Question

What signs and symptoms are associated with Rusty Carr's condition, including details such as intense itching that worsens at night, and a pimple-like rash observed predominantly in areas like wrists, in between fingers, and bends of the elbow?

Answer 1

The condition with intense nocturnal itching and a pimple-like rash at specific sites like wrists and interdigital spaces is indicative of scabies, distinguished from psoriasis by the rash pattern and timing of itching.

Step-by-step explanation:

The signs and symptoms described, including intense itching that worsens at night and a pimple-like rash observed predominantly in areas like wrists, in between fingers, and bends of the elbow, suggest a condition known as scabies. Scabies is caused by an infestation of the skin by the Sarcoptes scabiei mite. The main symptom of scabies is intense itching that typically worsens at night. This itching can lead to a pimple-like rash which is often seen in the interdigital spaces, wrists, elbows, and other folded areas of the skin.

In contrast, psoriasis is a chronic autoimmune skin disease characterized by itchy or sore patches of thick, red skin with silvery scales, predominantly affecting areas such as elbows, knees, and scalp. However, psoriasis does not cause the same nocturnal itching or the rash pattern that scabies does. Therefore, it is important to distinguish between these two conditions based on the specific presentation and clinical history.