家族性巨颌症(Cherubism)又称家族性颌骨纤维异常增殖症、家族性颌骨多囊性病,是一种良性、自限性疾病。1933 年由William A. Jones首先报道。别名:小天使,胖娃娃脸。
临床表现:
通常为双侧颌骨的无痛性肿大,病变主要侵犯下颌骨, 通常双侧累及,多见于下颌角区, 上颌骨也可侵犯。上颌病变广泛者可累及眶底和眶侧壁, 使眼球突出, 向上内翻,露出白色巩膜,可引起复视、视力减退等。
影像学表现:
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以下是 http://radiopaedia.org/articles/cherubism
Cherubism has historically been considered a variant of fibrous dysplasia, but in reality is likely a distinct entity.
家族性巨颌症曾被认为是纤维结构不良的一种变异,但实际上更象是一个独立的疾病。
Cherubism is inherited as an autosomal dominant disorder of variable penetrance, with onset in early childhood (typically in the 3-4 years of age). Interestingly penetrance is dependent on gender: 100% in males, 50-70% in females.
家族性巨颌症是常染色体显性遗传性疾病,在儿童早期发病(通常在3-4岁)。有趣的是外显率是依赖于性别:男性发病率100%,女性发病率50%-70%。
Clinical presentation is due to characteristic cosmetic changes in the face, consisting of:
Additionally submandibular lymph node enlargement may also be present. The teeth in the affected regions may be loose and tooth eruption delayed.
临床表现是根据脸部特征性的表现而改变,其中包括:
此外可能存在颌下淋巴结肿大,受累区域的牙齿可能松动和牙齿萌出延迟
Histological features are indistinguishable from a giant cell granuloma.
组织学上与巨细胞肉芽肿相似。
Radiographic features consists of lucent expanded regions within the maxilla and mandible, with soap-bubble appearance. As the lesion ages it often becomes sclerotic and may reduce in size.
影像学特征包括上下颌骨内多发膨胀性透亮影,呈皂泡样改变。病灶随着的年龄增长趋向硬化和体积缩小。
Despite the pronounced changes, the disease stabilises and often regresses without the need for treatment.
A cherub is a toddler or baby angel, often portrayed in art to have chubby cheeks and an upward gaze. In fact, such a divine being is more accurately called a putto, but in modern English usage the terms have become blurred, and patients with cherubism are implied to have a cherub-like facies.
来源:华夏影像诊断中心