Abstract：
:Triple negative breast cancer (TNBC) represents a small subtype of breast cancer yet it has the worst outcome. Immunotherapy using immune checkpoint inhibitors combined with chemotherapy was recently approved by the FDA raising the hope for an improved outcome. The approval was based on demonstration of a positive PD-L1 expression using the SP142 CDx assay 1. We aimed to study a cohort of TNBC patients in terms of prevalence of the PD-L1 expression using the approved assay and to investigate its association with clinicopathological variables. This is a single center retrospective study consisting of 49 TNBC patients who had available archived paraffin-embedded tissue blocks from the primary tumors. All blocks were stained using the SP142 CDx assay as per the manufacture's instruction. Clinicopathological data were collected from medical records. Eighteen of the 49 (36.7%) patients were found to have a score of 1% or more by the immune cell-scoring algorithm. PDL-1 expression was significantly associated with the degree of tumor infiltrating lymphocytes (TILs). No additional significant relationship was found between PD-L1 expression and any of the other investigated clinicopathological variables. Although a trend of favorable prognostic association with PD-L1 expression was noted. The overall and event free survival were significantly related to pathological response to neoadjuvant therapy. Conclusion: Our PD-L1 rate of 36.7% is close to the results of the previously reported 40.9% in the IMpassion 130 trial. There were no significant association between positive PD-L1 expression and clinicopathological variables however a trend of a favorable outcome was observed.
journal_name
Ann Diagn Patholjournal_title
Annals of diagnostic pathologyauthors
Al-Jussani GN,Dabbagh TZ,Al-Rimawi D,Sughayer MAdoi
10.1016/j.anndiagpath.2021.151703subject
Has Abstractpub_date
2021-01-09 00:00:00pages
151703eissn
1092-9134issn
1532-8198pii
S1092-9134(21)00003-4journal_volume
51pub_type
杂志文章abstract：:A case of spinal thoracic chordoma involving the T9 vertebra in a 70-year-old male patient, destroying the vertebral body and invading the vertebral canal with compression of the spinal cord, is presented. The patient was referred to our neurosurgical unit with a history of an irradiated metastatic adenocarcinoma to t...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2006.09.002
更新日期：2007-08-01 00:00:00
abstract：BACKGROUND:Estrogen receptors (ER), progesterone receptors (PR) and the human epidermal growth factor receptor-2 (HER2) are basic breast cancer molecular markers that are also best recognized prognostic factors and predictors of type of targeted therapy to be given. The objectives are to study the correlation of expres...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2020.151659
更新日期：2020-11-05 00:00:00
abstract：:Primary rhabdomyosarcoma of salivary glands is an extremely rare neoplasm, mostly seen in children. A newly described subtype of rhabdomyosarcoma, sclerosing rhabdomyosarcoma, has not yet been reported in this location. We report on a parotid gland tumor characterized by infiltrative growth of primitive type of neopla...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2009.02.002
更新日期：2009-10-01 00:00:00
abstract：:Giant cell tumor of the salivary gland is extremely rare, with only 15 cases published in the English literature. The tumor characteristically contains a mixture of multinucleated giant cells, resembling osteoclasts of bone, and neoplastic mononuclear cells. In about half of the reported cases, there is an associated ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2007.06.009
更新日期：2009-04-01 00:00:00
abstract：:Granular cell tumors (GCT) are uncommon benign neoplasms that have a predilection for the head and neck region. These tumors can frequently be associated with pseudoepitheliomatous hyperplasia (PEH), which in turn may be mistaken for squamous cell carcinoma. Although epidermal growth factors are overexpressed in squam...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1053/adpa.2003.50011
更新日期：2003-04-01 00:00:00
abstract：:Although the lumen of the urinary bladder is covered with only urothelial epithelium, malign glandular lesions (eg, nonurachal adenocarcinoma) and benign lesions (eg, cystitis cystica and cystitis glandularis) can also rarely occur in this site due to its characteristic embryologic development. Glandular differentiati...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2011.06.003
更新日期：2011-12-01 00:00:00
abstract：:We report the case of a rare cardiac lesion, mesothelial/monocytic incidental cardiac excrescences, and also provide a review of the literature. Diagnosis of this entity was based on both its unique morphologic features and imunohistochemical stains. Cytokeratin positivity confirmed the epithelial component, mesotheli...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章,评审
