Smooth Muscle Surprise: Documenting a Primary Ovarian Leiomyosarcoma Case

Area of Science:

• Gynecologic Oncology
• Surgical Pathology
• Medical Oncology

Background:

• Primary ovarian leiomyosarcoma (LMS) is an exceptionally rare and aggressive malignancy originating from ovarian smooth muscle tissue.
• This tumor predominantly affects postmenopausal women and is often diagnosed at advanced stages, presenting a significant challenge due to its poor prognosis.

Observation:

• A 66-year-old woman presented with persistent lower abdominal pain, weight loss, and anorexia.
• Imaging revealed a large, heterogeneous solid left adnexal mass, indicative of a malignant ovarian neoplasm.
• Histopathological analysis confirmed high-grade spindle cell sarcoma, consistent with ovarian LMS, with immunohistochemistry supporting smooth muscle differentiation.

Findings:

• The patient underwent surgery and initiated chemotherapy but was lost to follow-up.
• The rarity of ovarian LMS limits understanding of adjuvant chemotherapy and radiotherapy efficacy.
• Diagnosis is challenging, and treatment options are scarce, contributing to a poor patient outlook.

Implications:

• This case underscores the diagnostic difficulties and limited therapeutic strategies for primary ovarian LMS.
• The lack of established standard treatments necessitates further research into effective therapeutic interventions for this aggressive cancer.
• Developing novel treatment approaches is crucial to improve outcomes for patients diagnosed with ovarian LMS.