This mnemonic has been commonly used to recall the differential diagnosis of a cardiophrenic angle mass: Fat PAD F – Fat P – Pericardial Cyst A – Adenopathy (lymph nodes), Aneurysm D – Diaphragmatic hernia See a Bochdalek Hernia here.
This mnemonic has been used commonly to recall the five most common anterior mediastinal masses: 5 T’s 1. T – Thymus – Thymoma 2. T – Thyroid – Ectopic Thyroid masses 3. T – Thoracic Aorta – Dilated or anuerysm of the ascending aorta 4. T – Terrible lymphoma 5. T – Teratoma and germ … Continue reading
History: 60 year old male with cough. A lung mass is a focal opacity that measures greater than 3 cm. If it measures less than 3 cm and is the only lesion, it is classified as a solitary pulmonary nodule. Read this post for the differential diagnosis for a solitary pulmonary nodule. The differential diagnosis … Continue reading
History: 65 year old male with chronic lymphocytic leukemia presents with cough and left sided chest pain. The differential for cavitating lung mass is wide, including neoplasms such as non-small cell lung cancer (NSCLC), lung metastases, lung abscess, mycobacterial pneumonia, fungal pneumonia, and septic pulmonary emboli. This patient underwent bronchoscopy which turned out to be … Continue reading
History: 50 year old woman presenting for screening mammogram. This is a case of a breast lipoma. This is a benign tumor of the breast composed of mature adipose (fat) cells. They can be present in the breast, axilla, chest wall, or subcutaneous tissues, and typically appear circumscribed, oval or round. If they necrose, they … Continue reading
History: 3 year old male with palpable left sided abdominal mass Wilms’ tumor is the most common renal malignancy and solid abdominal malignancy of childhood. The median age of patients affected by Wilms’ tumor is 3 years old. Usually Wilms’ tumor presents as a large abdominal mass, and 10% of cases are bilateral. Wilms’ tumor … Continue reading
At the core of diagnostic radiology is the differential diagnosis. This is the set of various diagnoses that may explain certain findings on a particular radiology exam, whether it is a mass seen on ultrasound, an opacity on a chest radiograph, or abnormal signal characteristics on an MRI. I recently came across the quote above … Continue reading
History: Middle aged man with a history of smoking, cough, and chest pain. This is a case of Lung Cancer with a metastasis to the contralateral ribs. Any spiculated lung mass in a patient with a history of smoking should be considered lung cancer until proven otherwise. Read this article here regarding the differential diagnosis … Continue reading
History: middle aged female with cough. This is a nice example of right upper lobe collapse and the classic Golden S sign, which is the elevated minor fissure convex inferiorly on the proximal/medial portion and concave inferiorly on the distal or lateral portion. This sign is classically seen with post-obstructive atelectasis due to a central … Continue reading
History: Male with chest pain. This is the classic location and appearance of a pericardial cyst, which is an outpouching of the parietal pericardium that collects simple fluid. Pericardial cysts represent 6% of mediastinal masses. See the differential diagnosis of caridophrenic angle masses here.