A patient has progressive septal and palatal destruction. Cocaine use is disclosed, and serology shows atypical high-titre ANCA against multiple neutrophil antigens without renal disease. What is the best interpretation?
Cocaine-related injury can mimic vasculitis clinically and serologically. Toxicology history, disease distribution, biopsy and systemic assessment help distinguish it from granulomatosis with polyangiitis; abstinence is fundamental.
A. Granulomatosis with polyangiitis is proved by any positive ANCA: ANCA patterns are not diagnostic in isolation.
B. Extranodal NK/T-cell lymphoma can be excluded without biopsy: Destructive malignancy remains an important differential.
C. Reconstruction should proceed during ongoing cocaine use: Persistent vasoconstriction makes failure likely.
D. Cocaine or levamisole-associated midline destructive disease is likely: Cocaine-related injury can mimic vasculitis clinically and serologically. Toxicology history, disease distribution, biopsy and systemic assessment help distinguish it from granulomatosis with polyangiitis; abstinence is fundamental.
E. Topical decongestants alone will reverse the defect: Established tissue loss requires cessation and later reconstruction planning.
If renal impairment, pulmonary nodules and biopsy-proven granulomatous vasculitis were present, GPA would be more likely.
Independent Clinora educational preparation material; not official JCIE content, an accredited programme, clinical advice, or a substitute for current guidance, local policy and specialist judgement.
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