Paraffinoma Excision and Penile Resurfacing
Paraffinoma — also called sclerosing lipogranuloma or oleogranuloma — is the chronic foreign-body granulomatous response to subcutaneous penile injection of liquid paraffin, mineral oil, Vaseline / petroleum jelly, or industrial-grade liquid silicone for cosmetic girth augmentation. Complete surgical excision of all granulomatous tissue followed by penile resurfacing is the definitive treatment; conservative therapy is rarely adequate. Reconstruction is dictated by the extent of foreign-material infiltration and the viability of native penile shaft skin.[1][2][3]
This is the dedicated atlas page for paraffinoma excision and reconstruction. For the causal substances, pathophysiology, imaging, and complication phenotype, see Non-Autologous Penile Injectables. For the male cosmetic decision framework, see Male Cosmetic Genital Surgery. For the broader penile-skin-reconstruction umbrella (Fournier's, lichen sclerosus, oncologic resection, avulsion), see Penile Skin / Shaft Reconstruction.
Indications
Surgery is required in the vast majority of paraffinoma patients — 78.8% across systematic-review literature and 91.4% in one large Pang single-center series.[2] The fundamental principle is complete excision of all grossly affected tissue to prevent recurrence, followed by reconstruction.[1][4] Common operative triggers:[2][5][6]
- Firm, irregular, indurated penile mass with cosmetic dissatisfaction (~57%)
- Pain or swelling (~46%)
- Erectile dysfunction
- Voiding difficulty / phimosis or failed urethral catheterization
- Skin necrosis or ulceration (up to 72.2% at presentation in advanced series[3])
- Migration with extension into the scrotum, perineum, or abdominal wall
Preoperative Considerations
- Extent of infiltration — clinical exam plus MRI when imaging is needed; MRI delineates the extent of granulomatous tissue, differentiates granuloma from malignancy, and supports surgical planning.[7]
- Native shaft-skin viability — the central determinant of reconstructive choice; the more native shaft skin that can be preserved, the simpler the reconstruction.[4]
- Combined Urology / Plastic Surgery approach is often optimal at experienced centers.[4]
- Psychological assessment — body dysmorphia and persistent size dissatisfaction are common and predict downstream dissatisfaction even after technically successful resurfacing.[5]
- Disclosure and counseling — patients are frequently reluctant to disclose injection history; a non-judgmental approach improves accuracy of timeline and substance reporting.[1]
Reconstructive Options
Six approaches dominate the literature. Selection is guided by skin involvement, scrotal-tissue availability, and surgeon experience.[8][4]
| Technique | Indication | Notes |
|---|---|---|
| Local excision + primary closure | Localized granuloma; sufficient native shaft skin | ~50% of cases in some series; circumcision often added; best cosmetic / functional outcome when feasible[3][9] |
| Bilateral scrotal flap — single stage | Extensive disease with circumferential shaft involvement | Most widely described; 90% surgical-success rate; all patients maintained intercourse capacity in the Jeong / Murányi series[10][11][12] |
| Bilateral scrotal flap — two stage | Extensive disease where staged maturation is preferred | Stage 1: excision + burial of denuded penis in scrotal tunnel; Stage 2 (3–6 months): release with scrotal-skin coverage; fewer complications (83.3% complication-free) but longer total stay[8][3][13] |
| Split-thickness skin graft (STSG) | Scrotal skin unavailable / insufficient | Kang 2026 NPWT-assisted protocol with dermal substitute (Matriderm) achieves 90.9% near-complete graft take in a single stage, avoiding complex flap surgery[14] |
| Full-thickness skin graft (FTSG) | Donor site available; better cosmesis than STSG | Harvested from biceps, thigh, or other sites[5][8] |
| Bipedicled scrotal flap with Y-V incision | Extensive disease with concern for length shortening or ventral necrosis | Y-V advancement at dorsal base preserves length; inverted V-shape ventral closure prevents ventral skin necrosis at the coronal suture line[15][12] |
Pang single-center distribution
In the Pang single-centre / SR cohort (n = 35), procedures used:[2]
- Local excision + primary closure: 59.4%
- Concurrent circumcision: 15.6%
- Scrotal-flap reconstruction (single- or two-stage): the majority of complex cases
- More than one procedure was required in 18 of 35 patients (51%).
