Lymphatic Interventions · IR Playbook

Percutaneous Lymphocele Drainage and Sclerotherapy (-)

Image-guided aspiration or catheter drainage treats a symptomatic postoperative lymphocele. For a recurrent or persistent lymphocele, the cavity is completely aspirated and a sclerosant such as sodium tetradecyl sulfate (Setrol) or polidocanol is instilled. Agent concentration, volume and dwell time are institution-specific because no standardized regimen exists.

Indications

Symptomatic lymphocele causing pain, infection, hydronephrosis, venous compression or limb edema
Recurrent lymphocele after aspiration
Persistent lymphocele despite catheter drainage

Equipment

US or CT guidance equipment
18–21G access needle, guidewire and dilators
6–10 Fr locking pigtail catheter when prolonged drainage is required
Sodium tetradecyl sulfate (Setrol) or polidocanol
Diluted water-soluble contrast when cavitography is required

Procedure steps

Review imaging and select a safe route avoiding bowel, bladder, ureter and major vessels.
Enter under image guidance and aspirate the lymphocele completely. Send fluid for culture or biochemical analysis when the diagnosis or infection status is uncertain.
Observation may follow successful initial aspiration. Add sclerotherapy when the lymphocele recurs or remains persistent.
Re-aspirate the recurrent cavity completely and exclude an unsafe communication. Instill sodium tetradecyl sulfate (Setrol) or polidocanol using the validated institutional concentration, volume and dwell protocol.
Aspirate the sclerosant or reopen the catheter to drainage according to the agent-specific protocol. Repeat treatment only if clinically indicated.

Complications

Transient pain or inflammatory reaction
Infection
Chemical injury or hypersensitivity

Exam pearls

Aspiration first; sclerosant instillation for recurrent or persistent lymphocele.
Setrol is a brand of sodium tetradecyl sulfate, not polidocanol.
Intracavitary sclerosant regimens are not standardized; do not borrow venous-sclerotherapy doses.

Viva questions

When is sclerotherapy performed for a lymphocele?: It is principally used for a **recurrent or persistent lymphocele** after aspiration or catheter drainage.
Which sclerosants are commonly used in our practice?: Sodium tetradecyl sulfate, marketed as Setrol, and polidocanol are detergent sclerosants that may be used according to an institutional protocol.
What is done before instilling the sclerosant?: The lymphocele is completely aspirated and an unsafe communication with bowel, urinary tract or vessels must be excluded.