An Atypical Presentation of an Osteoid Osteoma of the Lesser Trochanter Resected via the Ludloff Approach.

Osteoid osteoma is a benign bone tumor that frequently affects young adults. The clinical presentation is variable, and the course can lead to spontaneous regression or persistence, necessitating medical or surgical treatment. We report the case of a young patient with an exceptional localization of an osteoid osteoma at the lesser trochanter, exhibiting atypical clinical and radiological features. The tumor was resected via the Ludloff approach. Here, we discuss our diagnostic and therapeutic approach in light of the literature.