Surgical Technique — Bilateral Scrotal Flap (Single Stage)
The single-stage bipedicle scrotal-flap is the workhorse for circumferential shaft involvement.[12][15]
- Subcoronal incision. Circumferential incision just proximal to the corona, sparing the glans.
- Penoscrotal incision. Second circumferential incision at the penoscrotal junction.
- Complete shaft degloving. Excise all involved skin and subcutaneous tissue down to Buck's fascia, preserving the dorsal neurovascular bundle, urethra, and corpora cavernosa / spongiosum.[12][15]
- Design and mobilize bilateral scrotal flaps with a robust subcutaneous pedicle.
- Subcutaneous tunnel. Create a tunnel between the scrotal incision and the proximal penile incision.[12]
- Pull-through. Deliver the denuded penis through the scrotal tunnel.
- Flap inset. Advance and suture flaps to the subcoronal margin dorsally; close ventrally with an inverted V-shape to reduce tension at the coronal suture line and prevent ventral skin necrosis.[12][15]
- Layered scrotal closure.
Two-stage variant
- Stage 1. Excision of granuloma; the denuded penis is buried within a scrotal tunnel for skin maturation over 3–6 months.
- Stage 2. Release of the penis from the scrotum; scrotal skin is fashioned into definitive penile coverage. Lumbiganon 2023 reported 83.3% complication-free outcomes with the two-stage approach vs 43.5% for single-stage in their comparative series — at the cost of longer total recovery.[13]
NPWT-assisted STSG (single-stage alternative)
- Kang 2026 protocol: complete excision, application of dermal substitute (Matriderm), STSG, then negative-pressure wound therapy at −125 mmHg.
- 90.9% near-complete graft take in 11 patients; median satisfaction 37/45.[14]
- A useful single-stage option when scrotal-skin availability is limited or two-stage flap surgery is undesirable.
Outcomes
| Series | n | Technique | Success | Complications |
|---|---|---|---|---|
| Murányi 2022[12] | 49 | Bipedicle scrotal flap (single stage) | 90% | 26.5% Clavien 1–3b; ED in 6.7% |
| Lumbiganon 2023[13] | 31 | Single- vs two-stage scrotal flap | — | Complication-free: 43.5% (single) vs 83.3% (two-stage); fever 56.5% vs 8.3% |
| Suleiman 2024[3] | 18 | Excision ± scrotal flap | 100% | Necrosis 72.2% at presentation |
| Marín-Martínez / Dekalo 2023[4] | Multicentre | Single- vs two-stage algorithm | — | Erectile function preserved in all cases |
| Kang 2026[14] | 11 | NPWT + dermal substitute + STSG | 90.9% near-complete graft take | Single stage |
Erectile function is preserved in the great majority of patients across series — granulomatous tissue typically lies superficial to Buck's fascia and dissection in the correct plane spares the cavernous tissue and dorsal neurovascular bundle.[4][12]
Complications
| Complication | Rate / note |
|---|---|
| Wound infection | ~8.7% (single-stage)[12] |
| Wound dehiscence | 8–22%[12][13] |
| Postoperative fever | 56.5% (single-stage) vs 8.3% (two-stage)[13] |
| Partial graft / flap loss | Variable; higher with STSG[14] |
| Penile lymphedema | Reported across series |
| Chronic discharge from residual filler | Indicates incomplete excision; may require reoperation[1] |
| Erectile dysfunction | Uncommon (preserved in most series)[4] |
| Reoperation | 8–26%; 51% of Pang patients required > 1 procedure[2] |
Non-Surgical Options
Conservative therapy is rarely adequate as definitive treatment.[6]
- Intralesional triamcinolone and hot-water baths have been described as temporizing measures for patients who decline surgery.
- These approaches do not reverse established granulomatous infiltration and do not address skin necrosis or migration.
