Oncology Commons^™

Developing An Enhanced 7-Color Multiplex Ihc Protocol To Dissect Immune Infiltration In Human Cancers., Zhaoyu Sun, Richard Nyberg, Yaping Wu, Brady Bernard, William L. Redmond

Articles, Abstracts, and Reports

The TSA Opal multiplex immunohistochemistry (mIHC) protocol (PerkinElmer) has been used to characterize immune infiltration in human cancers. This technique allows multiple biomarkers to be simultaneously stained in a single tissue section, which helps to elucidate the spatial relationship among individual cell types. We developed and optimized two improved mIHC protocols for a 7-color panel containing 6 biomarkers (CD3, CD8, CD163, PD-L1, FoxP3, and cytokeratin (CK)) and DAPI. The only difference between these two protocols was the staining sequence of those 6 biomarkers as the first sequence is PD-L1/CD163/CD8/CK/CD3/FoxP3/DAPI and the second sequence is FoxP3/CD163/CD8/CK/CD3/PD-L1/DAPI. By comparing PD-L1/FoxP3 staining in …

Sequential Complications Of Hypercalcemia, Necrotizing Granulomatous Vasculitis, And Aplastic Anemia Occurring In One Patient With Angioimmunoblastic T-Cell Lymphoma., Sriman Swarup, Jonathan Kopel, Kyaw Zin Thein, Kaiser Tarafdar, Khatrina Swarup, Seshadri Thirumala, Donald P Quick

Articles, Abstracts, and Reports

In this case report of a patient with angioimmunoblastic T-cell lymphoma (AITL), we describe the occurrence of three sequential complications that have been reported uncommonly in this disease subtype. Firstly, the patient developed hypercalcemia due to elevated 1,25-didydroxyvitamin D. Although hypercalcemia in AITL is not rare (1-2% incidence), this case was unusual in that the complication developed when disease appeared stable and symptomatically, he was doing well otherwise. Hypercalcemia surprisingly resolved a few months later at a time when his disease appeared to be progressing. A year later, the patient presented with digital ischemia necessitating partial amputation of a finger. …

Large Pseudoencapsulated Subcutaneous Angiomyxoma: Surgical Management., Christine M Shaver, Steven E Kolker, Richard G Bennett

Articles, Abstracts, and Reports

No abstract provided.

Clear Cell Carcinoma Of The Pelvic Side Wall Arising From Endometriosis., Lisa N Abaid, John S Cupp, Miles Chang, Steven R Beanes, Bram H Goldstein

Articles, Abstracts, and Reports

Endometriosis is a condition wherein an ectopic layer of endometrial tissue arises in an extra-uterine location, often effecting significant pelvic pain and infertility. While very uncommon, there have been reported cases of endometriosis undergoing malignant transformation, frequently involving the ovaries and seldom in extra-gonadal regions. We recount a case depicting a 63 year-old woman who presented with an apparent inguinal hernia in 2017; she was ultimately diagnosed with a pelvic side wall clear cell carcinoma and attendant metastatic disease to the medial groin, which emanated from endometriosis. Malignant transformation of endometriosis identified in the pelvic side wall is a very …

Gastric Hibernoma: A Novel Location And Presentation Of A Rare Tumor., Shane P Smith, Andrew F Feczko, Matias Mihura, Jey-Hsin Chen, Alexander S Farivar

Articles, Abstracts, and Reports

We present a case of gastric hibernoma, an unusual tumor with a location novel to the literature. A 39-year-old female presented with one year of upper gastrointestinal bleeding and dysphagia. Gastroenterology performed an esophagogastroduodenoscopy with ultrasound and identified a 6 cm mass within the muscularis propria of the antrum. Computed tomography demonstrated a 9.7 × 7.8 × 4.8 cm

Tissue Specific Origin, Development, And Pathological Perspectives Of Pericytes., Tomoko Yamazaki, Yoh-Suke Mukouyama

Articles, Abstracts, and Reports

Pericytes are mural cells surrounding blood vessels, adjacent to endothelial cells. Pericytes play critical roles in maturation and maintenance of vascular branching morphogenesis. In the central nervous system (CNS), pericytes are necessary for the formation and regulation of the blood-brain barrier (BBB) and pericyte deficiency accompanies CNS diseases including multiple sclerosis, diabetic retinopathy, neonatal intraventricular hemorrhage, and neurodegenerative disorders. Despite the importance of pericytes, their developmental origins and phenotypic diversity remain incompletely understood. Pericytes express multiple markers and the origin of pericytes differs by tissue, which may cause difficulty for the identification and understanding of the ontogeny of pericytes. Also, …

Characteristics Associated With Requests By Pathologists For Second Opinions On Breast Biopsies., Berta M Geller, Heidi D Nelson, Donald L Weaver, Paul D Frederick, Kimberly H Allison, Tracy Onega, Patricia A Carney, Anna N A Tosteson, Joann G Elmore

Articles, Abstracts, and Reports

AIMS: Second opinions in pathology improve patient safety by reducing diagnostic errors, leading to more appropriate clinical treatment decisions. Little objective data are available regarding the factors triggering a request for second opinion despite second opinion consultations being part of the diagnostic system of pathology. Therefore we sought to assess breast biopsy cases and interpreting pathologists characteristics associated with second opinion requests.

METHODS: Collected pathologist surveys and their interpretations of 60 test set cases were used to explore the relationships between case characteristics, pathologist characteristics and case perceptions, and requests for second opinions. Data were evaluated by logistic regression and …

Multiparametric Immune Profiling In Hpv- Oral Squamous Cell Cancer., Zipei Feng, Daniel Bethmann, Matthias Kappler, Carmen Ballesteros-Merino, Alexander Eckert, R Bryan Bell, Allen Cheng, Tuan Bui, Rom Leidner, Walter Urba, Kent Johnson, Clifford Hoyt, Carlo Bifulco, Juergen Bukur, Claudia Wickenhauser, Barbara Seliger, Bernard A Fox

Articles, Abstracts, and Reports

Evaluation of T lymphocyte frequency provides prognostic information for patients with oral squamous cell cancer (OSCC). However, the effect of simultaneously evaluating T cell frequency and assessing suppressive elements and defects in antigen-processing machinery (APM) has not been clarified. Simultaneous characterization of CD3+, CD8+, FoxP3+, CD163+, and PD-L1+ cells using multispectral imaging was performed on sections from 119 patients with HPV- OSCC. Expression of β2-microglobulin, MHC class I heavy chain, and large multifunctional peptidase 10 was quantified, and all data were correlated with patient outcome. We found that, consistent with previous reports, high numbers of CD8+ T cells at the …

Pathologists' Diagnosis Of Invasive Melanoma And Melanocytic Proliferations: Observer Accuracy And Reproducibility Study., Joann G Elmore, Raymond L Barnhill, David E Elder, Gary M Longton, Margaret S Pepe, Lisa M Reisch, Patricia A Carney, Linda J Titus, Heidi D Nelson, Tracy Onega, Anna N A Tosteson, Martin A Weinstock, Stevan R Knezevich, Michael W Piepkorn

Articles, Abstracts, and Reports

No abstract provided.