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Hypercalcemia in a male-to-female transgender patient after body contouring injections: a case report
© Visnyei et al.; licensee BioMed Central Ltd. 2014
Received: 24 April 2013
Accepted: 29 August 2013
Published: 26 February 2014
Body contouring injections by non-licensed providers are frequently sought out by a subset of the male-to-female transgender community. Although short-term side effects such as pulmonary embolism and injection site infection are well known, long-term consequences of such practices are less well studied.
Here we describe the case of a 40-year-old African American male-to-female transgender patient who presented to our institution with hypercalcemia and acute renal failure secondary to body contouring injections with industrial strength silicone by non-licensed providers, a decade prior to her visit. Work-up revealed an extensive granulomatous inflammatory process in the injection area resulting in electrolyte abnormalities and kidney injury. The patient’s lab results and symptoms responded well to long-term corticosteroid treatment and correlated with treatment adherence.
Affected patients can sometimes present with unusual clinical symptoms many years after silicone injections. In a constantly growing transgender community that often utilizes non-licensed providers for silicone injections, the medical community will likely face an increasing number of patients with long-term side effects of such practices. Therefore, it is imperative for physicians to recognize such cases promptly and initiate potentially life-saving treatment.
Injections with various fillers, including mineral and organic oils like paraffin, petrolatum, camphor oil, silicone and vegetable oils have been practiced for more than a century. The first known injection in modern medical history was performed by an Austrian surgeon, Robert Gersuny in 1899 [1, 2]. He injected Vaseline®, a petroleum jelly brand, into the scrotal sack of a patient who underwent orchiectomy due to tuberculous epididymitis. His peer, Eckstein established the use of paraffin as an alternative to petroleum jelly, since it had a higher melting temperature (65°C) and therefore did not soften after the injection. Paraffin was injected in a semi-liquid state after heating, and solidified as it got colder, remaining stable and inert in the human body . Soon other indications followed with both Vaseline® and paraffin, which were used to treat various medical conditions including fistulae, nasal defects and micrognathia, but were also used for wrinkles and body part augmentation, mostly in the breasts and the penis . Such injections remained popular for the first few decades of the 20th century, until long-term side effects became evident in the form of paraffinomas and lipogranulomas. These tumors developed through the dissemination of the foreign material and were extremely difficult to treat [3, 4].
Today, an entire century later, we are witnessing a renaissance of body filler injections, albeit with much improved techniques and most importantly, refined, high-tech materials. While such materials seem to enable a relatively safe and side effect poor application, a large number of patients use cheap and unpurified industry-grade products, seemingly due to their financial and accessibility benefits. Additionally, these fillers are often administered by non-licensed providers, exposing patients to further risk of developing health problems. This is a growing problem in distinct subcultures, like the transgender community, where body-contouring is a much sought-after part of body image transformation.
While immediate and short-term complications of such practices are well known and can be diagnosed relatively easily, much less is known about long-term complications, which are also more challenging to recognize [3, 5, 6]. The major problem is still the development of foreign body granulomatous reactions, and various associated medical conditions. Here we present a case of a transgender patient who presented to our institution with unusual and remarkably serious long-term complications of hypercalcemia and kidney failure after industry-grade silicone injections for body contouring purposes.
Based on the physical, laboratory, imaging and histological findings, the diagnosis of hypercalcemia caused by silicone-induced granulomatous disease was established. In this condition, PTH is typically suppressed by high calcium levels and hypercalcemia occurs due to PTH-independent extrarenal production of 1,25 dihydroxy-vitamin D from 25-hydroxyvitamin D by activated mononuclear cells .
Injection of organic or inorganic oils has been described to lead to development of a foreign body reaction in the form of a chronic granulomatous inflammation. This happens after an acute inflammatory phase of several months followed by a latent phase that can last several years . The average time to development of first clinical symptoms including sclerodermatous skin changes, tissue hardening, skin hyperpigmentation and development of subcutaneous lumps, nodules and occasional ulcerations, is approximately 6 years . The tumors caused by granulomatous reaction are called oleomas, paraffinomas or siliconomas, depending on the foreign material involved.
