Resolution of pelvic postoperative spindle cell nodule with sarcomatous onset after 9 years of follow‐up
Abstract
Introduction
Postoperative spindle cell nodules are benign and reactive lesions that occur at the previous surgical site. It often develops like a sarcoma and is resected via highly invasive procedures. To date, there have been no published reports on the natural progression of postoperative spindle cell nodules without surgical intervention.
Case
A 45‐year‐old woman underwent a total abdominal hysterectomy for leiomyoma. A 5‐cm pelvic mass exposed in the vaginal stump developed 7 weeks later, causing genital bleeding. Positron emission tomography–computed tomography revealed a pelvic mass and an enlarged pelvic lymph node with high uptake. We suspected an invasive sarcoma in the pelvis. However, through a transvaginal needle biopsy, the mass was diagnosed as a postoperative spindle cell nodule posthysterectomy. The nodule slowly reduced in size and completely disappeared 9 years posthysterectomy.
Conclusions
Correct diagnosis of this nodule with sarcomatous onset based on biopsy was important to avoid unnecessary surgeries. The lesion completely disappeared spontaneously after long‐term follow‐up.