Persistent nasal ulceration in a young woman presents a diagnostic challenge that cuts across immunology, infectious disease, and oncology — a reminder of how overlapping pathologies can delay accurate diagnosis and appropriate treatment. This NEJM case report from the July 2026 issue walks through the clinical reasoning required when a seemingly localized nasal lesion resists straightforward explanation.
The case centers on a 37-year-old woman whose nasal ulceration persisted despite initial management, prompting an in-depth differential diagnosis workup. The clinical discussion, characteristic of NEJM's case records format, evaluates competing diagnoses including granulomatous conditions such as granulomatosis with polyangiitis (GPA), infectious etiologies including fungal or mycobacterial causes, and potentially malignant or lymphomatous processes such as NK/T-cell lymphoma — all of which can present with destructive nasal lesions. The case likely examines laboratory markers, biopsy histopathology, imaging, and serological data to reach a definitive conclusion, though the precise confirmed diagnosis is not disclosed in the excerpt.
From a broader clinical perspective, destructive nasal lesions occupy a notoriously difficult diagnostic space. Granulomatosis with polyangiitis, cocaine-induced midline destructive lesions, extranodal NK/T-cell lymphoma, and endemic fungal infections like histoplasmosis or mucormycosis can all produce remarkably similar presentations, making tissue biopsy and immunohistochemistry essential. This case is particularly instructive because the patient's age — 37 — sits in a window where autoimmune and lymphoproliferative diseases compete in likelihood with infectious causes. The NEJM case record format is inherently educational rather than a novel research finding, meaning its value lies in clinical reasoning modeling rather than new epidemiological or mechanistic data. For clinicians and medically sophisticated readers, this case reinforces the importance of systematic differential diagnosis over anchoring bias when a common-seeming complaint fails to resolve predictably.