Sprinkle Robert L B, Sangueza Omar P, Wells Ashleigh E
J Am Podiatr Med Assoc. 2017 May;107(3):244-247. doi: 10.7547/16-044.
Angioleiomyomas are benign tumefactions that originate from smooth muscle in vascular structures and are difficult to definitively diagnose preoperatively. Although these lesions are rarely encountered in the foot, the lower extremity is the most common site of occurrence. An angioleiomyoma typically manifests as a small, painful, solitary, mobile lesion. This case report describes a lateral retromalleolar para-Achilles tendon insertional location for a moderately sized immobile solid tumefaction in the subcutaneous tissues. The lesion was nonpainful and progressively enlarged over 5 years. An excisional biopsy was performed, and the nodular lesion was subsequently diagnosed histopathologically as an angioleiomyoma. Owing to the ambiguous nature of the clinical findings, angioleiomyoma should be included in the differential diagnosis of lower-extremity soft-tissue manifestations.
血管平滑肌瘤是起源于血管结构中平滑肌的良性肿瘤，术前难以明确诊断。虽然这些病变在足部很少见，但下肢是最常见的发病部位。血管平滑肌瘤通常表现为一个小的、疼痛的、孤立的、可移动的病变。本病例报告描述了一例位于外踝后方跟腱旁插入部位皮下组织的中等大小、固定实性肿物。该病变无疼痛，5年间逐渐增大。进行了切除活检，随后经组织病理学诊断该结节性病变为血管平滑肌瘤。由于临床表现不明确，血管平滑肌瘤应列入下肢软组织表现的鉴别诊断中。
