Unilateral chromhidrosis versus unilateral pseudochromhidrosis: an interesting phenomenon

Abstract

Actinic LP is a photodistributed variant of LP, which most commonly occurs in individuals with dark complexion. The lesions tend to involve sun-exposed areas, most often on the forehead and face, followed by the dorsum of the hands and the neck. In our patient, the finding of milia studded around the patch was an interesting and rare finding.Milia are small benign epidermoid cysts. They are classified into primary milia, which arise spontaneously, and secondary milia, which develop because of a traumatic or inflammatory cutaneous event. 2,3 Secondary milia are seen as a sequelae of a subepidermal blistering process, such as bullous pemphigoid, and in genodermatoses such as epidermolysis bullosa. Milia have also been reported to develop after cosmetic procedures such as dermabrasion.

Unilateral Axillary Pseudochromhidrosis-like Lesion Caused by Pediculosis Pubis

“…[ 1 ] Pseudochromhidrosis is characterized by altered skin pigmentation due to the presence of surface compounds, molecules, or chromogenic bacteria in the sweat. [ 4 ] Pseudochromhidrosis occurs when eccrine sweat reacts with dyed clothing, paints, or chromogenic bacteria. [ 5 ] P. pubis infections alter the skin color by deep dermal hemosiderin deposition from the bites and may stain the clothes with minute droplets of blood and crusts, prompting medical attention.…”