VOLUME 33 | SUPPLEMENT 2 | MARCH 2020 MODERN PATHOLOGY ABSTRACTS PEDIATRIC AND PERINATAL PATHOLOGY (1842-1868) LOS ANGELES CONVENTION CENTER FEBRUARY 29-MARCH 5, 2020 LOS ANGELES, CALIFORNIA 2020 ABSTRACTS | PLATFORM & POSTER PRESENTATIONS EDUCATION COMMITTEE Jason L. Hornick, Chair William C. Faquin Rhonda K. Yantiss, Chair, Abstract Review Board Yuri Fedoriw and Assignment Committee Karen Fritchie Laura W. Lamps, Chair, CME Subcommittee Lakshmi Priya Kunju Anna Marie Mulligan Steven D. Billings, Interactive Microscopy Subcommittee Rish K. Pai Raja R. Seethala, Short Course Coordinator David Papke, Pathologist-in-Training Ilan Weinreb, Subcommittee for Unique Live Course Offerings Vinita Parkash David B. Kaminsky (Ex-Officio) Carlos Parra-Herran Anil V. Parwani Zubair Baloch Rajiv M. Patel Daniel Brat Deepa T. Patil Ashley M. Cimino-Mathews Lynette M. Sholl James R. Cook Nicholas A. Zoumberos, Pathologist-in-Training Sarah Dry ABSTRACT REVIEW BOARD Benjamin Adam Billie Fyfe-Kirschner Michael Lee Natasha Rekhtman Narasimhan Agaram Giovanna Giannico Cheng-Han Lee Jordan Reynolds Rouba Ali-Fehmi Anthony Gill Madelyn Lew Michael Rivera Ghassan Allo Paula Ginter Zaibo Li Andres Roma Isabel Alvarado-Cabrero Tamara Giorgadze Faqian Li Avi Rosenberg Catalina Amador Purva Gopal Ying Li Esther Rossi Roberto Barrios Anuradha Gopalan Haiyan Liu Peter Sadow Rohit Bhargava Abha Goyal Xiuli Liu Steven Salvatore Jennifer Boland Rondell Graham Yen-Chun Liu Souzan Sanati Alain Borczuk Alejandro Gru Lesley Lomo Anjali Saqi Elena Brachtel Nilesh Gupta Tamara Lotan Jeanne Shen Marilyn Bui Mamta Gupta Anthony Magliocco Jiaqi Shi Eric Burks Gillian Hale Kruti Maniar Gabriel Sica Shelley Caltharp Suntrea Hammer Emily Mason Alexa Siddon Barbara Centeno Malini Harigopal David McClintock Deepika Sirohi Joanna Chan Douglas Hartman Bruce McManus Kalliopi Siziopikou Jennifer Chapman John Higgins David Meredith Sara Szabo Hui Chen Mai Hoang Anne Mills Julie Teruya-Feldstein Beth Clark Mojgan Hosseini Neda Moatamed Khin Thway James Conner Aaron Huber Sara Monaco Rashmi Tondon Alejandro Contreras Peter Illei Atis Muehlenbachs Jose Torrealba Claudiu Cotta Doina Ivan Bita Naini Andrew Turk Jennifer Cotter Wei Jiang Dianna Ng Evi Vakiani Sonika Dahiya Vickie Jo Tony Ng Christopher VandenBussche Farbod Darvishian Kirk Jones Michiya Nishino Paul VanderLaan Jessica Davis Neerja Kambham Scott Owens Olga Weinberg Heather Dawson Chiah Sui Kao Jacqueline Parai Sara Wobker Elizabeth Demicco Dipti Karamchandani Yan Peng Shaofeng Yan Katie Dennis Darcy Kerr Manju Prasad Anjana Yeldandi Anand Dighe Ashraf Khan Peter Pytel Akihiko Yoshida Suzanne Dintzis Francesca Khani Stephen Raab Gloria Young Michelle Downes Rebecca King Joseph Rabban Minghao Zhong Andrew Evans Veronica Klepeis Stanley Radio Yaolin Zhou Michael Feely Gregor Krings Emad Rakha Hongfa Zhu Dennis Firchau Asangi Kumarapeli Preetha Ramalingam Debra Zynger Gregory Fishbein Alvaro Laga Priya Rao Andrew Folpe Steven Lagana Robyn Reed Larissa Furtado Keith Lai Michelle Reid To cite abstracts in this publication, please use the following format: Author A, Author B, Author C, et al. Abstract title (abs#). In “File Title.” Modern Pathology 2020; 33 (suppl 2): page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`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a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b:=('E1:.E96L,%E09% 51'J2J.6%'.E9%(=%W[%M.E29:E5%N2E0%39E.5E.595,%M.'E2K16.'6L%E(%+(:9,%25%5E266%J9'L%M(('%.