Key Principles
- Complete excision of all grossly involved tissue is mandatory; incomplete excision leads to recurrence and chronic discharge.[1][4]
- Scrotal skin is the preferred local flap donor — elasticity, proximity, and reliable subcutaneous pedicle.[10][12]
- Two-stage scrotal flap has fewer complications but a longer recovery; single-stage is the workhorse when patient and surgeon select for efficiency.[13]
- NPWT + dermal substitute + STSG is a valid single-stage alternative when scrotal donor tissue is insufficient.[14]
- Erectile function is preserved in the great majority — granuloma typically sits superficial to Buck's fascia.[4][12]
- Inverted V-shape ventral closure at the coronal margin reduces tension and prevents ventral skin necrosis.[12][15]
- Psychological support and counseling about persistent size dissatisfaction are essential — surgical resurfacing does not address the underlying body-image concern that drove the original injection.[5]
References
1. Cohen JL, Keoleian CM, Krull EA. Penile paraffinoma: self-injection with mineral oil. J Am Acad Dermatol. 2001;45(6 Suppl):S222-4. doi:10.1067/mjd.2001.103995.
2. Pang KH, Randhawa K, Tang S, et al. Complications and outcomes following injection of foreign material into the male external genitalia for augmentation: a single-centre experience and systematic review. Int J Impot Res. 2024;36(5):498-508. doi:10.1038/s41443-023-00675-8.
3. Suleiman M, Mustafa A, Ainayev Y, et al. The surgical management of penile oleogranuloma: case series. Int J Impot Res. 2024;36(5):509-514. doi:10.1038/s41443-023-00779-1.
4. Marín-Martínez FM, Guzmán Martínez-Valls PL, Dekalo S, Weiss J, Haran O. Aesthetic and functional results after single- and two-stage resection and reconstruction of penile paraffinomas — experience from two tertiary centers and a surgical management algorithm. Urology. 2023;171:227-235. doi:10.1016/j.urology.2022.09.022.
5. Lauria J, Zappalà G, Sidoti FC, et al. Paraffinoma of the penis following subcutaneous paraffin injections: a case report and surgical management. Int J Impot Res. 2026;38(3):266-267. doi:10.1038/s41443-025-01169-5.
6. Akkus E, Iscimen A, Tasli L, Hattat H. Paraffinoma and ulcer of the external genitalia after self-injection of Vaseline. J Sex Med. 2006;3(1):170-2. doi:10.1111/j.1743-6109.2005.00096.x.
7. Wang J, Shih TT, Li YW, Chang KJ, Huang HY. Magnetic resonance imaging characteristics of paraffinomas and siliconomas after mammoplasty. J Formos Med Assoc. 2002;101(2):117-23.
8. Napolitano L, Marino C, Di Giovanni A, et al. Two-stage penile reconstruction after paraffin injection: a case report and a systematic review of the literature. J Clin Med. 2023;12(7):2604. doi:10.3390/jcm12072604.
9. Santucci RA, Zehring RD, McClure D. Petroleum jelly lipogranuloma of the penis treated with excision and native skin coverage. Urology. 2000;56(2):331. doi:10.1016/s0090-4295(00)00625-7.
10. Jeong JH, Shin HJ, Woo SH, Seul JH. A new repair technique for penile paraffinoma: bilateral scrotal flaps. Ann Plast Surg. 1996;37(4):386-93. doi:10.1097/00000637-199610000-00007.
11. Wong KT, Lee PS, Chan YL, Chow LT. Paraffinoma in anterior abdominal wall mimicking liposarcoma. Br J Radiol. 2003;76(904):264-7. doi:10.1259/bjr/31110098.
12. Murányi M, Varga D, Kiss Z, Flaskó T. A new modified bipedicle scrotal skin flap technique for the reconstruction of penile skin in patients with paraffin-induced sclerosing lipogranuloma of the penis. J Urol. 2022;208(1):171-178. doi:10.1097/JU.0000000000002480.
13. Lumbiganon S, Pachirat K, Sirithanaphol W, et al. Surgical treatment of penile foreign body granuloma: penile shaft reconstruction with single- versus two-stage scrotal flap techniques. Int J Urol. 2023;30(8):681-687. doi:10.1111/iju.15209.
14. Kang D, Hong SE, Kim YH. Single-stage penile resurfacing for foreign body granuloma: a simplified negative pressure wound therapy-assisted protocol with dermal substitute. Urology. 2026. doi:10.1016/j.urology.2026.04.013.
15. Shin YS, Zhao C, Park JK. New reconstructive surgery for penile paraffinoma to prevent necrosis of ventral penile skin. Urology. 2013;81(2):437-41. doi:10.1016/j.urology.2012.10.017.