The American Society of Dermatopathology

Consultations in Dermatopathology


Our Consultations in Dermatopathology are a popular part of the ASDP Annual Meeting every year. For 2020, we're offering a full slate of consultations virtually. 

1.25 AMA PRA Category 1 Credits™ per session

Fee: $75 per session

These optional 75-minute sessions give you a small group educational opportunity with an expert in dermpath. Sessions are limited to 30 attendees. You can register for up to five consults. See the schedule of Consultations below.


  • Sessions will be offered in the afternoons, Thursday, November 5 - Wednesday, November 11.
  • Each session is scheduled for one hour and 15 minutes.
  • All sessions will have a maximum of 30 attendees.
  • Registrants are limited to register in advance for a total of five Consultation in Dermatopathology sessions. 
  • Registration fee per session is required.

Note: Select consultations with care. All selections are final. 

If you need assistance with online registration, contact ASDP staff for assistance.

Consultation Schedule

Thursday, November 5

1:00 p.m. - 2:15 p.m. CST
Consult 1 Signs and Signals for Decoding Cutaneous Hematolymphoid Disease
Consult Director: Melissa Pulitzer, MD
Every day we struggle to determine whether patients should receive chemotherapy, targeted therapies, immunotherapies or stem cell transplants, based on the features of hematolymphoid cells in skin biopsy specimens. This session will include cases with follow–up. Specific clinical, histologic, immunohistochemical and molecular clues that factored into the work up will also be discussed, to guide therapeutic decisions resulting in improved patient outcomes.
Consult 2 Key Histological Differential Diagnoses Involving Pigmented Epithelioid Melanocytoma
Consult Director: Artur Zembowicz, MD, PhD
This session will illustrate salient features of Carney complex-associated and sporadic, protein kinase R 1alpha and kinase fusion-associated and pigmented epithelioid melanocytomas. Special attention will be given to similarities and differences to other tumors that are often confused with pigmented epithelioid melanocytoma, such as: blue nevus, cellular blue nevus, deep penetrating tumor, Spitz nevus, pigment-synthesizing melanoma, blue nevus like metastatic melanoma, etc.
Consult 3 Difficult Medical-Legal Cases in Dermatopathology
Consult Director: David S. Cassarino, MD, PhD
Potential medicolegal cases are a constant source of concern for pathologists and dermatologists, especially as melanoma misdiagnosis remains the most common source of claims.  However, many other types of cases can also present medicolegal issues, including epithelial tumors, hematolymphoid neoplasms, and spindle cell lesions, with the potential for both under-diagnosis and over-diagnosis leading to consequently inappropriate treatments.
Consult 4 Tough Melanocytic Lesions
Consult Director: Dirk M. Elston, MD
This session will focus on difficult melanocytic tumors along with an approach to evaluation and management.
2:45 p.m. - 4:00 p.m. CST
Consult 5 Introduction to Cutaneous Lymphomas
Consult Director: David J. DiCaudo, MD
This introductory session will cover the most common and well-recognized types of primary cutaneous T-cell lymphoma and B-cell lymphoma. Microscopic, immunohistochemical and clinical features will be discussed.
Consult 6 Pseudosarcomatous Soft Tissue Proliferations: Know Which Entities Are All Bark and No Bite
Consult Director: Ryanne Brown, MD
This session will review best practices to avoid over-diagnosis of pseudosarcomatous proliferations that can grow rapidly or look cytologically atypical, but pose little to no risk to the patient. Recent ancillary testing developments with the potential to assist in diagnosing these challenging lesions will also be discussed.
Consult 7 Current Issues in Vulvar Pathology
Consult Director: M. Angelica Selim, MD
This session will focus on a diversity of vulvar cases with emphasis on clinical presentation, histologic clues and the use of ancillary tests. The case-based presentation will cover a wide spectrum of entities, ranging from inflammatory diseases to glandular lesions and tumors affecting women of different ages. 

