Radiolucent skull lesion

Epidural hematoma is when bleeding occurs between the tough outer membrane covering the brain (dura mater) and the skull. Often there is loss of consciousness following a head injury, a brief regaining of consciousness, and then loss of consciousness again. [Source: Wikipedia ]

May Be Caused by
Aneurysmal bone cyst
Angiomatosis
Aplasia cutis congenita
Arteriovenous malformation of scalp
Arteriovenous malformation of skull
Brodie abscess
Brown tumor of hyperparathyroidism
Burr hole
Button sequestrum
Caffey disease
Calvarial doughnut
Cephalohematoma
Cephalohydrocele
Cholesteatoma
Chondroid lesion
Chondrosarcoma
Chordoma of clivus
Congenital arachnoid cyst
Congenital fibromatosis
Craniotomy
Cranium bifidum
Dermal sinus
Dermoid
Diploic channel
Ectopic intradiploic glial tissue
Encephalocele
Epidermoid
Ewing sarcoma
Fibrosarcoma
Fibrous dysplasia
Fontanelle
Fracture
Frontal fenestra
Frontonasal dysplasia
Gaucher disease
Giant cell tumor
Glomus jugulare tumor
Granulocytic sarcoma
Hemangioma
Hemangioma of scalp
Hemangioma of skull
Hemophilic pseudotumor
Hydatid disease
Idiopathic
Inioindineal canal
Intracranial tumor with erosion
Intradiploic hematoma
Intradiploic neural heterotopia
Langerhans cell histiocytosis
Leptomeningeal cyst
Lymphangioma
Lymphoma
Malignant fibrous histiocytoma
Melanotic neuroectodermal tumor of infancy
Meningioma
Meningoencephalocele
Metastasis to skull
Multiple myeloma
Nasopharyngeal neoplasm
Neurofibroma of bone or scalp
Neurofibromatosis
Niemann-Pick disease
Osteomyelitis
Osteonecrosis of skull
Osteosarcoma
Pacchionian granulation
Paget disease of bone
Paranasal sinus mucocele
Paranasal sinus neoplasm
Parietal foramina
Parietal thinning
Plasmacytoma
Sarcoidosis
Scalp tumor
Senile parietal thinning
Skin tumor
Subdural hematoma
Surgical defect
Syphilis
Tuberculosis
Venous lake
Weber-Christian disease
Wide sutures
Yaws
Aneurysmal bone cyst
Angiomatosis
Aplasia cutis congenita
Arteriovenous malformation of scalp
Arteriovenous malformation of skull
Brodie abscess
Brown tumor of hyperparathyroidism
Burr hole
Button sequestrum
Caffey disease
Calvarial doughnut
Cephalohematoma
Cephalohydrocele
Cholesteatoma
Chondroid lesion
Chondrosarcoma
Chordoma of clivus
Congenital arachnoid cyst
Congenital fibromatosis
Craniotomy
Cranium bifidum
Dermal sinus
Dermoid
Diploic channel
Ectopic intradiploic glial tissue
Encephalocele
Epidermoid
Ewing sarcoma
Fibrosarcoma
Fibrous dysplasia
Fontanelle
Fracture
Frontal fenestra
Frontonasal dysplasia
Gaucher disease
Giant cell tumor
Glomus jugulare tumor
Granulocytic sarcoma
Hemangioma
Hemangioma of scalp
Hemangioma of skull
Hemophilic pseudotumor
Hydatid disease
Idiopathic
Inioindineal canal
Intracranial tumor with erosion
Intradiploic hematoma
Intradiploic neural heterotopia
Langerhans cell histiocytosis
Leptomeningeal cyst
Lymphangioma
Lymphoma
Malignant fibrous histiocytoma
Melanotic neuroectodermal tumor of infancy
Meningioma
Meningoencephalocele
Metastasis to skull
Multiple myeloma
Nasopharyngeal neoplasm
Neurofibroma of bone or scalp
Neurofibromatosis
Niemann-Pick disease
Osteomyelitis
Osteonecrosis of skull
Osteosarcoma
Pacchionian granulation
Paget disease of bone
Paranasal sinus mucocele
Paranasal sinus neoplasm
Parietal foramina
Parietal thinning
Plasmacytoma
Sarcoidosis
Scalp tumor
Senile parietal thinning
Skin tumor
Subdural hematoma
Surgical defect
Syphilis
Tuberculosis
Venous lake
Weber-Christian disease
Wide sutures
Yaws