J Korean Med Sci.  2017 Jun;32(6):885-886. 10.3346/jkms.2017.32.6.885.

Urticaria Pigmentosa Mimicking Multiple Lentigine-like Brownish Macules in a 22-Month-Old Boy

  • 1Department of Dermatology, Chung-Ang University School of Medicine, Seoul, Korea. momo920@hanmail.net


No abstract available.

MeSH Terms

Urticaria Pigmentosa*


  • Fig. 1 Gross and microscopic photographs of the skin. (A) Gross view of the back, 14 months ago and (B) at presentation (22-months-old) with multiple lentigine-like macules on the trunk and thighs. Histopathologic examination showed an infiltrate composed chiefly of mast cells, which are characterized by the presence of metachromatic granules in the cytoplasm. The granules were not visible by H & E staining (C), but were confirmed after staining with (D) toluidine blue, and (E) c-kit (CD-117). H & E = hematoxylin and eosin.


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