scalp and skull neoplasms Flashcards
necrobiotic grangulomas
show necrosis of dermal colligen, usually occipital and frontal region
fibrodisplasia ossificans progressa
shows up in infancy- heterotopic calcification of tissues- biopsy conraindicated
cranial fascitis of childhood
usually temporal region large mass around 2 years of age- can have enhancement on edges can predominity grow intracranially osteolytic
desmoplastic neurofibroma
benign tumor arising from bone with abundant colligen formation - osteolytic lesion
dermoid cysts, when to get imaging
occipital and midline ofeten have some intracranial involvement
classification of langerhand cell histocytosis
univ or multifocal- sing system most frequent is skull
how do skull langerhands present
panfulmass and history of recent growth or trauma- clivus with adbucens palsy
radiographic findings of lagerhands
punched out lesions wiout scleric margins- enhancement- DI for pituitary invasion- radionucletide scan needs to see other bone involvment
what are ABCS
aneurysmal bone cyst are expansion of the diploic space that distort and attenuate overlying cortical bone
what typical presentation
painful expanding mass of skull- more common in spine- often secondar to otehr bone elseions liek gians cell tumor and osteoblaseoma
osteoma
seen mostly young adults- mature cortical bone- expansile lesions w/o boney destruction
osteoblastoma
presentation enlarge and painful, full thickness taken- simular to ostoid ostioma
fiberous displasia
normal bone replaced by fibro-sseous tissue - endocrineopathy mcune albright with cafe au late spoes
presentation of fiberous displasia
painless progressive deformity of skull - ground glass apearance on ct
neuroblasoma
prestnt with swelling of skulland harion end appeaance
