Table 1.
Supraclavicular fossa boundaries.
| Margin | CT scan margins | Conventional |
|---|---|---|
| Superior | Up to but excluding the thyroid gland and cartilage | To allow at least a 1 cm corridor of skin |
| Anterior | Deep surface of sternocleidomastoid muscle and deep cervical fascia | Skin |
| Medial | Lateral edge of trachea | Lateral bony edge of the vertebrae |
| Posteromedial | Carotid artery and internal jugular vein | |
| Posterolateral | Anterior scalene muscle | Lateral 2/3 of the clavicle |
| Inferior | Subclavian artery | Inferior aspect of sternoclavicular joint |