Intramuscular ossified hemangioma

Abstract

A healthy 31-year-old man presented with a painful mass in his left thigh that had been present for over 1.5 years and had begun to grow in the last 3 months. He denied any previous history of trauma.Physical examination revealed a tender, firm mass in the lateral aspect of the left thigh measuring approximately 4x3 cm. No inflammatory signs, adenopathies, or skeletal de-Correspondence to:

A Compartmental Approach to the Radiographic Evaluation of Soft-Tissue Calcifications

“…21 Though soft-tissue hemangiomas are commonly diagnosed in radiologic practice, they are most frequently encountered in solid organs, with intramuscular hemangiomas accounting for only 1 to 4% of all such vascular tumors. 22 When they do occur, it is most likely to occur in children and adolescents with boys and girls equally affected. 22 Rarely, they may be found in association with an enchondroma, known as Maffucci's syndrome (Fig.…”

Intramuscular hemangioma with extensive ossification: Unique radiographic and histologic features

“…Although hemangioma is a common benign tumor, particularly for cutaneous type of childhood, intramuscular hemangiomas are rare and comprise just 0.8% [1] and 4.4% [2] respectively for all hemangiomas. The typical features may include calcification among others.…”

Intramuscular Hemangioma With Ossification

“…The cavernous hemangioma is the most common type of ossified hemangioma. [4][5][6][7][8]12 Ossification in an intramuscular hemangioma is seen as the so-called "Swiss cheese" appearance on radiographs described by Engelstad et al 6 This finding reflects the architecture of mature bone interspersed with large cavernous vascular channels. The Swiss cheese pattern of ossification is seen as poorly defined ossification with a coarse trabecular pattern on plain radiographs, whereas a phlebolith shows well-defined round or oval hyperdensity, characteristically with central lucency.…”

“…This finding was shown in this case and also in previously reported cases. [4][5][6] An MR image of a conventional hemangioma shows a mass of intermediate signal intensity with a fairly well-delineated margin on T1WI and high signal intensity on T2WI. Most cases have heterogeneous signal intensity and a serpentine pattern.…”

“…The main differential diagnosis of an intramuscular hemangioma with ossification should include myositis ossificans, an extraskeletal osteosarcoma, and a synovial sarcoma on radiologic examinations. 4,5 For myositis ossificans, according to its zonal phenomenon, calcification or ossification formation is shown in the periph-ery of the mass and changes depend on the age of the lesion. In our opinion, a centrally hypoechoic solid mass with peripheral hyperechoic fat that shows hypervascularity and scattered hyperechoic ossification is suggestive of a hemangioma with ossification rather than myositis ossificans.…”