Friday, November 6

1:00 p.m. - 2:15 p.m. CST
Consult 8 Advanced Alopecia
Consult Director: Leonard C. Sperling, MD
This session is intended for individuals who are comfortable with horizontal sections and the most common forms of hair loss as seen in horizontal sections. Less common entities, as well as histologic mimics that can represent pitfalls or diagnostic challenges will also be discussed. 
Consult 9 Pediatric Dermatopathology: Instructive Cases from the Children’s Hospital of Philadelphia
Consult Director: Adam I. Rubin, MD
This session will review both relatively common and rare, yet no less important, inflammatory and neoplastic entities seen in neonates, infants, and children. Key teaching points and considerations specific to the diagnosis and care of pediatric patients will be emphasized.
Consult 10 Understanding Molecular Testing Applications and Its Impact in the Various Cutaneous Neoplasms
Consult Director: Ariv Arasan Karunamurthy, MD
This session will focus on concepts behind various molecular applications, from PCR to next generation sequencing, from karyotyping to SNP array to genome sequencing. How and when to apply them in the diagnosis and treatment in various cutaneous neoplasms will also be discussed.
Consult 11 Everything You Wanted to Know About Immunohistochemistry but Were Afraid to Ask
Consult Director: Timothy H. McCalmont, MD
This session will offer insight into immunoperoxidase staining strategies using a case-based format. Scenarios and pitfalls of importance to the diagnosis and stratification of melanocytic, epithelial, adnexal, and mesenchymal tumors will be reviewed.
2:45 p.m. – 4:00 p.m. CST
Consult 12 Diagnostic Challenges in Cutaneous Vascular Tumors
Consult Director: Steven D. Billings, MD
This session will cover a variety of challenging vascular tumors, including unusual benign vascular tumors, vascular tumors of intermediate malignancy and malignant vascular tumors. Histologic features and differential diagnoses will be emphasized.
Consult 13 Ophthalmic Pathology for Dermatopathologists: Focus on Adnexal Neoplasms of the Eyelid and Conjunctiva
Consult Director: Artur Zembowicz, MD, PhD
Diagnosis of adnexal neoplasms and melanocytic lesions in the eyelid and conjunctiva are among the most challenging tasks for dermatopathologists. This session will familiarize dermatopathologists with the key features of sebaceous carcinoma, most frequently encountered sweat gland tumors and unique aspects of melanocytic pathology in the eyelid and conjunctiva. 
Consult 14 Distinguishing Primary from Metastatic Tumors to the Skin
Consult Director: David S. Cassarino, MD PhD
Metastatic tumors of the skin include a wide array of tumors, which can come from any primary source in the body, including other cutaneous sites. In many cases, these tumors can be difficult to distinguish from primary cutaneous tumors, especially without a complete clinical history, which is often not provided to the dermatopathologist. This session will highlight several interesting and challenging cases of metastatic tumors of the skin. Areview of selected immunohistochemical stains, which can be utilized in the evaluation, will also be discussed.
Consult 15 Look-alikes in Neoplastic Dermatopathology
Consult Director: David J. DiCaudo, MD
This session will focus on “wolves in sheep’s clothing”, e.g., malignant neoplasms resembling benign entities. Emphasis will be given to recognizing subtle clues and methods to confirm the correct diagnosis.

