Efficacy of Computerized Tomography-Guided Core Biopsy in Identifying the Subtypes of Lung Adenocarcinoma: An Observational Perspective From Pakistan

Background Lung carcinoma is a leading cause of death worldwide. Histological subtype of lung adenocarcinoma is an important indicator of patient's outcome as it is helpful in surgical planning and guidance of prognosis. Objective To determine the diagnostic efficacy of computerized tomography-guided core needle biopsy (CNB) in identifying the histopathological subtype of lung adenocarcinoma. Methods and materials This is a retrospective, descriptive study including clinical data of 73 patients irrespective of their age and gender, who underwent computerized tomography-guided CNB for lung masses at the Department of Pathology, Aznostics - the Diagnostic Centre, Lahore, Pakistan from January 01, 2019 to June 30, 2023. Data collected was analyzed via Google Form (Google Inc., Mountainview, CA) and Statistical Package for Social Sciences (IBM SPSS Statistics for Windows, Version 24, released 2016; IBM Corp., Armonk, New York, United States) and was sent to statistician for descriptive analysis. Categorical data was used for calculating frequency and percentage, while continuous data was computed as mean and standard deviation. Results Seventy-three patients with adenocarcinoma underwent pulmonary biopsy. The mean age of included patients was 64.88 ± 11.39 year with a male predominance of 61.64%. Upper lobe was commonly affected by adenocarcinoma lung in 57.53% patients and 58.90% cases involved the right lung. The most common subtype was acinar with 51.65% followed by solid with 17.58% cases. Computerized tomography-guided CNB showed a diagnostic yield of 75.34% and identified histological subtypes of lung adenocarcinoma in 55 cases. Conclusion Computerized tomography-guided CNB is a useful, yet minimally invasive diagnostic tool to identify the histological subtype of lung adenocarcinoma. It not only helps in planning the surgical and adjuvant management of the patients, but also guides the patient-prognosis.

Rheumatoid Arthritis With Multiple Lung Nodules: A Case Report

Rheumatoid arthritis (RA) is an inflammatory multisystemic disease characterized by erosive arthritis with many extra-articular manifestations. Pleuropulmonary manifestations are frequently seen in patients with RA. Risk factors include male gender, severe erosive arthritis, high titers of rheumatoid factor, subcutaneous nodules, smoking, genetic predisposition, and the presence of other extra-articular manifestations of RA. We report a patient known to have RA presenting with multiple lung nodules. A 35-year-old female patient, known to have seropositive RA, was diagnosed 10 years ago. She was on oral corticosteroids (OCS) 5 mg daily, Upadacitinib 15 mg daily, and methotrexate (MTX) 20 mg weekly. The patient was referred for pulmonary medicine evaluation because of the finding of multiple lung nodules on chest imaging. A routine chest X-ray conducted as a part of the general evaluation showed a nodular opacity in the right lower lobe. Subsequently, a high-resolution CT (HRCT) scan of the chest was carried out and showed multiple pulmonary nodules. At the time of evaluation, she had no active respiratory symptoms with no signs of respiratory distress. As she was an active smoker, the decision was to proceed with a CT-guided biopsy besides full clinical, hematological, biochemical, and microbiological evaluations. The histopathological findings suggested a rheumatoid nodule with no evidence of malignant or infectious causes. No specific therapy was added at the time being, and the patient was monitored with regular follow-ups. Differentiation of rheumatoid lung nodules from other causes, such as malignancy and infectious causes, is essential. A biopsy with histopathological evaluation is a must in those with a high likelihood of malignancy, such as smokers. In addition to that, comprehensive clinical, hematological, microbiological, and radiological evaluations are required. Rheumatoid lung nodules are usually asymptomatic, with no specific therapy needed apart from the general management of RA with glucocorticoid, immunosuppressive, and biologic therapies.

Primary Bone Lymphoma of the Shaft of the Tibia, Mimicking Subacute Osteomyelitis

We present the case of a 32-year-old healthy male who presented with a three-month history of insidious onset pain and swelling over the right tibia. Initial radiographs and imaging pointed to a diagnosis of subacute osteomyelitis, as there was no cortical destruction, periosteal reaction, or soft tissue involvement. The patient underwent surgery for osteomyelitis. However, the histopathology and immunohistochemistry (IHC) findings pointed to a possible B-cell lymphoma diagnosis. The patient was referred to a tertiary-level oncology centre, where a repeat biopsy and positron emission tomography (PET) scan confirmed a diagnosis of primary bone lymphoma (PBL). Treatment was initiated immediately in the form of a combination of chemotherapy and radiotherapy, and the progress was followed up with further scans at four-month intervals. The patient achieved remission nine months after the initiation of treatment.

The Diagnosis and Management of Pediatric Spine Infections

The management of pediatric spine infections requires a multidisciplinary approach that includes orthopedic surgeons, infectious disease specialists, interventional radiologists, and others. The prevalence of the disease has increased in frequency, virulence, and degree of soft tissue involvement over the past several years; there has also been a resurgence of some types of infections, such as tuberculosis, fungal, and viral pathogens. The diagnosis can often be reached with a detailed history, physical examination, laboratory tests, and imaging studies. Pathologies mimicking infection require a more invasive approach for diagnosis, including core or open biopsy. The treatment of discitis, spondylodiscitis, vertebral osteomyelitis, spinal epidural, and intramedullary abscesses in children is at times complex, and although many infections can be treated non-surgically with antibiotic therapy, some more extensive infections require surgical management. A timely diagnosis is important as it allows the initiation of the appropriate antimicrobial therapy and would decrease the complexity of the subsequent surgical intervention.