Many foreign-body induced tumors have been described in the literature, however the major cause of presentation is almost always of cosmetic nature [4, 6]. Our case stands out due to the unusually serious presentation with clinically symptomatic hypercalcemia and renal failure. While the development of calcitriol-related hypercalcemia in granulomatous diseases in general has been well described, it has not been associated with body contouring-induced siliconomas. A potential possibility for the severe electrolyte changes in this particular case might be the unusually large amount of injected material and the large anatomic area involved.
Elevated 1,25 dihydroxy-vitamin D levels lead to increased intestinal absorption and increased bone resorption of calcium, resulting in hypercalcemia, hypercalcuria, nephrocalcinosis and kidney stones, as well as decreased parathyroid hormone levels. Hypercalcemia is typically worsened by renal insufficiency. It usually varies with calcium intake and can be corrected with dietary restriction of calcium. Exposure to sunlight might also worsen hypercalcemia and can cause seasonal variation of calcium levels .
Of note, our patient had normal 1,25 dihydroxy-vitamin D levels upon presentation. One possible explanation for this is the low amount of 25 hydroxy-vitamin D that is available for hydroxylation by 1-alpha-hydroxylase. This would result in lower than expected 1,25 vitamin D levels, even in the presence of increased enzyme activity. Therefore, the relative ratio of 25 hydroxy and 1,25 dihydroxy vitamin D might be more informative than the absolute 1,25 dihydroxy vitamin D level in assessing enzymatic activity in this setting.
Depending on the anatomic location and the extension of the disease, surgical resection can be often performed, either with curative or non-curative, debulking intent. In the case of our patient, surgery was not an option, due to the bare extent of the disease and due to widespread tissue infiltration. Furthermore, the patient declined a figure-altering surgical procedure.
An important observation was that the synthesis of 1,25 dihydroxy-vitamin D in isolated alveolar macrophages of sarcoma patients markedly diminished by the addition of dexamethasone, in a dose-dependent manner . This explains the response of hypercalcemia to steroid treatment in patients with sarcoidosis and other granulomatous diseases. Analogously, foreign material-induced granulomas can be treated conservatively with regionalized corticosteroid injections, especially in the case of smaller lesions. Minocycline, cyclosporine and allopurinol have been used with some success as well . Of note, hydroxychloroquine and ketoconazole have been shown to be effective in treating hypercalcemia in sarcoidosis [19, 20]. In contrast to long-term steroids, their milder side effect profiles might make them preferable candidates, however their exact role in treating siliconomas and paraffinomas is still to be explored. In our patient’s case, due to extensive disease, systemic corticosteroid treatment was necessary along with specific calcium lowering management. For the latter, treatment options include reducing calcium intake, elimination of dietary vitamin D supplements, avoidance of sun exposure and if needed, bisphosphonates.
In our case, longitudinally measured calcium levels seemed to have correlated well with corticosteroid treatment and disease activity, as seen on imaging studies. Therefore, it might be a useful tool to monitor disease improvement or progression in patients presenting with extensive disease and severe hypercalcemia.
Renal failure has been extensively described in granulomatous diseases, like sarcoidosis. The main pathophysiological mechanism of kidney involvement seems to be a granulomatous inflammation confined to the tubulointerstitial compartment , however interstitial and membranous nephritis without any evidence of granuloma has been described as well . The exact mechanism of development of renal failure in siliconoma or paraffinomas-associated granulomatous disease is still unclear however.
With a worldwide trend of increasing demand to undergo physique-altering procedures, in the transgender but also other communities, we can expect to see more patients with short and long-term complications of body contouring practices. Long-term complications include localized skin changes and the development of lipogranuloma. However, in case of more extensive disease, hypercalcemia can develop with potentially life-threatening complications. It will be important to recognize these symptoms as possible complications of foreign body injections, and to initiate treatment in a timely manner. Most importantly however, this report would like to stress the importance of informing patients about potential side effects of improper and large-scale body contouring practices by non-licensed providers.
Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
The authors would like to thank Dr Adreienne M. Fleckman in the Department of Endocrinology for reviewing the manuscript, and Dr. Lawrence Kiss in the Department of Pathology at Beth Israel Medical Center for the histologic images.
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