Mohamad Sakibuzzaman, Ryan W Kendziora, Toshi Ghosh, Malvika H Solanki, Amy Lynn Conners, Lisa J Ahlberg, Charles D Sturgis
{"title":"Tiger-Striped PASH: Recognition of a Unique Morphology Allows for a Zippered-Up Diagnosis of Pseudoangiomatous Stromal Hyperplasia of Breast.","authors":"Mohamad Sakibuzzaman, Ryan W Kendziora, Toshi Ghosh, Malvika H Solanki, Amy Lynn Conners, Lisa J Ahlberg, Charles D Sturgis","doi":"10.1155/2021/7697987","DOIUrl":null,"url":null,"abstract":"<p><p>Pseudoangiomatous stromal hyperplasia (PASH) of the breast is histologically characterized by anastomosing and slit-like spaces invested by collagenous stroma and lined by flattened, spindle cells. These clear spaces that may mimic microscopic vascular channels do not contain red blood cells. Immunohistochemistry (IHC) studies may also help to confirm a diagnosis of PASH, with the spindled cells marking positively with CD34 and PR while demonstrating no reactivity with more specific endothelial antigens such as CD31 and ERG. In the current case, a 39-year-old female was diagnosed with cellular PASH of the right breast with unique histological patterns showing \"tiger-striped\" and \"zippered\" histologies. To our knowledge, this is the first report of these unique variant PASH morphologies.</p>","PeriodicalId":45638,"journal":{"name":"Case Reports in Pathology","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2021-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8720602/pdf/","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Reports in Pathology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/2021/7697987","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2021/1/1 0:00:00","PubModel":"eCollection","JCR":"Q4","JCRName":"PATHOLOGY","Score":null,"Total":0}
引用次数: 2
Abstract
Pseudoangiomatous stromal hyperplasia (PASH) of the breast is histologically characterized by anastomosing and slit-like spaces invested by collagenous stroma and lined by flattened, spindle cells. These clear spaces that may mimic microscopic vascular channels do not contain red blood cells. Immunohistochemistry (IHC) studies may also help to confirm a diagnosis of PASH, with the spindled cells marking positively with CD34 and PR while demonstrating no reactivity with more specific endothelial antigens such as CD31 and ERG. In the current case, a 39-year-old female was diagnosed with cellular PASH of the right breast with unique histological patterns showing "tiger-striped" and "zippered" histologies. To our knowledge, this is the first report of these unique variant PASH morphologies.