Acute Pityriasis Lichenoides (APL) is a relatively rare, and self-limiting skin condition that belongs to a group of disorders known as the pityriasis lichenoides complex. It is characterized by the presence of pink to red, oval-shaped papules or patches on the skin. The lesions may be accompanied by the formation of thin, flaky scales similar to that of pityriasis rosea, giving rise to its name.
The exact cause of APL is unknown, but it is believed to be associated with an abnormal response of the immune system. It tends to affect individuals in their late childhood or early adulthood. The primary symptoms include the sudden onset of small, raised lesions which may progressively enlarge and form scaly crusts. These lesions are usually found on the trunk, extremities, and occasionally on the face.
The course of APL is typically characterized by a waxing and waning nature, with the lesions appearing and disappearing spontaneously over weeks to months. In most cases, the condition resolves on its own without treatment, although it may leave behind post-inflammatory hyperpigmentation.
Diagnosis of APL is mainly based on clinical presentation and ruling out other similar skin conditions. Histopathological examination may reveal characteristic findings of lichenoid inflammation. Treatment options for APL are limited, primarily focusing on relieving symptoms and accelerating the healing process. Topical corticosteroids, phototherapy, and oral antibiotics are some of the therapeutic approaches that may be considered.
In summary, Acute Pityriasis Lichenoides is a rare skin disorder characterized by the appearance of reddish, scaly patches on the skin. It typically resolves spontaneously over time, leaving behind hyperpigmentation in some cases. Recognition of this condition is crucial for
