False-Negative PET/CT scan with Metastatic Sebaceous Carcinoma: An Important Diagnostic Consideration.

Positron emission tomography (PET) has gained widespread acceptance as a valuable diagnostic tool for cancer. It is rare for a PET/CT scan to overlook the presence of metastatic disease. Sebaceous carcinoma is an uncommon malignant tumour that typically originates in the skin of the eyelid. In this case report, we present a unique case involving a metastatic sebaceous carcinoma that was not initially detected by a PET/CT scan in an 88-year-old female. Therefore, clinicians must maintain a heightened awareness of sebaceous carcinoma and exercise caution when making decisions solely based on PET scan results. It is crucial to recognise this potential limitation of PET scans in sebaceous carcinoma and consider further diagnostic approaches to ensure timely and accurate detection of sebaceous carcinoma. LEARNING POINTS: PET scans may miss slow-growing tumours such as sebaceous carcinoma.A high index of suspicion for sebaceous carcinoma is crucial, even with negative PET scans. Additional diagnostic approaches might be necessary for accurate detection.Sebaceous carcinoma is a rare but aggressive cancer. Diagnosis can be challenging due to its varied presentations.

Life-Threatening Airway Obstruction and Septic Shock Due to Submandibular Space Infection: A Case Report.

Submandibular space infection, a rare and aggressive form of cellulitis, affects the floor of the mouth and neck, potentially leading to life-threatening complications. Although commonly associated with oral trauma and contiguous abscesses, the severity of these odontogenic infections often escalates due to underlying comorbidities. This report presents a unique case of a 74-year-old man who developed severe complications following an outpatient oral procedure. The patient exhibited fever and mouth swelling within a short time, which quickly advanced to impending airway compromise and septic shock. Diagnostic imaging revealed extensive swelling from the left submandibular region extending to the anterior neck and parapharyngeal space, effacing the airway. This necessitated immediate nasotracheal intubation and mechanical ventilation. Medical management comprised emergent antibiotic administration, airway protection, and admittance to the intensive care unit. This case underscores the potential severity of complications arising from an odontogenic infection in the presence of multiple comorbidities following an oral procedure. It emphasizes the need for prompt symptom recognition, emergency airway management, and the initiation of antibiotic therapy. Furthermore, this case illustrates the critical role of various imaging modalities and the choice of intubation technique in patients with an anticipated difficult airway. Despite the severity of submandibular space infection, a timely, effective, and multidisciplinary approach can mitigate fatal outcomes and improve patient prognosis.

Mediastinal Bronchogenic Cyst With Superior Vena Cava Syndrome: A Case Report.

Bronchogenic cysts are rare in adults and often remain undetected until discovered incidentally on imaging or during a symptomatic investigation. The possibility of superior vena cava (SVC) compression due to a bronchogenic cyst arises in complex patient presentations. SVC syndrome poses several unique challenges due to the wide range of clinical symptoms and difficulty identifying the cause when symptoms first manifest. This case report examines a 39-year-old male who presented with symptoms resulting from SVC compression caused by a bronchogenic cyst, leading to SVC syndrome. We discuss the various imaging modalities used to assess the severity of the obstruction and the surgical interventions employed to alleviate the symptoms. A surgical intervention provides symptomatic relief and promises an excellent prognosis when performed without complications.