and interestingly, pathologic examination of the large aforementioned mass alongside with immunohistochemical correlation revealed the diagnosis of a large ovarian steroid cell tumor-not otherwise specified with a unique combination of benign and malignant features. Conclusions Although ovarian steroid cell tumors represent a rare category, they must be considered in the differential diagnosis for mild virilization symptoms in young females due to the importance of early diagnosis and management. In this manuscript, we aimed to present the first case report from Syria that highlights the crucial role of detailed morphological examination for challenging cases despite the difficulties in differential diagnosis, and the absence of ancillary techniques. Furthermore, we managed to discuss a brief review of diagnostic methods, histological characteristics, and treatment recommendations.
Investigation and Study of Photonic Current Rate in Bremsstrahlung process
In this paper, we investigate and study quantum theoretical of quark-gluon interaction modeling in QGP matter formatted. In theoretical modeling, we can use a flavor number, strength coupling, critical energy T c = 190 MeV, system energy (400-650)MeV, fugacity of quark and gluon, and photon energy in range of 1-10 GeV parameter to calculation and investigation spectrum of photon rate. We calculation and study the photon rate produced through bremsstrahlung processes from the stable QGP matter. The photon rate production from cg → dgy systems at bremsstrahlung processes are found to be increased with increased fugacity, decreased strength coupling, decreased the photons energy and temperature of system. The photons rate in cg → dgy is increases a little compared to the cg → bgy systems.
Primary splenic anaplastic variant of diffuse large B-cell lymphoma: a case report
Background Primary splenic lymphoma represents a rare entity that constitutes less than 1% of non-Hodgkin lymphomas, and less than 2% of all lymphomas. Diffuse large B-cell lymphoma (DLBCL) is the most common histological subtype of primary splenic lymphomas. DLBCL encompasses a heterogeneous entity with distinct morphological variants. The anaplastic variant of DLBCL was first defined in the 2017 World Health Organization classification as a rare histological subtype that constitutes less than 3.4% of DLBCL cases. Case presentation A 65-year-old Syrian man presented to our hospital with constant dull localized left upper quadrant abdominal pain for about 20 days accompanied by general weakness, loss of appetite, and rapid weight loss. Clinical examination revealed isolated splenomegaly and left upper abdominal tenderness. Following physical, laboratory, and radiologic examinations, the patient underwent splenectomy. Interestingly, pathological and immunohistochemical examinations of the resected spleen confirmed the diagnosis of a primary anaplastic variant of DLBCL. Conclusions Herein, we aimed to present an unusual combination of a rare splenic neoplasm and a unique lymphoma subtype. Furthermore, we aimed to highlight the difficulties in differential diagnosis and the importance of histological and immunohistochemical examinations with clinical correlation.
Eccrine spiradenoma on the anterior forearm in a pediatric patient: A rare case report
Key Clinical Message Spiradenoma is a rare benign adnexal tumor arising from eccrine sweat glands. It presents as a painful bluish nodular lesion which occurs rarely over the arms. This case report adds to a case where a recurrent spiradenoma occurred over the arm. The majority of reported cases involve young adults, making our pediatric case particularly unusual. Early diagnosis through excisional biopsy is crucial for optimal management and prevention of recurrence or malignant transformation. Eccrine spiradenoma is an uncommon tumor that should be kept in mind in case of a patient with a painful nodule. More genetic studies are needed for the best understanding of this rare tumor entity.
Liposarcoma of the Spermatic Cord With Signs and Symptoms Mimicking the Inguinal Hernia: A Rare Case Report
Liposarcoma of the spermatic cord (LSC) is extremely rare; < 200 cases were reported in the medical literature. Because of the rarity of these tumors and their presentation as a painless inguinal or scrotal mass, preoperative diagnosis is uncertain and they are frequently misdiagnosed as inguinal hernias.
Large tumoral pseudoangiomatous stromal hyperplasia with ER/PR stromal negativity in a 20‐year‐old female: A rare case report
Key Clinical Message Pseudoangiomatous stromal hyperplasia (PASH) is a rare lesion of the breast stromal tissue with unknown mechanism. Hormonal stimulation of mammary myofibroblasts is the most important theory due to stromal positivity of progesterone receptor (PR) or/and estrogen receptor (ER). We report a case of PASH with stromal PR/ER negativity.