doi：10.1016/s1092-9134(00)90009-1
更新日期：2000-02-01 00:00:00
abstract：:A total of sixty samples from human breast, uterus, liver, skin and abdominal fat were fixed for 8; 24 and 48 hours at a room temperature of 20 to 22°C with neutral buffered formalin (NBF) with volume to tissue ratios of 1:1; 2:1; 5:1 and 10:1 and manually processed with isopropyl alcohol and mineral oil mixtures. All...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2011.12.003
更新日期：2012-06-01 00:00:00
abstract：:An important amount of data correlating the expression of epithelial cell adhesion molecule (Ep-CAM) with cellular proliferation and de-differentiation could directly contribute to carcinogenesis. The aim of this study is to evaluate prognosis relevance of Ep-CAM expression in a group of pituitary adenomas. Epithelial...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2010.06.008
更新日期：2010-12-01 00:00:00
abstract：:Malignant rhabdoid tumors (MRTs) are well recognized in the kidney and extrarenal sites such as soft tissues, retroperitoneum, and bladder but are classified as atypical teratoid/rhabdoid tumors in the central nervous system. The unifying features of both extracranial MRT and atypical teratoid/rhabdoid tumors are the ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章,评审
doi：10.1016/j.anndiagpath.2011.04.008
更新日期：2012-12-01 00:00:00
abstract：:To test the hypothesis of whether cellular blue nevi (CBN) may originate from "ordinary" compound and dermal nevi, a total of 275 melanocytic nevi including 59 CBN, 34 ordinary blue nevi, 87 combined nevi (including 43 so-called clonal nevi), 35 deep penetrating nevi, and 60 ordinary compound and dermal nevi (30 of ea...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2007.03.001
更新日期：2007-06-01 00:00:00
abstract：:Granulosa cell tumor is almost exclusively an ovarian tumor. Rare cases of granulosa cell tumor have been reported involving the testes. We report a testicular gonadal stromal tumor with granulosa cell differentiation in a 54-year-old white man. The tumor was discovered by an ultrasound evaluation for left hydrocele. ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1053/adpa.2002.30607
更新日期：2002-02-01 00:00:00
abstract：:A 54-year-old man presented to his doctor with hematemesis and was found at endoscopy to have an ulcerated lesion in his stomach. A computed tomography scan was performed and revealed a mass in the fundus of the stomach. Multiple other lesions were identified in the liver, lungs, retroperitoneal space, and mesentery. ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2004.03.005
更新日期：2004-06-01 00:00:00
abstract：:Periumbilical skin is unique due to its proximity to intra-abdominal and pelvic structures. In addition to primary skin malignancies, it is a site often involved with metastatic disease. We reviewed the clinical and pathologic features of 77 umbilical malignancies occurring at our institution since 1988. Seventy-seven...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2010.12.004
更新日期：2011-08-01 00:00:00
abstract：:Endometrial stromal tumors (ESTs) of the uterine corpus have a striking propensity to display diverse morphological variations, including sex cord-like, smooth muscle, or skeletal muscle differentiation; fibrous change; myxoid change; or bland endometrioid-type glands. They may also contain rhabdoid, foam, clear, or e...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2005.03.002
更新日期：2005-06-01 00:00:00
abstract：:Pancreatic schwannomas are a rare benign mesenchymal neoplasm of the pancreas. They are thought to arise from the epineurium of either autonomic sympathetic or parasympathetic fibers, which course through the pancreas with the vagus nerve. Large pancreatic schwannomas often undergo cystic change, which causes them to ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2006.12.017
更新日期：2008-08-01 00:00:00
abstract：:We report a case of synovial chondromatosis of the tibiofibular joint in a 25-year-old woman that was diagnosed by fine-needle aspiration (FNA). The patient presented with pain in the left knee and a mass in the popliteal fossa. Synovial chondromatosis usually presents with joint symptoms and is often associated with ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/s1092-9134(00)90015-7
更新日期：2000-04-01 00:00:00
abstract：:Beta-catenin, encoded by the CTNNB1 gene, plays an important role in cell proliferation. Mutations of CTNNB1 are oncogenic in several tumor types and are often associated with a nuclear abnormal expression. However, such mutations have only rarely been reported in non-small cell lung carcinomas and their clinical sign...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2020.151522
更新日期：2020-06-01 00:00:00
abstract：INTRODUCTION:Histiocytic sarcoma is an extremely rare hematologic malignancy of histiocytic origin. Five cases of primary cutaneous histiocytic sarcoma are presented. MATERIALS AND METHODS:Cases of primary cutaneous histiocytic sarcoma were identified using a natural language search from the dermatopathology data base...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章,评审
