Baena-Ocampo Leticia del Carmen, Encalada-Díaz Iván, Marín-Arriaga Norma
Servicio de Anatomía Patológica, Instituto Nacional de Rehabilitacion, Av. México-Xochimilco 289, Col. Arenal de Guadalupe, Del. Tlalpan, Mexico, D.F., Mexico.
Cir Cir. 2008 May-Jun;76(3):265-9.
Tendon sheath lipoma is an uncommon tumor characterized morphologically by mature fatty tissue lobes adherent to the tendon or intersecting its fibers. The association with quadriceps tendon rupture is unusual. Etiologic factors that may condition those ruptures have not yet been fully described. However, several authors suggest the existence of a subjacent pathology such as metabolic or inflammatory diseases. Minimal trauma may lead to such ruptures as well as associated ligamentous or bony injuries. The prognosis regarding quadriceps tendon rupture mainly depends on the lap between injury and time of repair.
We present the case of a quadricipital tendinous rupture produced by the presence of a benign neoplasm, which is a very infrequent association. The patient was surgically treated for quadriceps tendon reconstruction via tendinous reinsertion at the patella. Currently, during rehabilitation, the patient is symptom free with an almost-complete flexion/ extension of his left knee.
We consider that importance must be given to neoplastic disease as a cause of tendinous rupture, regardless of their infrequency and unusual clinical presentation.
腱鞘脂肪瘤是一种罕见肿瘤，其形态学特征为成熟脂肪组织叶附着于肌腱或横穿其纤维。与股四头肌肌腱断裂相关的情况并不常见。可能导致这些断裂的病因尚未完全阐明。然而，一些作者认为存在潜在病变，如代谢或炎症性疾病。轻微创伤也可能导致此类断裂以及相关的韧带或骨损伤。股四头肌肌腱断裂的预后主要取决于损伤与修复时间之间的间隔。
我们报告一例因良性肿瘤导致股四头肌肌腱断裂的病例，这种关联非常罕见。患者接受了手术治疗，通过在髌骨处重新插入肌腱进行股四头肌肌腱重建。目前，在康复过程中，患者无症状，左膝关节屈伸几乎完全正常。
我们认为，无论肿瘤性疾病导致肌腱断裂的情况多么罕见，临床表现多么不寻常，都必须重视其作为肌腱断裂病因的可能性。
