[3] Initially affecting the head and neck, this condition is characterized by several small eruptions of yellow to reddish-brown papules that heal on their own.

[4] Histological investigations have demonstrated that this disorder is associated with dermal proliferation of histiocytes, characterized by intracytoplasmic comma-shaped bodies, covered vesicles, and desmosome-like structure.

The colors of the lesions range from yellow to red-brown, and they primarily affect the face and neck.

[4] A well-circumscribed histiocytic infiltrate is found in the superficial and middle reticular dermis of the biopsy specimen of the BCH early lesion, occasionally accompanied by lymphocytes and eosinophils.

[5] Treatment is not necessary because lesions usually go away on their own by the time a child is 2 to 8 years old, though they frequently leave behind permanent post-inflammatory hyperpigmentation.