Saturday, November 7

1:00 p.m. - 2:15 p.m. CST
Consult 16 Basic and Advanced Nail Pathology
Consult Director: Adam I. Rubin, MD
This session will provide a comprehensive overview of the nail unit ranging from basic anatomy and inflammatory patterns, to the most up-to-date controversies regarding nail unit tumors. Get ready for a whirlwind tour of the nail unit through clinical, surgical and pathologic correlations!
Consult 17 Infections and Infestations
Consult Director: Dirk M. Elston, MD
This session will include a wide range of infections and infestations with an emphasis on key diagnostic features.
Consult 18 Inpatient Dermatopathology: Instructive Cases from the Dermatology Inpatient Consultation Service
Consult Director: Kerri E. Rieger, MD
This consultation will provide a review of the histopathologic findings in a variety of inflammatory disorders seen by the dermatology inpatient consultation service. Topics included will range from commonly encountered drug eruptions to the more recently described lichenoid, blistering, and granulomatous reactions associated with immunotherapies and targeted therapies. More rarely encountered entities such as nutritional deficiencies and acute inflammatory edema will also be discussed.
Consult 19 High-Risk Non-Melanoma Skin Cancers
Consult Director: Patrick O. Emanuel, MBChB, Dip Arts
Though non-melanoma skin carcinomas (including basal cell carcinoma and squamous cell carcinoma) have traditionally been considered low-risk lesions, high-risk lesions are becoming increasingly recognized. This session will highlight stratifying risk in these common tumors so they can be adequately staged and their risk communicated in the dermatopathology report. 
2:45 p.m. - 4:00 p.m. CST
Consult 20 Comprehensive Diagnosis of Melanocytic Neoplasia by IHC, Molecular and Conventional
Consult Directors: Gregory A. Hosler, MD, PhD and Drazen M. Jukic, MD, PhD
This session is designed for practicing dermatopathologists and trainees interested in learning a practical algorithmic approach to tackling difficult melanocytic lesions. H&E clues and effective use of immunohistochemistry and molecular tools will be emphasized.
Consult 21 Quandaries in Hospital Inpatient Dermatopathology
Consult Director: Daniel D. Miller, MD
This session will review common challenges in hospital inpatient dermatopathology, including drug eruptions, graft-versus-host disease, vasculopathies and soft tissue infections. Evidence-based approaches to diagnosis for these challenging scenarios will be emphasized.
Consult 22 Vascular Lesions
Consult Director: Omar P. Sangueza, MD
This session will highlight clinical, histological and immunohistochemical features of common and unusual vascular conditions Special attention will be given to prognosis and patient care.
Consult 23 Blistering Disorders and Direct Immunofluorescence: Practical Advice for Daily Practice
Consult Director: Sara C. Shalin, MD
How can direct immunofluorescence studies be used to maximize diagnostic yield, and how can the dermatopathologist avoid pitfalls in interpretation? Which strategies can be implemented in report sign out that will ensure appropriate triage or follow up testing for the patient, particularly when direct immunofluorescence studies are not available? This session will discuss histologic patterns of blistering disorders and vasculitis as well as the utility of direct immunofluorescence in a variety of immune-mediated cutaneous diseases using photographic images of DIF studies and clinical images to complement virtual slides.

Sunday, November 8

1:00 p.m. - 2:15 p.m. CST
Consult 24 Panniculitis and Other Puzzles
Consult Director: Maxwell A. Fung, MD
This session will include an interactive review of an array of panniculitis cases, ranging from classic to more unusual. Multiple examples of a disease may be shown to demonstrate the range of histopathologic appearances that may be encountered in relatively common forms of panniculitis.
Consult 25 Alopecia Pitfalls
Consult Director: Catherine M. Stefanato, MD, FRCPath
In recent years, the increased number of scalp biopsies in alopecia has contributed to improved confidence in distinguishing the histopathologic characteristics of ‘classic’ scarring and non-scarring alopecias, as well as the spectrum of their presentation. Occasionally, however, histopathologic ‘dogmas’ have been disproven. Pitfalls and clues enabling diagnosis of alopecia will be reviewed on both horizontal and vertical histologic histologic sections.  The value and importance of clinical-pathologic correlation and of ancillary studies to increase diagnostic yield will also be discussed.
Consult 26 Lesions I Have Learned From
Consult Director: Philip E. LeBoit, MD
This session will emphasize cases that are at the limits of our knowledge. Special attention will be given to cases exemplifying emerging entities that correlate with advances in genomics, including melanocytic neoplasms. 
Consult 27 Cutaneous Lymphoma or Not
Consult Director: Lyn McDivitt Duncan, MD
While histopathology is necessary for diagnosing lymphoma in the skin, clinical pathological correlation is essential to accurate diagnosis. This session will highlight cases from the multidisciplinary Cutaneous Lymphoma program at the Massachusetts General Hospital in Boston. Differential diagnoses and histopathological and clinical clues will also be discussed. 
2:45 p.m. - 4:00 p.m. CST
Consult 28 Atypical and Malignant Adnexal Neoplasms
Consult Director: David S. Cassarino, MD, PhD
Cutaneous adnexal tumors encompass a wide array of benign and malignant tumors of various types, which often prove challenging to definitively classify due to overlapping features.. This session will focus on 10 cases of challenging atypical and malignant adnexal tumors, and review important histologic and immunohistochemical findings to aid in their diagnosis. 
Consult 29 Immunohistochemistry and Molecular Testing in Melanocytic Tumors: What Should You Order?
Consult Director: Jeffrey P. North, MD
The number of ancillary stains/tests to assist with diagnostically challenging melanocytic neoplasms continually increases. This session will focus on biopsies of difficult melanocytic lesions, and how immunoperoxidase stains and molecular testing can assist with accurate diagnosis of difficult melanocytic tumors.
Consult 30 Role of Immunohistochemistry in Detecting Molecular Abnormalities
Consult Director: Mai P. Hoang, MD
Immunostains can serve as cost-effective diagnostic markers in a variety of cutaneous and soft tissue tumors by detecting the underlying chromosomal translocations, gene amplifications, specific mutations, and gene deletion or loss of functions. This session will highlight the role of immunohistochemistry as a screening tool for genetic syndromes.
This session will not be available for on-demand viewing.
Consult 31 Instructive Cases from the UCSF Cutaneous Lymphoma Clinic
Consult Director: Laura B. Pincus, MD
This interactive session will encompass clinical and histopathologic presentation of a variety of straightforward and challenging cutaneous lymphoma cases from the USCF multidisciplinary cutaneous lymphoma clinic.. Unusual forms of cutaneous lymphoma will also be discussed.

