Review and Classification Update: Unilateral condylar hyperplasia

Unilateral condylar hyperplasia is characterised by slow progressive growth of the different parts of mandible, the aetiology of which is still unclear. It is a self-limiting condition mostly seen between the age of 11–30 years causing facial asymmetry and its progression ceases after a certain time. In literature until now very few cases have been reported and every case that is being reported adds to its features or the aetiology. Previously, it has been classified into two types that is, hemimandibular hyperplasia and hemimandibular elongation. Here, we report a similar case with a few features distinct from those reported earlier.

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Paraduodenal inflammatory pseudotumor masquerading as malignancy

A 30-year-old woman presented with severe abdominal pain and abdominal distension. CT demonstrated two intra-abdominal masses, one involving the left lateral segment of the liver and the other adjacent to the duodenum. Initial biopsies were consistent with focal nodular hyperplasia of the liver and non-specific lymphocytic infiltrate in the paraduodenal mass. Due to persistent symptoms, the patient underwent laparoscopic resection of the paraduodenal mass. Final pathology was consistent with an inflammatory pseudotumour and the patient's symptoms subsequently resolved.

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Transcervical excision of a giant mediastinal parathyroid adenoma

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Prolonged neonatal hyperbilirubinaemia in a case of congenital hypopituitarism

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One month of nitrous oxide abuse causing acute vitamin B 12 deficiency with severe neuropsychiatric symptoms

A 21-year-old university student studying abroad in the USA presented to the emergency department with double vision, lower extremity weakness with difficulty ambulating and other neuropsychiatric symptoms. MRI of the brain and spinal cord were normal. Vitamin B₁₂ was 78 pg/mL (58 pmol/L, reference 211–911 pg/mL). The patient had been using nitrous oxide capsules used for whipped cream recharging, which she obtained from other students, a few times daily for a month for the purpose of anxiety relief. The patient was not a vegan or vegetarian. The patient was treated with intramuscular vitamin B₁₂ repletion with partial resolution of neurologic symptoms and discharged on vitamin B₁₂ supplementation.

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Lipoma arborescens: a rare cause of clicking in the knee

Lipoma arborescens (LA) is a rare condition with synovial membrane lipomatous proliferation. It most commonly affects the knee joint, in the suprapatellar pouch. It can present as a painful knee with an effusion. Diagnosis is via MRI demonstrating a synovial mass with frond-like appearance, and histology showing mature adipose cells, with an overlying synovial membrane. Treatment options include non-operative measures with analgesia, or operative intervention to resect the lesion. We describe a unique case of LA present in the anterolateral knee joint, presenting with persistent painful clicking in the knee. The patient underwent an open total resection of the lesion, with resolution of symptoms.

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Endocarditis following IUD insertion in a patient with tetralogy of Fallot

The role of antibiotic prophylaxis for prevention of infective endocarditis is unknown. Endocarditis prophylaxis is recommended for certain high-risk individuals prior to dental procedures. To our knowledge, this is the first case reported in the literature of a patient with complex congenital heart disease developing endocarditis in the period immediately following otherwise uncomplicated intrauterine device insertion.

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