<unk>  (MDHSR) has been described by Cozzutto and Lazzaroni-Fossati in 1980, by Posalaki et al. in 1981 and by Cozzutto et al. in 1982. Three additional cases were seen by Finegold.
Metanephric dysplastic hematoma of the sacral region
Massive giant-cell tumor of pelviacetabulum
Spinal epidural hematoma
Perinatal gangrene of the buttock
Spinal cord injury without radiographic abnormality
Unilateral nevoid telangiectasia
Palisaded encapsulated neuroma
Rectus sheath hematoma