For three years, a 56-year-old woman carried a chronic, nonhealing, draining abscess on her right cheek. Her doctors suspected cervicofacial actinomycosis, a stubborn bacterial infection of the face and neck.
A punch biopsy sent for culture came back negative for bacteria, fungi, and atypical mycobacteria. Because of the lesion’s size and depth, surgeons removed it entirely and sent it for pathology. The answer had nothing to do with infection.
Microspheres and Gel, Under the Microscope
The tissue contained polymethyl methacrylate microspheres, rounded vacuolated spaces 30 to 50 micrometers in diameter, and hyaluronic acid, all surrounded by foreign-body granulomas, granulomatous inflammation, and abundant reactive lymphoid tissue. Special stains for fungi, mycobacteria, and bacteria were all negative, ruling out an infectious cause. Both materials are dermal fillers, one semi-permanent and one temporary.
The case was published in JMIR Dermatology by Monika Ziogaite of Kansas City University’s College of Osteopathic Medicine and colleagues in Colorado and Texas. The patient recovered completely after the excision.
The authors’ framing is the useful part. Delayed filler complications can mimic chronic bacterial infection closely enough to send a workup in the wrong direction for years, and prior cosmetic procedures are exactly the piece of history most likely to go unmentioned.
Filler Does Not Always Stay Where It Is Put
The idea that injectables remain fixed at the injection site is an assumption rather than a rule, and the case literature is full of exceptions.
A report in Clinical, Cosmetic and Investigational Dermatology described a 71-year-old woman who developed a rapidly growing mass roughly 15 millimeters across, lateral to her nasal root, over about two weeks. The diagnostic hypotheses her dermatologists considered were alarming: Merkel cell carcinoma, cutaneous lymphoma, pseudolymphoma, facial granuloma and nodular basal cell carcinoma. High-frequency ultrasound identified a hyaluronic acid filler pseudocyst instead. The filler had been injected into the nasal radix ten months earlier and had shifted, most likely displaced by repeated contraction of the muscles between the brows. She had not mentioned the procedure.
Migration can travel much farther. Surgeons reporting in JTCVS Techniques described a 42-year-old woman whose chest radiograph, taken before an appendectomy, showed an enlarged mediastinal mass. CT found multiple enlarged, confluent mediastinal lymph nodes encasing the superior vena cava and other great vessels, a picture concerning for lymphoma. A supraclavicular node biopsy showed amorphous basophilic material with foreign body giant cell reaction, and breast MRI obtained on a second opinion revealed that filler injected for breast augmentation 15 years earlier had tracked into her chest. Unlike an implant, injected filler has no shell to contain it.
The FDA lists migration among the reported risks of dermal fillers, alongside granulomas, permanent hard nodules, and, rarely, vascular occlusion that can cause tissue death or vision loss.
Late Complications Are a Different Category Than Early Ones
Timing is the useful dividing line, and the literature on postmarket surveillance draws it at 14 days. Events that occurred before that, such as bruising, swelling, and lumps, tend to reflect the injection technique. Events after that are more likely to be product-related, and they are the ones that unsettle clinicians because they can surface months or years later. Delayed nodules and inflammatory reactions are frequently immune-mediated rather than infectious and often require removing the product.
The FDA notes plainly in its consumer guidance that while most side effects appear soon after injection and resolve within days to weeks, in some cases they emerge weeks, months, or years later.
Material type matters too. Hyaluronic acid fillers can be dissolved with the enzyme hyaluronidase. Semipermanent and permanent materials, including polymethyl methacrylate and calcium hydroxylapatite, cannot be and must either break down on their own timeline or be removed surgically. The patient in the Kansas City case had both categories in her cheek at once.
Lumps are the single most reported problem. A 21-year analysis of the FDA’s device adverse event database covering June 1993 through August 2014 found that the most frequently reported events associated with injectables were lumps at 39.2 percent, followed by infection at 12.9 percent and swelling at 10.2 percent, across 3,782 reports.
The Practical Problem This Creates
None of this makes dermal fillers dangerous in any general sense. Millions of injections are performed without incident, and the complications described here are documented precisely because they are unusual enough to be worth publishing. The adverse event databases behind those percentages are also passive systems that capture only what someone chooses to report.
The problem is narrower and more fixable. When a patient forgets a cosmetic procedure, or does not think to mention it, or is embarrassed to, the clinician facing an unexplained facial mass is working from an incomplete map. In the Kansas City case, that gap contributed to three years of a chronic wound treated as a presumed infection. In the nasal radix case, it led to a differential list headed by two cancers.
The lesson the authors draw is consistent across these reports: prior cosmetic injections belong in the medical history permanently, alongside surgeries and medications. Anyone who develops a new lump, persistent swelling, or a non-healing sore near a previous injection site should tell a physician what was injected, where, and when, and should raise concerns with a qualified clinician rather than attempting to self-assess.
Key Questions Answered
What happened in the published case?
A 56-year-old woman had a draining cheek abscess for three years that was treated as a suspected bacterial infection. Pathology after surgical removal showed dermal filler surrounded by foreign body granulomas.
Can dermal filler really move from where it was injected?
Yes. Migration is uncommon but documented, and the FDA lists it among reported filler risks. Published cases include movement across the face and, in one instance, from the breast into the chest.
How long after injection can problems appear?
Most reactions occur within days to weeks. Delayed complications, generally defined as those occurring more than 14 days out, can surface months or years later.
Why do patients not mention prior filler?
Injections may have been years earlier, and patients often do not connect a cosmetic procedure to a current medical problem. Several published cases turned out only after the history was revisited.
Can filler be removed?
Hyaluronic acid fillers can be dissolved with hyaluronidase. Semipermanent and permanent materials cannot be removed and may require surgical removal.
What should patients do?
Keep cosmetic injections in your permanent medical history and tell any clinician evaluating a facial lump what was injected, where, and when.
