Infraclavicular median nerve compression caused by a lipoma. 1988

N Weinzweig, and E Z Browne
Department of Plastic and Reconstructive Surgery, Cleveland Clinic, OH 44106.

The most common site of median nerve compression is in the carpal tunnel, the most common of all entrapment neuropathies. Less frequent entrapment neuropathies of the median nerve include the anterior interosseous and pronator syndromes in the proximal forearm. Even less commonly seen is entrapment at the infraclavicular segment of the brachial plexus. Median nerve compression at the level of the axilla has been reported as being caused by anomalous axillary arch muscles, anomalous vascular perforations of the nerve or its roots, the pectoralis minor muscle, and a thickening of the deltopectoral fascia. To the authors' knowledge, this is the first report of compression at that level by a benign tumor.

UI MeSH Term Description Entries
D008067 Lipoma A benign tumor composed of fat cells (ADIPOCYTES). It can be surrounded by a thin layer of connective tissue (encapsulated), or diffuse without the capsule. Fatty Tumor,Hibernoma,Lipoma, Pleomorphic,Atypical Lipoma,Lipomata,Lipomatosis, Multiple,Atypical Lipomas,Fatty Tumors,Hibernomas,Lipoma, Atypical,Lipomas,Lipomas, Atypical,Lipomas, Pleomorphic,Lipomatas,Lipomatoses, Multiple,Multiple Lipomatoses,Multiple Lipomatosis,Pleomorphic Lipoma,Pleomorphic Lipomas,Tumor, Fatty,Tumors, Fatty
D008297 Male Males
D008475 Median Nerve A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand. Median Nerves,Nerve, Median,Nerves, Median
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009408 Nerve Compression Syndromes Mechanical compression of nerves or nerve roots from internal or external causes. These may result in a conduction block to nerve impulses (due to MYELIN SHEATH dysfunction) or axonal loss. The nerve and nerve sheath injuries may be caused by ISCHEMIA; INFLAMMATION; or a direct mechanical effect. Entrapment Neuropathies,Nerve Entrapments,External Nerve Compression Syndromes,Internal Nerve Compression Syndromes,Nerve Compression Syndromes, External,Nerve Compression Syndromes, Internal,Compression Syndrome, Nerve,Compression Syndromes, Nerve,Entrapment, Nerve,Entrapments, Nerve,Nerve Compression Syndrome,Nerve Entrapment,Neuropathies, Entrapment,Neuropathy, Entrapment,Syndrome, Nerve Compression,Syndromes, Nerve Compression
D002968 Clavicle A bone on the ventral side of the shoulder girdle, which in humans is commonly called the collar bone. Collar Bone,Bone, Collar,Bones, Collar,Clavicles,Collar Bones
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012983 Soft Tissue Neoplasms Neoplasms of whatever cell type or origin, occurring in the extraskeletal connective tissue framework of the body including the organs of locomotion and their various component structures, such as nerves, blood vessels, lymphatics, etc. Neoplasm, Soft Tissue,Neoplasms, Soft Tissue,Soft Tissue Neoplasm

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