Common

Uncommon

Rarities

1. Optic neuritis
2. Papilledema
3. Orbital apex #
4. Perineuritis 2ry to pseudotumour
5. Optic Gliom

1. Optic nerve sheath meningioma
2. Sarcoidosis
3. Metastases

1. Haemagioblastoma
2. Lymphoma

1. Cavernous haemangioma
2. Inflammatory pseudotumour
3. Varix

1. Neurfibroma
2. Lymphangioma
3. Dilated ophthalmic artery due to AVM
4. Metastasis
5. Lymphoma (usually extraconal)
6. Capillary haemagioman (usually extraconal)

1. Schwannoma
2. Haemagiopericytoma
3. Yolk sac tumor
4. Mesenchymal chondrosarcoma
5. Granular cell myoblastoma

1. Dermoid
2. Lymphoma
3. Capillary haemangioma
4. Rhabdomyosarcoma

1. Neurofibromas
2. Metastases

1. Fibrous histiocytoma

1. Xanthelasma & others
2. Basalioma

1. Capiallary haemangioma
2. Dermoid
3. Lymphoma
4. Fibroma
5. Neruofibroma

1. Metastases
2. Melanosarcoma

1. Mucocele
2. Orbtial #
3. Subperiosteal abscess
4. Tumour of paranasl sinsuses
5. Osteoma
6. Metastases
7. Dermoid, epidermoid
8. Meningioma
9. Rhabdomyosarcoma

1. Fibrous dysplasia
2. Craniofacial dysplasia
3. Wegener' granulomatosis
4. Plasmocytoma
5. Cholesterol cyst
6. Paget's disease

1. Sphenoid wing malformation
2. Histiocytosis
3. Encephalocele
4. Osseous tumours
   1. giant cell tumour
   2. brown tumour
   3. aneurysmal bone cyst
5. Osteopetrosis
6. Osteosarcoma of children with retinoblastoma

1. Dacryoadenitis
2. Inflammatory psseudotumour
3. Abscess

1. Lymphoma
2. Dermoid
3. Sarcoidosis
4. Pleomorphic adenoma
5. Adenoid cystic carcinoma
6. Sjogren's syndrome

1. Wegner's granulomatosis
2. Mikulicz' syndrome
3. Metastases

1. Papilloma
2. Transitional cell carcinoma
3. Epidermoid carcinoma
4. Melanoma

1. Pituitary adenoma
2. Meniongioma
3. Empty sella
4. Arachnoid cyst
5. Craiopharyngioma
6. Optic chiasm glioma

1. Metastases
2. Tolosa-hunt syndrome

1. Thryoid orbitopathy
2. Myositis
3. Inflammatory pseudotumor

1. Metastases
2. Wegner's granulomatosis
3. Acromegaly
4. Granular cell myoblastoma
5. Lithium therapy