Final answer:
Two common types of skin infections caused by Pseudomonas spp. are folliculitis, presenting as inflamed hair follicles, and ecthyma gangrenosum, which manifests as rapidly progressive skin ulcers.
Step-by-step explanation:
The types of panniculitis, an inflammation of the fat layer under the skin, can vary based on the cause and area affected. However, you've requested information specifically on skin infections caused by Pseudomonas spp., which can lead to different conditions. Two common skin infections caused by Pseudomonas are folliculitis and ecthyma gangrenosum. Folliculitis presents as red, inflamed hair follicles that may form pus-filled bumps. It can progress into more severe infections such as furuncles if the infection worsens. Ecthyma gangrenosum is a more severe form, typically occurring in immunocompromised individuals, characterized by rapidly progressive skin ulcers.