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Spontaneous pneumomediastinum (SPM) and subcutaneous emphysema are rare complications of illicit drug abuse. Thorough history, examination, and investigations are required to rule out fatal complications such as oesophageal perforation. We present a case of a 21-year-old male presenting with pleuritic chest pain one day after cocaine inhalation and ingesting ecstasy. Conservative supportive management is appropriate when this occurs spontaneously without radiological evidence of visceral perforation.

Severe laryngeal trauma is rare in the civilian environment and requires appropriate and timely surgical intervention. We report a case from Sydney, Australia, which was managed with open reduction and internal fixation of the larynx with resorbable plates. The use of resorbable plates for operative fixation of the larynx has rarely been reported in literature but may be a viable alternative.

Introduction. De novo pleomorphic adenomas in the parapharyngeal space are rare and cause difficulties in its surgical management. We report the largest de novo pleomorphic adenoma arising from the parapharyngeal space and discuss its surgical management. Presentation of Case. A 34-year-old male presented with a giant de novo pleomorphic adenoma arising from the parapharyngeal space, which was initially misdiagnosed as an impacted wisdom tooth. Measuring 8.4×6.5×3.9 cm in size and weighing 87.3 g, this is the largest primary salivary gland tumour arising de novo from the parapharyngeal space reported in the literature, presenting challenges in its surgical management. Discussion. Parapharyngeal space tumours cause nonspecific symptoms and may be difficult to diagnose, which can allow the tumours to become very large and cause obstructive and compressive symptoms in an anatomically difficult area. A combined trans-cervical and trans-oral approach can be used to safely perform an en bloc resection. Conclusion. We report the diagnosis and surgical management of the largest pleomorphic adenoma arising de novo from the parapharyngeal space reported in the literature.

This paper describes a case of mental nerve neuralgia following a traumatic dislodgement of a chin implant ten months after surgery. Our case is unusual, both in the specific complication and the patients' atypical representation—delayed and initially without mention of trauma. To the authors' knowledge, this case has not been reported previously in the literature. We review the complications of chin augmentation and the techniques for fixation and discuss implications for the preoperative disclosure with patients.

This paper describes a case of mental nerve neuralgia following a traumatic dislodgement of a chin implant ten months after surgery. Our case is unusual, both in the specific complication and the patients' atypical representation-delayed and initially without mention of trauma. To the authors' knowledge, this case has not been reported previously in the literature. We review the complications of chin augmentation and the techniques for fixation and discuss implications for the preoperative disclosure with patients. [ABSTRACT FROM AUTHOR]