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Updated: Feb 7, 2026

Analyzing the Functions of Mast Cells In Vivo Using 'Mast Cell Knock-in' Mice
Published on: May 27, 2015
Cutaneous plasmacytosis with mast cell infiltration.
Sarina Jain1, Rohit V Hede2, Uday S Khopkar1
1Department of Dermatology, Seth GS Medical College and KEM Hospital, Mumbai, Maharashtra, India.
This study reports a rare case of cutaneous plasmacytosis in an Indian male, characterized by skin plaques and a dense plasma cell infiltrate. A unique finding was the significant presence of mast cells within the dermal infiltrate.
Area of Science:
- Dermatology
- Pathology
Background:
- Cutaneous plasmacytosis is a rare skin disorder of unknown cause, predominantly seen in individuals of Japanese descent.
- It typically presents as multiple pigmented papules and plaques on the trunk, with a dense plasma cell infiltrate in the dermis.
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