Thyroid acropachy - a rare consequence of autoimmune thyroid disease occurring in approximately 1% of patients with Graves’ disease. It can occur in euthyroid, hyperthyroid or hypothyroid patients or even post treatment. The majority of patients are smokers. It produces soft tissue swelling, finger clubbing and periosteal reaction of the extremities.
Hydropneumothorax in a post pneumonectomy patient. Note the perfectly horizontal fluid line due to a true air-fluid interface rather than a fluid meniscus that would be typical of a pleural effusion in the absence of a pneumothorax. Also note the volume loss on the effected side rather than positive mass effect consistent with the lung having been removed.