Educational Case Educational Case: Asthma: Clinical Features and Morphologic Findings Maria Kamal, MD 1 , Mariam Ghafoor, MD 1 , Urooba Nadeem, MD 1 , and Aliya N. Husain, MD 1 The following fictional case is intended as a learning tool within the Pathology Competencies for Medical Education (PCME), a set of national standards for teaching pathology. These are divided into three basic competencies: Disease Mechanisms and Processes, Organ System Pathology, and Diagnostic Medicine and Therapeutic Pathology. For additional information, and a full list of learning objectives for all three competencies, see http://journals.sagepub.com/doi/10.1177/2374289517715040. 1 Keywords pathology competencies, organ system pathology, respiratory system, obstructive diseases of the lung, asthma, clinicopathology, bronchoconstriction Received September 30, 2019. Received revised February 14, 2020. Accepted for publication February 22, 2020. Primary Objective Objective: RS4.4: Asthma. Compare and contrast the clinico- pathological features and causes of asthma and describe the morphologic changes and consequences that result in airflow obstruction. Competency 2: Organ System Pathology; Topic: Respiratory System (RS); Learning Goal 4: Obstructive Diseases of the Lung. Patient Presentation A 13-year-old male presents to the emergency department with acute onset of breathlessness. He has had recurrent, episodic attacks of wheezing, cough, dyspnea, itchy red eyes, nasal dis- charge, stuffiness, and occasional chest tightness for past 2 years. Initially, his symptoms were relieved by short-acting b-blocker, albuterol. However, the frequency and the severity of the symp- toms have increased for the past 1 month with the patient waking up with these symptoms. He has a history of eczema. His family history is significant for asthma in his mother. Diagnostic Findings Physical examination reveals respiratory rate of 22/min and diffuse wheezing all over the lung fields. Pulmonary function test (PFT) shows FEV1/FVC (forced expiratory volume at 1 second [FEV1]/forced ventilatory capacity [FVC]) of 0.65. Forced expiratory volume at 1 second is 60% of predictive and post-bronchodilator therapy the FEV1 increases to 74% of pre- dictive. Chest X-ray is normal. Question/Discussion Points What Is the Diagnosis Based on Clinical Findings and Pulmonary Function Test? Clinical presentation (recurrent, episodic attacks of wheezing, cough, dyspnea, itchy red eyes, nasal discharge, stuffiness, and chest tightness), and PFT findings (FEV1/FVC of 0.65, FEV1 is 60% of predictive and post-bronchodilator therapy the FEV1 increases to 74% of predictive) are consistent with the diagno- sis of asthma. Diagnosis of asthma can be confirmed if the 1 Department of Pathology, The University of Chicago, IL, USA Corresponding Author: Maria Kamal, MD, Department of Pathology, The University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA. Email: [email protected] Academic Pathology: Volume 7 DOI: 10.1177/2374289520921533 journals.sagepub.com/home/apc ª The Author(s) 2020 Creative Commons Non Commercial No Derivs CC BY-NC-ND: This article is distributed under the terms of the Creative Commons Attribution- NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
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