The page below is a sample from the LabCE course Free-Living Amoeba as Agents of Infection. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Free-Living Amoeba as Agents of Infection (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 94 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Individual course$20 Add to cart

Illness and Symptoms, continued: Acanthamoeba Species

Cutaneous acanthamoebiasis

Like GAE, cutaneous infections caused by Acanthamoeba species are rare and are mostly seen in immunocompromised persons. The diagnosis must exclude viral, fungal, mycobacterial, and bacterial infections. Cutaneous lesions, shown in the images, usually begin as papules or hard nodules. Non-healing necrotic skin ulcers may also occur. The lesions, which may or may not be painful, are mostly found on the lower limbs. In addition to Acanthamoeba trophozoites, pathological examination shows an intense inflammatory reaction with histiocyte predominance. Patients showing skin involvement alone can expect a 76% mortality rate.