Which condition is characterized by flat, spreading, scaly ring-shaped spots?

The condition characterized by flat, spreading, scaly ring-shaped spots is ringworm. This fungal infection, known scientifically as tinea, creates distinctive ring-like, red patches on the skin that can appear scaly and may be itchy. The circular shape and spreading nature of these lesions are hallmark signs of ringworm, which typically affects areas like the scalp, body, and nails.

Scabies, on the other hand, is caused by a mite that burrows into the skin, leading to intense itching and rash, but it does not form ring-shaped spots. Rubeola measles involves a rash that typically starts flat and red but does not exhibit the scaly or ring-like patterns seen in ringworm. Typhus, while it can lead to skin rashes, does not manifest as spreading, ring-shaped patches; instead, it presents with different symptoms and rash patterns. Understanding these distinctions is crucial for accurate identification and treatment.