Monday, November 9

1:00 p.m. - 2:15 p.m. CST
Consult 32 Mycosis Fungoides, Yes or No?
Consult Director: Alexandra C. Hristov, MD
This session will review clinicopathologic features of mycosis fungoides variants that mimic dermatitis, such as early mycosis fungoides and ppd-like mycosis fungoides, as well as cases of dermatitis that resembles mycosis fungoides. Important clues to the correct diagnosis for each case will also be highlighted.
Consult 33 Nail Pathology: Basics and Beyond
Consult Director: Beth S. Ruben, MD
This interactive session will begin with a brief review of nail pathology basics including normal anatomy and processing pearls, followed by examination of the most important entities in the realm of nail unit pathology and broad range of differential diagnoses. Entities discussed will include pigmented lesions (melanonychia), epithelial and other neoplasms, as well as inflammatory and infectious diseases.
Consult 34 Evolving Concepts: From Nevi to Melanoma
Consult Director: Iwei Yeh, MD, PhD
This session will provide a review of the histopathologic, clinical and molecular features of congenital, conventional, blue, and Spitz nevi, which form the basis for the 2018 WHO classification of melanoma. Various melanocytomas, melanocytic tumors with more than a single oncogenic alteration, including deep penetrating, BAP1-inactivated, and PRKAR1A-inactivated melanocytomas together with the practical use of immunohistochemistry and molecular diagnostics to assist in differentiating these low-grade tumors from melanoma will also be discussed.
2:45 p.m. - 4:00 p.m. CST
Consult 35 Basic Alopecia
Consult Director: Eleanor A. Knopp, MD
This session will cover the fundamentals of the approach to alopecia biopsy including optimal processing techniques, the basics of counting hairs, anatomy of anagen and catagen/telogen hairs, and a step-by-step approach to working through a biopsy to reach a diagnosis. Examples of important diagnoses will be covered with clinical correlations. 
Consult 36 Challenging Inpatient Skin Biopsies
Consult Director: Mai P. Hoang, MD
Accurate diagnosis of an urgent inpatient skin biopsy results in appropriate treatment, shortened hospitalization and decreased cost. This session will encompass the entities demonstrating the histologic and clinical findings of dermatologic conditions encountered in the inpatient setting in a case-based approach.
This session will not be available for on-demand viewing.
Consult 37 7 Deadly Sins: 7 Cutaneous Soft Tissue Tumors You Never Want to Miss
Consult Director: Jared M. Gardner, MD
This session will focus on seven of the most serious, clinically relevant malignant cutaneous soft tissue tumors, all of which have a tendency to be misdiagnosed both clinically and microscopically. Typical clinical and pathologic features, ancillary testing to confirm the diagnosis, important morphologic variants, and specific scenarios, in which the diagnosis may be more easily missed, will also be addressed.
Consult 38 Melanoma and Its Mimics
Consult Director: Shane A. Meehan, MD
Given the subjective nature of histologic interpretation, the diagnosis of melanoma and its mimics can be fraught with challenges. In this session, unusual cases of melanoma and melanocytic nevi will be reviewed, and the limitations of immunohistochemistry and molecular techniques in the analysis of these lesions will be discussed.