=E9'%E0959%E'9.E39:E5O%H015,%E09'9%25%.%:99/%=('%:9N% E09'.M91E2K%5(61E2(:5%=('%M.E29:E5%N2E0%W[%+(:9%39E.5E.E2K%/259.59O%c1'%M'9J2(15%'959.'K0%0.5%50(N:%E0.E%W[%K9665%K(:5E2E1E2J96L%9TM'955% 02D0%69J965%(=%A<d%.:/%2E5%'9K9ME('5%d!G%.:/%d\GO%?LM(T2.%25%.%K0.'.KE9'25E2K%=9.E1'9%(=%D'(N2:D%5(62/%E13('5%.:/%N9%0.J9%50(N:% M'9J2(156L%E0.E%A<d%2:K'9.595%E13('%K966%3(E262EL%.:/%2:J.52J9:955%J2.%.KE2J.E2(:%(=%E09%d#GPd\G%.T25%1:/9'%E0959%K(:/2E2(:5O% >2/*:,?%X9%2:J95E2D.E9/%E09%'(69%(=%d\G%2:%W[%+(:9%39E.5E.595%+L%152:D%W[%K966%62:9%F[4SW[S!I%E0.E%/255932:.E95%E(%+(:9O%H(%E025%9:/,% N9%159/%2:/1K2+69%eGR<[GPe.5`%5L5E93%E(%K'9.E9%.:%[4SW[S!Pd\G%Q:(KQ(1E%K966%62:9%E(%+9%159/%.5%.%T9:(D'.=E%2:%&'+-&-*%9TM9'239:E5O% [2:K9%E09%5L5E93%N9%159/%N.5%/(TLKLK62:9%F8(TIS2:/1K2+69,%E015%E09%D'(1M%(=%32K9%E0.E%/2/%:(E%'9K92J9%8(T%2:%E092'%/29E%59'J9/%.5%(1'% K(:E'(6%D'(1MO%-('9(J9',%E(%K'9.E9%0LM(T2K%K(:/2E2(:5,%N9%M9'=('39/%V93('.6%*'E9'L%72D.E2(:%51'D9'L%FV*7IO%R:%(1'%M'9J2(15%9TM9'239:E5,% V*7%9T.K9'+.E9/%[4SW[!%+(:9%39E.5E.525O%R:%E0959%&'+-&-*%9TM9'239:E5,%E0'99%3.2:%9TM9'239:E.6%D'(1M5%N9'9%K(3M.'9/@%X26/%HLM9%[4S W[!,%[4W[S!%P5Dd\GS8cC%.:/%[4W[S!P5Dd\Gf8cCO%W.K0%D'(1M%'9K92J2:D%E09%D9:9E2K.66L%9:D2:99'9/%K966%62:9%N.5%/2J2/9/%2:E(%EN(% 51+D'(1M5@%N2E0%.:/%N2E0(1E%V*7%51'D9'LO% 82/'9(/?%*5%9TM9KE9/,%V*7%2:K'9.59/%='9Y19:KL%(=%+(:9%39E.5E.595%2:%K(:E'(6%32K9%.:/%[4W[S!%P5Dd\GS8cC%D'(1M5,%N0269%2:%E09%D'(1M% N2E0%[4W[S!P5Dd\Gf8cC,%E09%d\G%Q:(KQ(1E%M'9J9:E9/%E025%9==9KEO%-('9(J9',%3.)('2EL%(=%39E.5E.595%.'252:D%2:%[4W[S!P5Dd\Gf8cC%32K9% N9'9%2:2E2.E9/%+L%E09%K6(:95%(=%W[%K9665%N2E0(1E%d\G%D9:9%3(/2=2K.E2(:,%.5%2:/2K.E9/%+L%8A*%59Y19:K2:D,%=1'E09'%K(:=2'32:D%E09%'(69%(=%d\G% 2:%W[%/255932:.E2(:O%H(%K(:=2'3%E0959%'9516E5,%N9%M9'=('39/%2331:(025E(K09325E'L%.:/%X95E9':%+6(E%N2E0%d\G%.:E2+(/L%2:%M'23.'L%E13('% .:/%.66%39E.5E.E2K%E255195O% B+,09'/*+,/?%H025%/.E.%51DD95E5%E0.E%d\G%'9K9ME('%M6.L5%.:%23M('E.:E%'(69%2:%WN2:D%[.'K(3.%39E.5E.525,%95M9K2.66L%2:%0LM(T2.S2:/1K9/% +(:9%/255932:.E2(:O%H09'9=('9,%E.'D9E2:D%d\G%'9K9ME('%3.L%+9%.%:9N%E09'.M91E2K%M.E0%=('%M.E29:E5%N2E0%W[%+(:9%39E.5E.595O%% !"##% &+51;+9+:*0%),.%P9+K%B7(+62(5*0%>*/0+5.),02/%*,%@*9)(25)9%42.*)(5*0%@+,2%&)55+K%@*+1/*2/% *./26%*039/!,%e0'25E(M09'%H('39L!,%*69T.%[2//(:#% !P#:.+,'&-./$&)0+19%**:+*;+6.<&9&'.5+G.?+Q#-.'5+CR5+8P#:.+,'&-./$&)0+19%**:+*;+6.<&9&'.5+".$)S/**>5+CR% >*/09+/'52/?%*./26%*039/@%A(:9B%e0'25E(M09'%H('39L@%A(:9B%*69T.%[2//(:@%A(:9% @)0A:5+',.?%&26.E9'.6%+(:9%3.''(N%5.3M62:D%25%'9K(339:/9/%=('%5E.D2:D%(=%6L3M0(3.%.:/%5(62/%('D.:%3.62D:.:K295,%0(N9J9',%(:6L%=9N% 5E1/295%0.J9%9J.61.E9/%E09%.KE1.6%3('M0(6(D2K%.:/P('%=6(N%KLE(39E'2K%/2==9'9:K95O%H09%5E1/L%.235%E(%'9J29N%E09%1E262EL%(=%+26.E9'.6%5.3M62:D%