synonyms:retinacular cyst, ganglion of tendon sheath
Retinacular cyst ICD-10
- M67.40 - Ganglion, unspecified site
- M67.41 - Ganglion, shoulder
- M67.411 - Ganglion, right shoulder
- M67.412 - Ganglion, left shoulder
- M67.419 - Ganglion, unspecified shoulder
- M67.42 - Ganglion, elbow
- M67.421 - Ganglion, right elbow
- M67.422 - Ganglion, left elbow
- M67.429 - Ganglion, unspecified elbow
- M67.43 - Ganglion, wrist
- M67.431 - Ganglion, right wrist
- M67.432 - Ganglion, left wrist
- M67.439 - Ganglion, unspecified wrist
- M67.44 - Ganglion, hand
- M67.441 - Ganglion, right hand
- M67.442 - Ganglion, left hand
- M67.449 - Ganglion, unspecified hand
- M67.45 - Ganglion, hip
- M67.451 - Ganglion, right hip
- M67.452 - Ganglion, left hip
- M67.459 - Ganglion, unspecified hip
- M67.46 - Ganglion, knee
- M67.461 - Ganglion, right knee
- M67.462 - Ganglion, left knee
- M67.469 - Ganglion, unspecified knee
- M67.47 - Ganglion, ankle and foot
- M67.471 - Ganglion, right ankle and foot
- M67.472 - Ganglion, left ankle and foot
- M67.479 - Ganglion, unspecified ankle and foot
- M67.48 - Ganglion, other site
- M67.49 - Ganglion, multiple sites
Retinacular cyst ICD-9
- 727.42 Ganglion of tendon sheath
Retinacular cyst Etiology / Epidemiology / Natural History
- etiology is unknown, thought to be related to mucoid degeneration of collagen tissue.
- Most common in the flexor tendon sheaths of the hand
Retinacular cyst Anatomy
- Cyst are filled with viscous, jellylike clear mucin.
Retinacular cyst Clinical Evaluation
- Firm, smooth, tender nodule / mass in the hand. Generally very firm, pea sized.
Retinacular cyst Xray / Diagnositc Tests
- Hand xrays generally normal.
- No further imaging is generally needed.
Retinacular cyst Classification / Treatment
- Aspiration / disrupting lesion with multiple punctures : recurrence rate = 13% to 100% (Zubowicz VN, J Hand Surg [Am] 1987; 12:618)
- Surgical excision: cyst must be excised at the origin to include a small portion of the tendon sheath to prevent recurrence.
- We again discussed the natural history and both operative and non-operative treatment options. All questions were answered. We discussed the risks of surgery including, but not limited to: infection, recurrence, CRPS, deep vein thrombosis, pulmonary embolus, nerve or vascular injury, stiffness, incomplete relief of pain, incomplete return of function, need for further surgery and the risks of anesthesia including heart attack, stroke and death. After discussion they elected to proceed with surgery.
Retinacular cyst Associated Injuries / Differential Diagnosis
Retinacular cyst Complications
Retinacular cyst Follow-up Care
- Gentle ROM, activity limitations for 2 weeks to allow incision healing
Retinacular cyst Review References
- Plate AM, JAAOS 2003;2:129-141