Case 3 (2024): Surgical Management of Soft Tissue Calcium Deposition in the Lower Limbs: A Case Report

K. Kaushal; L. McClymont; K. Munro . Dundee

Journal of Plastic, Breast & Reconstructive Surgery·Fagfællebedømte kirurgiske case-rapporter med åben adgangFagfællebedømt · Open access

Case 3 (2024): Surgical Management of Soft Tissue Calcium Deposition in the Lower Limbs: A Case Report · JPBRS

Case-rapport

Case 3 (2024): Surgical Management of Soft Tissue Calcium Deposition in the Lower Limbs: A Case Report

K. Kaushal, L. McClymont, K. Munro . Dundee

Publiceret 31. marts 2024142 visninger5 min læsning

Calcinosis cutiscalcium depositsdebridementexcision.

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Resumé

Vigtigste læringspunkter

Pearls

The radiologist plays a critical role in avoiding unnecessary invasive procedures and in guiding the selection of appropriate tests that can result in a conclusive diagnosis of calcinosis cutis.

Pitfalls

The treatment is challenging and depends on the cause. The key is to avoid trauma, smoking cessation, decrease stress and exposure to the cold. Smaller lesions have been reported to respond to warfarin, ceftriaxone, and intravenous immunoglobulin (IVIG). Surgical excision and carbon dioxide laser can also be used. Larger lesions respond to diltiazem, bisphosphonates, probenecid, aluminium hydroxide, and surgical excision or curettage. Patients with small and localized lesions are good candidates for surgical treatment whereas more generalized disease will require medical management. The outcomes for most patients are guarded because the condition has no cure.

Patient history

The purpose of this case study is to describe the surgical treatment of idiopathic ulcerative cutaneous calcinosis or calcinosis cutis of the lower extremity. We present a case of an 85-year-old Scottish female who presented to our service with no significant medical history but with areas of soft tissue ulceration and infection in the right lower leg secondary to ectopic/idiopathic calcium deposition. The underlying cause of her calcium deposition is still under investigation by the medical team. At the time of evaluation, 1 of the nodules on the anterio-medial aspect of the right lower was ulcerated and became infected with unknown aetiology, which lead to cellulitis of this limb. She initially underwent minimal debridement and subsequent near circumferential excision of calcium deposit and skin graft reconstruction. During her second procedure, intra-operative ultrasound scanning was utilised to demonstrate the depth of the calcium deposit and specimen was submitted to pathology. Pathologic examination diagnosed the submitted specimen as cutaneous calcinosis. At recent follow up, the patient was well with improvement in her symptoms in the right leg. The wound remained healed 17 months postoperatively without any issues or complications.

Examination

Patient’s right leg was erythematous, oedematous and tender. Distal pulses were palpable. Sensation was intact and had satisfactory active range of movements of the joint above and below. There were areas of skin breakdown on the right anterior shin and circumferential stony hard skin texture with underlying evident calcium deposits and nodules. There was no history of injury, trauma, or insect bite to the area. The patient reported a fever on the first to second day, minimal chills, and no shivers or sweats. The patient denied nausea, vomiting, and dizziness. The patient reported that the pain was present throughout the day and that it was achy and burning and is 7/10 on the pain scale. The patient stated that the pain is worse on palpation and walking and worsened dependent on the position. No history of similar symptom and no history of vascular disease, smoking, drinking, or drugs were reported by the patient. The patient reported no recent travel, and there were no sick contacts. The patient had no areas of rash or redness, and there was no erythema on any other part of body other than the lower extremities.

Pre-operative considerations

Tests to rule out factors contributing to the accumulation of calcium in soft tissues secondary to disordered calcium homeostasis like end stage renal disease, inflammation, malignancy and genetic conditions were ordered: 1) Complete blood count to rule out for lupus erythematosus and possible malignant neoplasms 2) Urea and Creatinine to rule out chronic kidney failure. 3) Parathyroid hormone and vitamin D level are done to rule out hyperparathyroidism and hypervitaminosis D. 4) Calcium, phosphate, total proteins, albumin, 24 h urine excretion of calcium/inorganic phosphate levels to rule out metastatic calcification. 5) Creatine phosphokinase (CPK), lactate dehydrogenase (LDH), glutamic oxaloacetic transaminase (GOT), glutamic pyruvic transaminase (GPT), and aldolase levels to rule out dermatomyositis. 6) Antinuclear antibodies (ANA), anti-dsDNA, and anti-ENA to rule out lupus and systemic sclerosis. 7) Bicarbonate and arterial pH to rule out milk and alkali syndrome. Other studies included x-ray, skin ultrasound.

Referencer

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