Squamous cell carcinoma of the cervix with psoas abscess-like metastasis in an HIV-negative patient.

A psoas abscess-like metastasis of squamous cell carcinoma of uterine cervix was diagnosed in a 50-year-old, HIV-negative woman. While there was complete regression of the primary tumor, the psoas cystic lesion grew in size during chemotherapy, with iliac bone destruction and invasion to the gluteus muscle. A computed tomography-guided bone biopsy was done and histopathologic examination revealed squamous cell carcinoma consistent with the primary lesion. Intratumoral injection of cisplatin and radiotherapy resulted in partial relief of symptoms. This form of aggressive, bone destruction metastasis was hitherto reported only in association with AIDS.