doi：10.1016/j.anndiagpath.2017.10.004
更新日期：2018-02-01 00:00:00
abstract：:Diffuse large B-cell lymphoma (DLBCL) is the most common type of lymphoma worldwide. The current World Health Organization classification includes several subtypes based on a combination of clinical, immunohistochemical, and genetic differences. Other aggressive variants of B-cell lymphomas, including Burkitt lymphoma...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2016.07.008
更新日期：2016-12-01 00:00:00
abstract：:Pseudomesotheliomatous carcinoma is a rare variant of peripheral adenocarcinoma of the lung that can manifest clinical, radiologic, and pathologic features similar to malignant mesothelioma. We present three patients with pseudomesotheliomatous carcinoma of the lung. In one patient the carcinoma extended beyond the th...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/s1092-9134(99)80042-2
更新日期：1999-06-01 00:00:00
abstract：:The aim of this study was to evaluate the morphological spectrum of chromophobe renal cell carcinoma (CRCC) and diagnostic utility of a panel of three immunohistochemical stains. All cases of CRCC reported between 2002 and 2012 in the Section of Histopathology, Aga Khan University Hospital, were retrieved. A total of ...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2013.06.005
更新日期：2013-12-01 00:00:00
abstract：:Systemic anaplastic large-cell lymphoma is an uncommon type of non-Hodgkin lymphoma characterized by strong expression of the Ki-1 (CD30) antigen. Gastrointestinal involvement typically is less common than in other types of non-Hodgkin's lymphoma. We report a case of CD30-positive anaplastic large-cell lymphoma occurr...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章,评审
doi：10.1053/adpa.2001.25408
更新日期：2001-06-01 00:00:00
abstract：:Hepatocellular carcinoma (HCC) is the second most common primary malignant hepatic tumor in children. It often develops in patients with underlying liver disease. We report the clinicopathologic features of an unusual HCC occurring in an infant who presented with features of Cushing's syndrome due to bilateral adrenal...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2005.12.005
更新日期：2007-02-01 00:00:00
abstract：:The diagnosis of viral infections is an important part of the daily work of a surgical and cytopathologist. Some viral infections, such as human papillomavirus infection of the lower genital tract, are seen commonly, whereas others, such as fatal enteroviral infection, cannot be diagnosed on routine histological exami...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章,评审
doi：10.1016/j.anndiagpath.2006.02.003
更新日期：2006-04-01 00:00:00
abstract：:Sclerosing mediastinitis (SM) is an aggressive fibroproliferative process in the mediastinum that may lead to encasement of mediastinal structures within a dense fibrotic mass. This disease may cause significant clinical complications, morbidity, and even mortality. The etiology and pathogenesis of SM is unclear and i...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2017.01.004
更新日期：2017-04-01 00:00:00
abstract：:Approximately 15% of patients with high-grade cervical intraepithelial neoplasia (CIN 2-3), treated by the loop electrosurgical excision procedure (LEEP) will experience a persistence or recurrence of their disease. The full spectrum of pathologic factors that may be predictive of an increased probability of this even...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2007.01.012
更新日期：2008-02-01 00:00:00
abstract：:Hypereosinophilia (HE) is defined as persistently elevated absolute eosinophil count (AEC) ≥ 1.5 × 109/L, which can be due to a variety of underlying causes. In this study, we investigated the prevalence and spectrum of T-cell lymphoproliferative disorders in 124 consecutive patients with HE by flow cytometric immunop...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2019.151412
更新日期：2020-02-01 00:00:00
abstract：:A 76-year-old man presented with a tumoral lesion in his penis that had all the light microscopic and immunohistochemical features of a squamous cell carcinoma with rhabdoid phenotype. We believe that this is the fourth reported case of squamous cell carcinoma with rhabdoid features and the first one located in the pe...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1053/adpa.2002.36654
更新日期：2002-12-01 00:00:00
abstract：:Littoral cell angioma (LCA) is a rare vascular tumor of the spleen. It has an immunohistochemical staining pattern that is somewhat distinctive but can still be occasionally confused with other vascular and stromal proliferations in the spleen. In this study, LCA was evaluated using Ets-related gene (ERG) and Wilms tu...
journal_title：Annals of diagnostic pathology
pub_type： 杂志文章
doi：10.1016/j.anndiagpath.2015.02.007
更新日期：2015-06-01 00:00:00
