A spreading pigmented eruption over a surgical site

Key Points

• The study aims to explore the occurrence of unusual skin lesions over surgical sites in elderly patients following orthopedic procedures.
• Examined reticulated skin lesions over surgical sites in elderly patients
• Conducted histopathological examinations to identify histiocyte aggregates
• Reviewed treatment responses to various topical therapies
• Confirmed diagnosis of intravascular histiocytosis or reactive angioendotheliomatosis in cases examined
• Identified CD163+ or CD68+ histiocytes through histopathological findings
• Noted suboptimal responses to topical therapies, indicating the need for addressing underlying causes.

Abstract