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Tekin B, Johnson EF, Wieland CN, Gibson LE, Camilleri MJ, Kalaaji AN, Comfere NI, Peters MS, Lehman JS. Histopathology of autoimmune bullous dermatoses: What's new? Hum Pathol 2022; 128:69-89. [PMID: 35764145 DOI: 10.1016/j.humpath.2022.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/19/2022] [Accepted: 06/21/2022] [Indexed: 11/25/2022]
Abstract
Autoimmune bullous dermatoses are characterized by the presence of tissue-bound and often circulating pathogenic autoantibodies targeting structural components of the skin and/or mucous membranes. The diagnostic workup for this heterogeneous group of disorders consists of a multi-step process, of which the light microscopic examination is a crucial component. This review is organized following a classification scheme that is based on two main histopathologic features, namely level of intraepithelial split and composition of the inflammatory infiltrate. Overall, we aim to place emphasis on the histopathologic clues that can assist pathologists in differential diagnosis and review the updates in the literature.
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Affiliation(s)
- Burak Tekin
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Emma F Johnson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Carilyn N Wieland
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Lawrence E Gibson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Michael J Camilleri
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Amer N Kalaaji
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Nneka I Comfere
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Margot S Peters
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Julia S Lehman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA; Department of Dermatology, Mayo Clinic, Rochester, MN, USA.
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