Presentation
The patient presented for a fine needle aspiration of a suspected left gluteal haematoma. Redness was noted over the skin in this region. The patient complained of pain and had a history of mild fever.
Patient Data
Longitudinal Ultrasound image of left gluteal mass for aspiration.
Under ultrasound guidance, approximately 10 cc of thick yellow-coloured fluid was aspirated from the collection. A sample was sent for pathological analysis.
Subsequently, a CT scan was performed for further evaluation, given the purulent fluid.
Portal venous study of abdomen and pelvis, with delayed study through the pelvic region.
On CT, a large loculated collection is observed in the left gluteus maximus muscle, superficially just below the level of the ischium, extending inferiorly and measuring 9 x 8 x 5 cm.
There is oedema in the surrounding subcutaneous fat, with no extension into the deeper musculature and no involvement of the adjacent bones.
A few locules of air are seen within, consistent with the preceding aspiration. Imaging confirms the presence of a gluteal abscess.
Case Discussion
The patient was referred for abscess drainage and management.
Pathology results of the aspirated fluid returned positive for Staphylococcus aureus.