Lipomas are benign tumors composed of mature fat, usually encapsulated. A literature review showed that the vast majority of lipomas are small, weighing only a few grams, and grow slowly. According to Hawary et al. (Ann Saudi Med 19(2):174-176, 1999) a giant breast lipoma is characterized by a lesion of at least 5 cm in one dimension and weighs more than 500 g. We present a rare case of a giant breast lipoma with slow growth over 22 years that compromised the entire hemithorax through the right iliac fossa. A 49-year-old woman was referred to our plastic surgery unit because of complaints of severe breast asymmetry due to an enormous mass in the right breast. Twenty-two years earlier she had noticed a soft, mobile, nonpulsatile mass in the inferior quadrant of her right breast. She did not look for medical treatment for all those years for fear of it being cancer. Ultrasound suggested a lipomatous lesion. Open mass biopsy revealed lipoma. The patient underwent a whole mass resection, reconstruction with a parenchymal cross flap, and left breast symmetrization with an inverted T technique. An excellent result with a high degree of patient satisfaction was achieved with the procedure. Parenchymal cross flaps seem to be an option in these situations.
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机译：脂肪瘤是由成熟脂肪组成的良性肿瘤，通常被包裹。文献综述表明，绝大多数脂瘤都很小，仅重几克，并且生长缓慢。根据Hawary等。 （Ann Saudi Med 19（2）：174-176，1999）巨大的乳腺脂肪瘤的特征是病变的一维至少5 cm，重超过500 g。我们提出了一种罕见的巨大乳脂瘤病例，该瘤在22年中生长缓慢，通过右窝损害了整个半胸。一名49岁的妇女因右乳房巨大肿块而导致乳房严重不对称而被转介到我们的整形外科。 22年前，她注意到右乳房下象限有一块柔软，活动，无搏动的肿块。这些年来，她一直没有寻求药物治疗，因为担心它会致癌。超声提示为脂瘤性病变。开放性大量活检显示脂肪瘤。该患者进行了一次整体肿块切除，使用实质性交叉皮瓣重建，并使用倒置T技术使左乳对称。该手术获得了很好的结果，患者满意度很高。在这些情况下，实质性交叉皮瓣似乎是一种选择。
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