Diagnosis and Treatment > Intervention > Abscess drainage
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Summary
In this case report, we describe a 37-year-old male who presented with fever and tender neck mass. Neck ultrasonography revealed a mixed echogenic multiloculated solid-cystic lesion containing turbid fluid and occupying the right thyroid region. Thyroid function tests showed subclinical hyperthyroidism. The patient was initially diagnosed with thyroid abscess and he was subsequently treated with percutaneous aspiration and i.v. antibiotics; however, his clinical symptoms did not improve. Surgical treatment was then performed and a pathological examination revealed a ruptured epidermoid cyst with abscess formation. No thyroid tissue was identified in the specimen. The patient was discharged uneventfully. However, at the 3-month and 1-year follow-ups, the patient was discovered to have developed subclinical hypothyroidism. Neck ultrasonography revealed a normal thyroid gland. This report demonstrates a rare case of epidermoid cyst abscess in the cervical region, of which initial imaging and abnormal thyroid function tests led to the erroneous diagnosis of thyroid abscess.
Learning points:
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Epidermoid cyst abscess at the cervical region can mimic thyroid abscess.
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Neck ultrasonography cannot distinguish thyroid abscess from epidermoid cyst abscess.
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Thyroid function may be altered due to the adjacent soft tissue inflammation.
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School of Medicine and Dentistry, James Cook University, Cairns, Queensland, Australia
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School of Medicine and Dentistry, James Cook University, Cairns, Queensland, Australia
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School of Medicine and Dentistry, James Cook University, Cairns, Queensland, Australia
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Summary
Diabetes mellitus is a well-recognised risk factor for melioidosis, the disease caused by Burkholderia pseudomallei, which is endemic in northern Australia and Southeast Asia. We present the initial diagnostic dilemma of a febrile patient from northern Australia with type 1 diabetes mellitus and negative blood cultures. After a 6-week history of fevers and undifferentiated abdominal pain, MRI of her spine revealed a psoas abscess. She underwent drainage of the abscess which cultured B. pseudomallei. She completed 6 weeks of intravenous (IV) ceftazidime and oral trimethoprim/sulphamethoxazole (TMP/SMX) followed by a 12-week course of oral TMP/SMX. We postulate that the likely route of infection was inoculation via her skin, the integrity of which was compromised from her insulin pump insertion sites and an underlying dermatological condition.
Learning points:
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Diabetes mellitus is the strongest risk factor for developing melioidosis.
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Atypical infections need to be considered in individuals with diabetes mellitus who are febrile, even if blood cultures are negative.
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There is heterogeneity in the clinical presentation of melioidosis due to variable organ involvement.
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Consider melioidosis in febrile patients who have travelled to northern Australia, Asia and other endemic areas.
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Summary
Our patient had drainage of a large amoebic liver abscess. This got complicated by a severe degree of hypotension, which required aggressive fluid resuscitation and hydrocortisone support. Computerised tomography (CT) of the abdomen revealed bilateral adrenal gland haemorrhage (BAH) resulting in primary adrenal gland failure, which was the cause for hypotension. Patient was on long-term warfarin for provoked deep vein thrombosis of lower limb, which was discontinued before the procedure. Thrombophilia profile indicated the presence of lupus anticoagulant factor with prolonged activated partial thromboplastin time (aPTT). Patient was discharged on lifelong warfarin. This case emphasises the need for strong clinical suspicion for diagnosing BAH, rare but life-threatening condition, and its association with amoebic liver abscess and anti-phospholipid antibody syndrome (APLS).
Learning points
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Recognition of BAH as a rare complication of sepsis.
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APLS can rarely cause BAH.
