Pseudomonas folliculitis in Child
Clinically, Pseudomonas folliculitis is characterized by tender or pruritic folliculocentric papules preferentially localized to the trunk, buttocks, and extremities. Inflammation of Montgomery's follicles of the breast has also been described in one outbreak in Alaska. Symptoms typically develop within 1-4 days after exposure to the contaminated water source. Infection can be associated with mild fever, malaise, lymphadenopathy, and leukocytosis. The cutaneous eruption usually fades within 7-14 days without therapy.
Water sources contaminated with Pseudomonas are also associated with outbreaks of painful plantar nodules termed the Pseudomonas hot-foot syndrome. These patients may or may not have a concomitant folliculitis.
There is no geographic distribution of Pseudomonas folliculitis. However, since hot tubs and natural hot springs are common activities of travelers and since pyodermas (purulent skin diseases) are among the most frequently reported complaints in returning travelers, a high degree of clinical suspicion is warranted.
L73.8 – Other specified follicular disorders
402921005 – Pseudomonas aeruginosa folliculitis
Differential Diagnosis & Pitfalls
- Bacterial folliculitis
- Pityrosporum folliculitis
- Allergic contact dermatitis
- Acne (adolescents)
- Keratosis pilaris
- Folliculitis due to herpes simplex virus (HSV), varicella zoster virus (VZV), or molluscum contagiosum
- Steroid acne
- Insect bites
- Miliaria rubra
- Eosinophilic folliculitis
- Seabather's eruption