Figure 6From: Nodular osteochondrogenic activity in soft tissue surrounding osteoma in neurogenic para osteo-arthropathy: morphological and immunohistochemical study Frozen section of soft tissue of a 24 months hip NPOA: Type I collagen immunolabelling counter stained by h&e: Type I collagen was the main constituant of the matrix in the primary osteons (OS) and non organized woven bone (W). Inset: lamellar bone deposition observed by polarized lightBack to article page