Diagnostic challenge of a cystic solid pseudopapillary tumor in pancreas: A case report
A solid pseudopapillary tumor should be included in the differential diagnosis of every pancreatic cystic lesion. A constellation of microscopic morphology and immunohistochemistry, in addition to the clinical history, aids in reaching the correct diagnosis. A solid pseudopapillary tumor should be included in the differential diagnosis of every pancreatic cystic lesion. A constellation of microscopic morphology and immunohistochemistry, in addition to the clinical history, aids in reaching the correct diagnosis.
Scripture as Literature: The Bible, the Qurʾān, and Aḥmad Fāris al-Shidyāq
Abstract This article explores Aḥmad Fāris al-Shidyāq's treatment of Christian and Islamic dogma in his linguistic and literary works, al-Sāq ʿalā al-sāq fī mā huwa al-Fāryāq and Mumāḥakāt al-taʾwīl fī munāqaḍāt al-injīl, among others. A convert to Islam, al-Shidyāq is a notorious critic of Christian doctrine and scripture. I draw parallels with his Bible critique to show how he thwarts the Qurʾān's stronghold on the Arabic language. Borrowing from Muʿtazilah doctrines, al-Shidyāq proposes that language is a human creation-and meaning a human relation-and blames Arabic philologists for conflating language with submission to the divine. Through the technique of iqtibās, al-Shidyāq perforates the scriptural authority of the Bible and the Qurʾān by treating them as literary texts. Al-Shidyāq underscores the scriptures as products of the human, and not the divine, mind. His parodic play with iqtibās underscores literary rigor against authoritative discourse. Al-Shidyāq provides us with exquisite examples of how radicalness may be diffused, asserted, curtailed and covered up through word choice as well as conditions of book production, to affect a critique of authority that would long outlast his time.
Biologic role of activated leukocyte cell adhesion molecule overexpression in breast cancer cell lines and clinical tumor tissue
The activated leukocyte cell adhesion molecule (ALCAM) is overexpressed in many mammary tumors, but controversial results about its role and prognostic impact in breast cancer have been reported. Therefore, we evaluated the biologic effects of ALCAM expression in two breast cancer cell lines and a larger cohort of mammary carcinomas. By stable transfections, MCF7 cells with ALCAM overexpression and MDA-MB231 cells with reduced ALCAM levels were generated and analyzed in functional assays and cDNA microarrays. In addition, an immunohistochemical study on 347 patients with breast cancer with long-term follow-up and analysis of disseminated tumor cells (DTCs) was performed. In both cell lines, high ALCAM expression was associated with reduced cell motility. In addition, ALCAM silencing in MDA-MB231 cells resulted in lower invasive potential, whereas high ALCAM expression was associated with increased apoptosis in both cell lines. Among genes which were differentially expressed in clones with altered ALCAM expression, there was an overlap of 15 genes between both cell lines, among them cathepsin D, keratin 7, gelsolin, and ets2 whose deregulation was validated by western blot analysis. In MDA-MB231 cells, we observed a correlation with VEGF expression which was validated by enzyme-linked immuno sorbent assay (ELISA). Our IHC results on primary breast carcinomas showed that ALCAM expression was associated with an estrogen receptor-positive phenotype. In addition, strong ALCAM immunostaining correlated with nodal involvement and the presence of tumor cells in bone marrow. By Kaplan–Meier analysis, strong ALCAM expression in ductal carcinomas correlated with shorter recurrence-free intervals ( P  = 0.048) and overall survival (OAS, P  = 0.003). Our results indicate that the biologic role of ALCAM in breast cancer is complex, but overexpression might be relevant for outcome in ductal carcinomas.
Estrogen receptor gene amplification occurs rarely in ovarian cancer
Amplification of the gene encoding estrogen receptor- α occurs in about 20% of breast cancers and is an important mechanism for estrogen receptor overexpression in this tumor type. In ovarian cancer, overexpression of estrogen receptor protein has been described in more than two thirds of cases. To study a potential role of estrogen receptor- α gene amplification for estrogen receptor overexpression in ovarian cancer, a tumor tissue microarray containing 428 ovarian cancers was analyzed by fluorescence in situ hybridization for estrogen receptor- α gene amplification and immunohistochemistry for estrogen receptor expression. The estrogen receptor- α gene status was successfully determined in 243 of 428 arrayed cancers. Estrogen receptor gene amplification was found in 5 of 243 (2%) of tumors. Amplification levels were usually low, with 4–8 estrogen receptor- α gene copies. However, one case had a high-level amplification, with more than 30 estrogen receptor- α gene copies. All five amplified tumors were estrogen receptor positive, with 3 of 5 tumors showing highest (Allred score, 7–8) estrogen receptor levels. The data demonstrate that estrogen receptor- α amplification occurs only rarely in ovarian cancer.