[Differential diagnosis of peripheral lymph node enlargement]

Identifying the cause of swollen lymph nodes remains a clinical challenge. While malignancies like lymphomas are a primary concern, diagnostic approaches vary. Histological analysis is considered the gold standard but requires skilled interpretation. This gap motivated the need for alternative diagnostic strategies. Prior research has shown that cytological methods can yield reliable results in many cases. However, the role of clinical and biochemical assessments in guiding decisions is less clear. No prior work had resolved how often malignancies are actually present in such cases. The uncertainty around diagnostic workflows drove the need for a systematic review of diagnostic practices. This paper's contribution lies in clarifying the frequency of malignancies and the effectiveness of alternative methods.

This study aimed to evaluate the diagnostic accuracy of various methods for identifying causes of swollen lymph nodes. The specific problem addressed is the high rate of unnecessary histological investigations. The motivation stems from the need to reduce diagnostic delays and costs. The authors sought to determine how often malignancies are present in such cases. They also wanted to assess the role of cytological methods compared to histology. The study focused on the proportion of patients requiring invasive procedures. By analyzing clinical and laboratory data, the authors aimed to guide diagnostic decisions. Their goal was to provide evidence for optimizing diagnostic workflows.

The study used a retrospective analysis of clinical and laboratory data from patients with swollen lymph nodes. Patient records were reviewed to assess diagnostic approaches and outcomes. Cytological investigations were compared to histological findings. Blood tests, serum enzymes, and serological markers were analyzed. The proportion of patients undergoing lymph node punctures was calculated. Histological confirmation was used as the reference standard. Clinical findings were integrated with laboratory results to guide diagnoses. The study focused on the frequency of malignant lymphomas and infections.

Among the patients studied, 21.3% underwent histological examination of swollen lymph nodes. Cytological investigations were performed in 41.6% of cases. A definitive diagnosis was made in most cases using cytology alone. Infections were identified in the majority of patients through clinical and biochemical markers. The proportion of malignant lymphomas was 14.3%. Blood tests and serological findings confirmed lymphotropic infections in most cases. Histological confirmation was not always necessary for diagnosis. These findings suggest that cytology can reduce the need for invasive procedures.

The authors concluded that cytological investigations can provide a definitive diagnosis in most cases of swollen lymph nodes. They emphasized the importance of integrating clinical findings with laboratory results. Histological examination should be reserved for cases where cytology is inconclusive. The study highlights the role of cytology in reducing unnecessary procedures. The proportion of malignant lymphomas was found to be relatively low. Clinical and biochemical markers are valuable in diagnosing infections. The findings suggest that diagnostic workflows can be optimized. These conclusions are based on the authors' analysis of patient data.