The Histology of Dermatological Specimens - Part 1 (Online CE Course)

(based on 175 customer ratings)

Author: Diana Harrington, BS, HT(ASCP)
Reviewers: Brooke Eguia, BS, MS, HTL(ASCP) and Carla Shoffeitt, MSM, HT(ASCP)

A wide variety of topics on skin are discussed from morphology and grossing to Mohs surgery. The goal of this course is to expose histotechnologists and other pathology laboratory personnel to the various aspects of dermatopathology and shed light on the early stages of skin specimen processing.

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Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 1 hour(s)
Approved through 10/31/2026
Approved through 10/31/2026

Objectives

  • Describe the various specimen types received in the dermatopathology laboratory and why it is important to understand skin morphology.
  • Summarize the various steps taken to maintain patient/specimen integrity and accuracy throughout the collection and grossing process.
  • Identify the different layers of skin and the various cells that make up each layer.
  • Define the most common grossing protocols for biopsy shaves and punches of various sizes.
  • Describe how excisions are grossed, with orientation and without, including the identification of potential grossing errors and how to prevent them.
  • Define the Mohs technique used in dermatology.
  • Compare and contrast the various steps of Mohs processing and paraffin processing.

Customer Ratings

(based on 175 customer ratings)

Course Outline

Click on the links below to preview selected pages from this course.
  • Introduction to Skin
  • Skin Sample Collection and Processing
      • Skin Specimen Collection: Biopsies and Excisions
      • Overview of Collection Procedures
      • Skin Sampling Procedures
      • Which of the statements are true and reflect the correct collection procedures outlined in this course?
      • Match the surgical procedure to the shape and characteristics of the sample produced.
  • Skin Histomorphology
      • Overview of Skin Layers
      • Select the option that has the skin layers in order, starting with the outer layer and ending with the inner layer furthest from the skin's surface.
      • Epidermis
      • True or False: The most common type of cell found in the epidermis is called the keratinocyte.
      • Dermis
      • Subcutis (Hypodermis)
      • Which of the following cells or structures are not characteristic of the dermal layer?
      • Relevance of Skin Morphology in the Laboratory
  • Skin Grossing Techniques: Biopsies
  • Skin Grossing Techniques: Excisions
      • Grossing Skin Excisions Without Orientation
      • True or False: One color of ink can be used for excisions without orientation indicators and the distal tips can be submitted in one cassette.
      • Grossing Skin Excisions With Orientation
      • True or False: Commonly, the excision that has an indicator on one of the edges can be treated like the face of a clock and arbitrarily assign the 12 ...
  • Prevention of Skin Grossing Errors
  • Mohs Skin Surgery
      • Mohs History
      • Mohs Surgery Overview
      • Mohs Procedure versus Standard Excisions
      • True or False: Mohs surgery aims to excise the affected area while precisely preserving normal surrounding tissue.
      • Which of the following statements are true about Mohs surgical excisions?
  • Conclusion
      • Summary of Dermatological Histology
  • References
      • References

Additional Information

Level of Instruction: Basic
Intended Audience:  Clinical laboratory histotechnologists, histotechnicians, and other medical laboratory personnel interested in this subject matter. This course is also appropriate for histology and medical laboratory science students, pathology residents, and practicing pathologists.
Author Information: Diana Harrington, BS, HT(ASCP), is a histotechnologist at The Dermatology Center of Indiana. Since graduating from Indiana University, she has worked as a medical laboratory scientist and histotechnologist in various hospital laboratories. Her experience led her to teach IU students as a Clinical Education Supervisor and create the Histotechnology Program as the Program Director at Keiser University in Florida.
Reviewer Information
Brooke Eguia, BS, MS, HTL(ASCP), is the Pathology Technical Supervisor at Fairview Southdale Hospital in Edina, Minnesota. She graduated from St. Cloud State University with a Bachelor of Science degree in general biology and from Capella University with a Master of Science in Human Service with a specialization in Health Care Administration. As a primary health career mentor to high school students, Brooke satisfied her desire to train and teach histotechnicians. She also worked as adjunct faculty at Rasmussen College as a medical assistant laboratory techniques instructor. She has recently focused on proctoring histology students in clinical/classroom progress and exam preparation.
Carla J. Shoffeitt, MSM, HT(ASCP), is the Manager of the Pathology Department of Emory St. Joseph’s Hospital of Emory Healthcare in Atlanta, Georgia. She holds a Master of Science in Healthcare Management and a Bachelor of Science in Biology from Troy University, Troy, Alabama. She is certified as a Histotechnician and has over 25 years of experience in Histology.
Course Description: This course discusses various skin topics, from morphology and grossing to Mohs surgery. It aims to expose histotechnologists and other pathology laboratory personnel to the various aspects of dermatopathology and shed light on the early stages of skin specimen processing.

Fite stain on skin to detect Leprosy.


formalin vials


Layers of skin


Skin cross section