Types Intramuscular<unk>  at buttocks as a result of a sports injury. L to R: Epidural<unk> , Subdural<unk> , and Intracranial<unk> . * Subdermal<unk>  (under the skin) * Intramuscular<unk>  (inside muscle tissue) * Skull/brain: * Subgaleal<unk>  – between the galea aponeurosis and periosteum * Cephalohematoma – between the periosteum and skull. Commonly caused by vacuum delivery and vertex delivery. * Epidural<unk>  – between the skull and dura mater * Subdural<unk>  – between the dura mater and arachnoid mater * Subarachnoid<unk>  – between the arachnoid mater and pia mater (the subarachnoid space) * Othematoma – between the skin and the layers of cartilage of the ear * Breast<unk>  (breast) * Perichondral<unk>  (ear) * Perianal<unk>  (anus) * Subungual<unk>  (nail) * Rectus sheath<unk>  Degrees * Petechiae – small pinpoint<unk> s less than 3 mm in diameter * Purpura (purple) – a bruise about 3 – 5 mm in diameter, generally round in shape * Ecchymosis – subcutaneous extravasation of blood in a thin layer under the skin, i.e. bruising or "black and blue," over 1 cm in diameter
Hematoma
Deep vein thrombosis
Seroma
Angioma
Coma
Breast hematoma
Stoma 
Noma 