Items tagged “skull”

Cephalohematomas are traumatic subperiosteal hematomas of the skull that are usually caused by birth injury. They are bound between the periosteum and cranium, and therefore cannot cross sutures. Being bound by a suture line distinguishes them from subgaleal hematoma, which can cross sutures. E...

Platybasia is characterized by abnormal flattening of the skull base as defined as a base of skull angle over 143º. Clinical presentation Platybasia alone does not usually cause symptoms unless it is associated with basilar invagination 6. Pathology Etiology congenital achondroplasia Dow...

Pott puffy tumor refers to a non-neoplastic complication of acute sinusitis. It is characterized by a primarily subgaleal collection, subperiosteal abscess, and osteomyelitis. It is usually related to the frontal sinus but is sometimes secondary to mastoid pathology. Rarer etiologies include tr...

Wormian bones (also known as intrasutural bones) is the name given to the additional small bones sometimes found between the cranial sutures of the bones of the skull vault, most commonly in relation to the lambdoid suture. Some reserve the term Wormian bones to just the intrasutural bones proxi...

Osteoporosis circumscripta cranii, also known as osteolysis circumscripta, refers to discrete radiolucent regions of the skull on plain radiographs. They are often seen in context of the lytic (incipient-active) phase of Paget disease of the skull, but may be observed in other circumstances as w...