Reactive infectious mucocutaneous eruption due to COVID-19 with erythema-multiforme-like lesions and myeloid cells.
J Cutan Pathol
; 50(4): 321-325, 2023 Apr.
Article
en En
| MEDLINE
| ID: mdl-36194075
ABSTRACT
Reactive infectious mucocutaneous eruption (RIME) is a recently described entity in which there is prominent mucositis, most commonly involving the oral and urogenital mucosa, secondary to a variety of pathogens. There is typically minimal cutaneous involvement in RIME. This contrasts with erythema multiforme (EM) in which characteristic targetoid lesions predominate, usually in isolation (EM minor), but in a subset of cases, with severe mucositis (EM major). While the histopathologic features of RIME have not been as well defined, those of EM are characterized by epidermal apoptosis and interface dermatitis with lymphocytes making up the predominant cell type. We report a unique case of RIME in a 16-year-old male with COVID-19 characterized by significant mucositis involving the oral and genital mucosa, as well as numerous targetoid lesions on the trunk and extremities. Histopathologically, there was an inflammatory infiltrate obscuring and disrupting the epidermal interface, associated with epidermal necrosis, and blister formation. The infiltrate was composed of cells with irregular, non-segmented and elongate nuclei, with myeloid and histiocytoid cytomorphology. The cells were positive for myeloperoxidase, CD68, and CD163 (subset) suggesting myeloid lineage. RIME is a rarely reported COVID-19-related eruption, and targetoid lesions and myeloid interface reactions have not been described with RIME.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Eritema Multiforme
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Síndrome de Stevens-Johnson
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Mucositis
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Exantema
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COVID-19
Límite:
Adolescent
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Humans
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Male
Idioma:
En
Revista:
J Cutan Pathol
Año:
2023
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
EEUU
/
ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA