Our histology staff has a combined 44 years of experience dissecting, processing, and staining skin.  This specialized expertise enables us to give individualized attention to the tiniest detail of the anatomic features of each skin specimen.  All our histologists are supervised by and work closely with our Dermatopathologists

As an illustration of the exceptional care taken at Rabkin Dermatopathology Laboratory, relevant specimens are digitally photographed prior to dissection so that our Dermatopathologists can identify clinically relevant features and correlate them with their microscopic analysis.

Christine Johnson
Christine Johnson

Histology Manager

Christine joined Rabkin Dermatopathology Laboratory in 1998 as a Medical Secretary. In 2001 Christine transferred to the Histology Department, and after an apprenticeship there, she happily took on responsibilities as a Histology Assistant and currently as the Histology Manager. Christine is working towards Certification with the ASCP.

Rachael Baumcratz
Rachael Baumcratz

Histology Technician, HT(ASCP)

Rachael attended Gannon University in Erie, PA from 2004-2008 and graduated with a Bachelor of Science degree in biology.  She received her HT(ASCP) certification in January 2015. 
Rachael joined the Rabkin Dermatopathology Laboratory Team as a Histology Technician in July 2017.  Prior to joining Rabkin, Rachael worked at Helomics Corporation from 2009-2017.  During her time at Helomics, she worked as an Immunohistochemistry Technologist for 5 years and used this experience to sit for the HT(ASCP) exam.

Shannon Sims
Shannon Sims


Shannon attended Chatham University in Pittsburgh, PA from 2009-2013 and graduated with a Bachelor’s Degree in Biology. She started at UPMC Presbyterian in 2015 as a Histology Assistant in conjunction with attending The Histotechnology School of UPMC. She graduated from the program in 2015 and received her HTL(ASCP) certification in January 2016. She spent a year and a half as a histotechnologist where she specialized in special stains and scant tissue preparation. Shannon joined Rabkin Dermatopathology in December of 2017 and is currently pursuing her QIHC.

Contact - Conveniently Located


440 William Pitt Way
Pittsburgh, PA 15238


Monday-Friday: 8am-5pm
Saturday & Sunday: Closed


+1 800.786.3054 - Toll Free
+1 412.968.9266 - Local
+1 412.968.5673 - Fax



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