Plantar Fibroma & Plantar Fibromatosis: Arch Nodule Treatment Michigan | Podiatrist

Quick answer: Plantar Fibroma Fibromatosis Arch Nodule Michigan is a common foot/ankle topic that affects many patients. Effective treatment starts with a targeted diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Hills practices. Call (810) 206-1402.

Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

A plantar fibroma — a firm, non-tender nodule within the plantar fascia — is a benign fibroblastic growth that develops in the central cord of the plantar fascia, most commonly in the medial arch. When multiple nodules develop or the entire plantar fascia thickens and contracts, the condition is called plantar fibromatosis (Ledderhose disease). At Balance Foot & Ankle, Dr. Tom Biernacki, DPM manages plantar fibromas and fibromatosis with a range of conservative and surgical options in Howell and Bloomfield Hills, Michigan. Call (810) 206-1402.

Quick Answer: What Is a Plantar Fibroma?

A plantar fibroma is a benign fibroblastic tumor arising from the plantar fascia — the thick connective tissue band running along the bottom of the foot from heel to toes. It presents as a firm, immovable nodule within the arch, usually 0.5–3 cm in diameter. Unlike ganglion cysts (which are soft and compressible), plantar fibromas are firm, do not transilluminate, and are anchored within the fascia itself. They are almost always benign — malignant plantar fibrosarcoma is exceedingly rare — but can cause significant pain from shoe pressure. They do not resolve spontaneously and may slowly grow or multiply over years.

Association with Dupuytren’s and Peyronie’s Disease

Plantar fibromatosis is part of a systemic fibromatosis spectrum. Approximately 10–25% of patients with Ledderhose disease (plantar fibromatosis) have concurrent Dupuytren’s contracture (palmar fibromatosis — cord formation in the palm causing finger flexion contracture) or Peyronie’s disease (penile fibromatosis — plaque causing curvature). The presence of any one of these conditions increases the likelihood of the others. Genetics plays a significant role — northern European descent is the strongest risk factor. Other associations: alcoholic liver disease, diabetes, epilepsy (particularly phenobarbital use), and manual labor. This systemic nature has implications for treatment — isolated plantar fibroma excision has higher recurrence rates in patients with the systemic fibromatosis diathesis.

Diagnosis

Diagnosis is typically clinical — a firm nodule within the plantar fascia, non-compressible, located in the medial or central arch (not the heel, which would suggest a heel spur or plantar fasciitis). MRI is the confirmatory imaging study — it characterizes the lesion size, extent within the fascia, and relationship to neurovascular structures; it also distinguishes plantar fibroma from the rare plantar fibrosarcoma (low T2 signal, well-defined margins in fibroma vs. heterogeneous, infiltrative in sarcoma). Diagnostic ultrasound is a faster, less expensive alternative that adequately characterizes most plantar fibromas and can guide injection therapy. Biopsy is not routinely required for typical presentations but should be performed for rapidly growing, atypical, or systemically associated lesions.

Conservative Treatment Options

Offloading orthosis: A custom orthotic with a plantar fibroma accommodation (a cutout or depression in the insole material over the nodule location) eliminates direct shoe pressure on the fibroma during walking — the most effective conservative pain management for symptomatic fibromas. Many patients achieve adequate pain control with offloading alone for years without requiring more aggressive treatment.

Corticosteroid injection: Intralesional corticosteroid injection into the fibroma can reduce nodule size by 30–50% and provides significant pain relief in 60–70% of patients. Response is temporary (3–6 months typically) and multiple injections over time are often needed. Serial injections do not cure the lesion but can manage symptoms indefinitely in patients who are not surgical candidates.

Verapamil injection: The calcium channel blocker verapamil injected intralesionally inhibits fibroblast proliferation — mechanism similar to its use in Peyronie’s disease. Evidence is limited but suggests reduction in nodule size and firmness over a series of 6–12 injections. Most useful for early, small fibromas where preventing progression is the goal.

Radiation therapy: Low-dose radiation (21 Gy in 3 fractions or similar protocols) is the most evidence-based non-surgical treatment for plantar fibromatosis — particularly for patients with diffuse thickening rather than discrete nodules. It inhibits fibroblast proliferation and can stabilize or reduce lesion burden in 70–80% of patients. Used in Europe more widely than in the US; available at select radiation oncology centers with foot and ankle collaboration.

Surgical Excision

Surgical excision is reserved for symptomatic fibromas that have failed comprehensive conservative treatment. The critical surgical principle: complete plantar fasciectomy — removal of the entire plantar fascia including uninvolved segments — is required for acceptable recurrence rates in fibromatosis cases. Simple “shelling out” of the fibroma alone has a recurrence rate exceeding 60%. Complete fasciectomy reduces recurrence to 20–25% at 5 years — still significant, but substantially better. The trade-offs of complete fasciectomy: risk of plantar fascia insufficiency with late arch collapse; risk of neurovascular injury; prolonged recovery (6–12 weeks non-weight-bearing); and significant wound healing challenges from the plantar skin closure. Patients with systemic fibromatosis diathesis (concurrent Dupuytren’s or Peyronie’s) have higher recurrence rates even after complete fasciectomy and should be counseled accordingly.

Most Common Mistake with Plantar Fibroma

The most common mistake: pursuing surgical excision of a single small fibroma before attempting offloading orthotics and intralesional injection. In our clinic, the majority of plantar fibroma patients achieve adequate long-term symptom control with a well-made accommodative orthotic — no injection required. The minority who need injection achieve good results with 1–3 corticosteroid injections. Surgical excision, with its significant risks of incomplete excision and recurrence, is the last resort — not the first answer to a palpable arch nodule.

Schedule a Plantar Fibroma Evaluation

Dr. Tom Biernacki evaluates and treats plantar fibromas and Ledderhose disease at Balance Foot & Ankle — Howell (4330 E Grand River Ave) and Bloomfield Hills (43494 Woodward Ave #208), Michigan. Book online or call (810) 206-1402.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your foot lumps and cysts, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Frequently Asked Questions

When should I see a podiatrist?

If symptoms persist past 2 weeks, affect your normal activity, or are accompanied by red-flag symptoms (warmth, redness, swelling, inability to bear weight).

What does treatment cost?

Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Out-of-pocket costs vary by your specific plan.

How quickly can I get an appointment?

Most non-urgent cases see us within 5 business days. Urgent cases (sudden pain, possible fracture) typically same or next business day.