A 40-year-old man presents to the clinic with worsening shortness of breath and a persistent dry cough for the past several months. He reports significant fatigue and mild chest discomfort, particularly on the left side. He denies fever, hemoptysis, or night sweats. His medical history is significant for Hodgkin's Disease, which was treated 15 years ago with chemotherapy and radiation therapy to the left hilar region. He has no history of smoking, and there is no family history of pulmonary disease. Physical examination: Vital signs: Temperature 98.6°F Blood pressure 125/80 mm Hg Pulse 95/min Respiratory rate 22/min Oxygen saturation 92% on room air Auscultation: Decreased breath sounds and a dull percussion note over the left hemithorax, with inspiratory crackles noted in the left lung base. No jugular venous distension or peripheral edema is observed. Laboratory findings include: Arterial Blood Gas (ABG) on room air: pH 7.43 PaCO2 37 mm Hg PaO2 68 mm Hg Complete Blood Count: Hemoglobin 14.0 g/dL White blood cell count 6,800/mm³ Pulmonary Function Tests: Reduced forced vital capacity (FVC) Reduced total lung capacity (TLC) Reduced diffusing capacity of the lungs for carbon monoxide (DLCO) A chest x-ray is attached. Which of the following is the most likely diagnosis? A) Radiation-Induced Pulmonary Fibrosis B) Idiopathic Pulmonary Fibrosis C) Pulmonary Embolism Please like, follow, share, repost, and comment if you like my content. I try my best to respond to every comment personally. If you want to see all of my future posts, hit the bell icon next to my profile.
A. Anyway even if there is a clear localized upper left lung fibrosis, there is also an inflammation pattern affecting the basal right pulmonary lobe
History, clinical findings and imaging consistent with radiation induced pulmonary fibrosis . So the best answer is A .
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Diabetologist Expert in the Management of Cardiovascular Complications in patients with Type 2 Diabetes
3moThe patient’s history of Hodgkin’s Disease treated with radiation therapy to the left hilar region, coupled with current symptoms of shortness of breath, fatigue, and chest discomfort, and findings such as reduced lung volumes and capacities on pulmonary function tests, strongly point to Radiation-Induced Pulmonary Fibrosis (A) as the most likely diagnosis. This is supported by the chest X-ray image showing changes consistent with this condition, particularly in the region known to have received radiation. Idiopathic Pulmonary Fibrosis (B) and Pulmonary Embolism (C) are less likely given the specific history of radiation exposure and the absence of factors commonly associated with these conditions, such as smoking or symptoms indicative of a thromboembolic event.