Solitary osteolytic skull lesion

Common: Burr hole; Cholesteatoma; Craniotomy flap; Cranium bifidum; Depressed skull fracture; Encephalocele; Enlarged emissary channel; Epidermoid; Fibrous dysplasia; Fontanelle; Hemangioma; Inioindineal canal; Langerhans cell histiocytosis; Meningocele; Metastasis to skull; Multiple myeloma; Osteomyelitis; Pacchionian granulation; Paget disease of bone; Parietal foramen; Parietal thinning; Plasmacytoma; Skull fracture; Surgical defect; Venous lake
Uncommon: Aneurysmal bone cyst; Aplasia cutis congenita; Arachnoid cyst; Arteriovenous malformation; Brain neoplasm; Brown tumor of hyperparathyroidism; Button sequestrum; Calvarial doughnut; Chondroid lesion; Chondrosarcoma; Chordoma of clivus; Dermal sinus; Dermoid; Ectopic intradiploic glial tissue; Ewing sarcoma; Fungal disease; Gaucher disease; Giant cell tumor; Glomus jugulare tumor; Hydatid disease; Leptomeningeal cyst; Lymphangioma; Lymphoma; Malignant fibrous histiocytoma; Melanotic neuroectodermal tumor of infancy; Meningioma; Nasopharyngeal carcinoma; Neurofibroma; Neurofibromatosis; Niemann-Pick disease; Osteolytic osteosarcoma; Osteonecrosis of skull; Paranasal sinus mucocele; Paranasal sinus neoplasm; Rodent ulcer of scalp; Sarcoidosis; Scalp carcinoma; Sebaceous cyst; Subdural hematoma; Syphilis; Tuberculosis