Well-circumscribed deep-seated lipomas of the upper extremity. A report of 13 cases

Abstract

Level 4.

Posterior interosseous nerve palsy caused by a parosteal lipoma seated over the proximal radius; a case report and review of the literature

“…The observation of a radiolucent mass, periosteal reaction [29,42] and calcification in elbow radiograph; soft tissue masses of varying echogenicity under ultrasound [28]; slower rate of transmission than that of the healthy side under EMG [44]; delayed latency and low amplitude; intermediate signal increase under T1-weighted MRI; and high signal increase in T2-weighted imaging all support the diagnosis of PIN palsy secondary to lipoma. However, definitive diagnosis should be established through the identified presence of broad-based multi-lobular masses covered with thin fibrous tissue in contact with a bone and parosteal changes in the bone bordering the lesion in histopathological examination [42].…”

“…In direct radiography, small-sized lipomas may not be detected, while big lipomas may present with a radiolucent appearance [42,29]. In a study of 5 patients published by Fitzgerald et al, 4 of 5 cases had been diagnosed by this radiolucent appearance under direct radiography; however, one of them had been diagnosed with CT [29]. Furthermore, in the study published by Lidor et al in 1992, radiolucent masses had appeared under direct radiography in all five patients [15].…”

“…Direct radiography is the first imaging modality that usually performed for screening musculoskeletal tumors. In direct radiography, small-sized lipomas may not be detected, while big lipomas may present with a radiolucent appearance [42,29]. In a study of 5 patients published by Fitzgerald et al, 4 of 5 cases had been diagnosed by this radiolucent appearance under direct radiography; however, one of them had been diagnosed with CT [29].…”

Intercompartmental Giant Lipoma of the Arm: A Case Report

“…Intermuscular lipomas are occur deep within muscle compartments and comprise 0.3% of all lipomas. As with other deep lipomas, they are often asymptomatic, being identified only when they have reached a large size or are compressing local neurovascular structures or both. Deep lipomas are most commonly found in the lower limbs, and in decreasing order of frequency affect the trunk, shoulders and arms; the intermuscular subtype has a particular predilection for the abdominal wall.…”

Sıradışı Yerleşimli Dev Lipoma: Olgu Sunumu

“…Giant lipomas may become symptomatic, if they exert mass effect onto the neighbour tissues. Treatment in this case is surgical excision (3,4). Surgical technique should be chosen according to lipoma's location.…”