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Schukow C, McCalmont TH, Surprenant D, Yang HH. Intraepidermal Poroma (Hidroacanthoma Simplex) Versus Clonal Seborrheic Keratosis: Will GATA3 Immunohistochemistry Help in the Differential Diagnosis? Am J Dermatopathol 2023; 45:728-730. [PMID: 37506277 DOI: 10.1097/dad.0000000000002503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Affiliation(s)
- Casey Schukow
- Department of Pathology, Corewell Health, Royal Oak, MI
| | - Timothy H McCalmont
- Golden State Dermatology Associates, Walnut Creek, CA
- Departments of Pathology and Dermatology, University of California, San Francisco, CA
| | | | - Hongyu Henry Yang
- Tristate Pathology Associates, St. Vincent Evansville Medical Center, Evansville, IN
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Almeida Issa MC, Airão destefani C, Guiotti de Alencar A, Carrijo Rochael M, Almeida Issa MC. Clinical, dermoscopic, and histopathologic findings of hidroacanthoma simplex: Literature review and case report. Dermatol Reports 2022. [DOI: 10.4081/dr.2022.9571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Hidroacanthoma simplex (HS) is a rare benign intraepidermal tumor that originates in the acrosyringial portion of the eccrine duct. Clinically, they are well-defined lesions, flat or verrucous brownish plaque, and can be misdiagnosed with other types of benign or malignant tumors. Dermoscopy reveals small black globules and fine scales. The histopathology of HS is characterized by typical intraepidermal nests, well-circumscribed, composed of uniform basaloid and poroid cells within the acanthotic epidermis with cystic or ductal structures in the nests. We report a case of HS that changes its clinical appearance, dermoscopy, and histopathologic findings over time. Differential diagnoses included seborrheic keratosis, Bowen disease, melanoma, and malignant HS.
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