Tuesday, November 10

1:00 p.m. - 2:15 p.m. CST
Consult 39 The Spectrum of Autoimmune Diseases in Dermatopathology
Consult Director: Alina G. Bridges, DO
This session will provide updates and review autoimmune connective tissue diseases. A diagnostic approach to these disorders will be presented with an emphasis on clinical pathologic correlation and appropriate evaluation. The knowledge gained can be applied to provide optimal patient care and improve outcomes.
Consult 40 Mucosal Melanocytic Lesions
Consult Director: Priyadharsini Nagarajan, MD, PhD
Mucosal melanocytic lesions are rare and pose significant diagnostic challenges. This consultation session will review diagnostic features of common mucosal melanocytic lesions,  demonstrate unique growth patterns and immunohistochemical features of mucosal melanoma, and establish a practical approach to assess mucosal melanoma and margin status, to enable optimal histopathologic evaluation and establish accurate diagnosis.
Consult 41 Challenging Clinicopathologic Correlations
Consult Director: Clay J. Cockerall, MD
This session will present a series of challenging inflammatory and neoplastic disorders that were diagnosed using primarily clinico-pathologic correlation. Audience participation will be encouraged.
2:45 p.m. - 4:00 p.m. CST
Consult 42 Navigating the Blue Sea: Adventures in Cutaneous Lymphoma
Consult Director: Jinah Kim, MD
This session will highlight challenging cutaneous lymphomas as well as their inflammatory mimics. Focus will be given to methods designed to improve diagnostic accuracy and pearls to keep you on the right track.
Consult 43 Targeted and Checkpoint Inhibitor Therapy Associated Cutaneous Toxicities
Consult Director: Jonathan L. Curry, MD
Skin toxicities from targeted and checkpoint inhibitor therapy are increasingly encountered and important to diagnose. This session will provide a comprehensive histopathologic examination of the diverse types of skin toxicities and discuss differential diagnoses, pitfalls, and mechanisms that drive these adverse skin reactions.
Consult 44 A Practical Pattern-based Approach to Cutaneous Soft Tissue Tumors
Consult Director: Rajiv M. Patel, MD
This session will use a case-based format to provide a practical pattern-based approach to important diagnostic dilemmas encountered in cutaneous soft tissue tumor pathology. Critical differentiating morphologic features and evidence-based, practical and cost-effective approach to the use of ancillary diagnostic tools will be emphasized.

Wednesday, November 11

1:00 p.m. - 2:15 p.m. CST
Consult 45 Approach to Alopecia Biopsy
Consult Director: Lynne J. Goldberg, MD
This session will explore the most common causes of hair loss in transverse section. The approach allows for both collation within a given specimen and comparison between specimens.
Consult 46 Oral Pathology Roundtable Review: Common, Uncommon and Challenging Cases
Consult Director: Richard C. Jordan, MD
This session will include a range of common and unusual mucosal conditions supplemented with selected salivary gland tumors that may be encountered in a dermatopathology practice. Diagnostic methods utilized in evaluation of each case, and review of important clinical findings and the implications of each diagnosis will also be discussed.
Consult 47 Cutaneous T-cell Lymphoma: New Challenges, New Tools, New Approaches
Consult Director: Roberto A. Novoa, MD
The past few years have seen a steady transformation in the diagnosis and management of cutaneous T-cell lymphoma. Through case-based discussion, this session will focus on new molecular tests that may aid with difficult diagnoses or therapeutic decision-making, interpretation of benign and aggressive mimics of mycosis fungoides, with an emphasis on the use and limitations of new assays, and skin eruptions associated with the treatment of cutaneous lymphoma patients.
Consult 48 Cutaneous Adnexal Tumors: A Practical Reappraisal of Immunohistochemical Use
Consult Director: Doina Ivan, MD
Dermatopathologists often perceive the diagnosis of cutaneous adnexal neoplasms as challenging, due to the relative large number of entities, and often conflicting nomenclature and classification. This session will provide a practical approach for the diagnosis of these tumors, including recently described entities, with emphasis on tumors that have prognostic significance and impact patient care. Special attention will be given to the use of immunohistochemical studies as a tool to establish the line of differentiation of cutaneous adnexal tumors from their differential diagnoses using key cutaneous metastases of tumors with visceral origin.