Abstract
Lipomas are common benign soft tissue neoplasms of mature adipose tissue. The peak incidence is usually in the fifth or sixth decade of life, while occurrence in children is very uncommo. Multiple presentations may occur in about 5% patients. The tumors may or encapsulated may not be. In a review of more than 1000 benign tumors of adipose tissue, over 80% were ordinary lipomas; nearly all the others were angiolipomas, intramuscular lipomas, or lipoblastomas. Other types accounted for less than 2% of all benign lipomatous neoplasms. The occurrence in the head and neck is relatively rare. Only 25% lipomas arise from the head and neck. Lipomas of the anterior neck are extremely rare. They may extend posteriomedially between the sternocleidomastoid and digastric muscles. Most commonly, they arise at the posterior subcutaneous neck. The deep lipoma is usually larger and deforms the surrounding tissue as compared to superficial lipomas which are generally more circumscribed.
Highlights
The subfascial or deep lipomas can be classified as parosteal, interosseous or visceral; and as intermuscular or intramuscular
Clinical examination revealed a soft swellling in anterolateral aspect of the neck extending behind the clavicle
Goldberg. described their internal echogenicity and poorly defined contours [6]. The reason for these conflicting reports may be due to the fact that most investigators group lipomas located in various parts of the body under one category such as those found in the extremities, thorax abdominal walls, kidneys, adrenals and pelvis [7]
Summary
The subfascial or deep lipomas can be classified as parosteal, interosseous or visceral; and as intermuscular or intramuscular. We report a rare case of infiltrating lipoma of the neck in a young male. IJCRI – International Journal of Case Reports and Images, Vol 4 No 5, May 201 3. Head and neck lipomas are compressible, well defined, elliptical masses (88%) parallel to the skin surface (88%), are hyperechoic relative to adjacent muscle (76%), contain linear echogenic lines at right angles to the ultrasound beam (100%), and display no distal enhancement or attenuation (100%) [8].
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