Anticoagulant-induced shoulder hematoma producing brachial plexus neuropathy--case reports.

Hemorrhagic complications from anticoagulants are common and may manifest in any part of the human body. Skin discoloration, pain, tenderness, and soft-tissue swelling may be the main clinical features. The authors present 3 extraordinary cases of brachial plexus neuropathy associated with anticoagulant-induced hemorrhage. The signs, symptoms, important differentials, and clinical treatment are described with regard to the pathologic anatomy.