Cutaneous pili migrans: A creeping eruption like condition easy to diagnose and cure

Curvilinear, erythematous plantar patch in a toddler

“…This is in contrast to the serpiginous and multidirectional tract of cutaneous larva migrans . With dermoscopy, a black, threadlike hair can be visualized on the advancing end, indicative of pili migrans . Lack of recent travel to areas with hookworms may also be helpful in establishing diagnosis.…”

“…Although the exact etiology of pili migrans is unknown, it is hypothesized that, secondary to biomechanical force, sharp hair fragments become embedded in the superficial layers of the skin (stepping on a recently cut hair), and subsequent migration is a result of the mechanical forces generated by ambulation . In children, cutaneous pili migrans occurs almost exclusively on the feet, predominantly the soles, whereas in adults, it may occur in any major frictional area, including the breasts, abdomen, and neck . The majority of cases have been reported in Asian populations, which has been hypothesized as secondary to the larger diameter and stronger tensile strength of Asian hair than in other ethnic groups …”

“…Because the erythematous and migratory nature of this condition, cutaneous pili migrans is often mistaken for cutaneous larva migrans. Pili migrans lacks the intense pruritus and secondary dermatitis characteristic of cutaneous larva migrans . In addition, although the path of the hair in pili migrans may appear tortuous, it typically occurs in a single direction.…”

“…3 In children, cutaneous pili migrans occurs almost exclusively on the feet, predominantly the soles, whereas in adults, it may occur in any major frictional area, including the breasts, abdomen, and neck. 7 The majority of cases have been reported in Asian populations, which has been hypothesized as secondary to the larger diameter and stronger tensile strength of Asian hair than in other ethnic groups. 8 Because the erythematous and migratory nature of this condition, cutaneous pili migrans is often mistaken for cutaneous larva migrans.…”

“…Pili migrans lacks the intense pruritus and secondary dermatitis characteristic of cutaneous larva migrans. 7 In addition, although the path of the hair in pili migrans may appear tortuous, it typically occurs in a single direction. This is in contrast to the serpiginous and multidirectional tract of cutaneous larva migrans.…”