Neumonitis en paciente anciana con glomerulonefritis ANCA positivo durante el tratamiento con ciclofosfamida

She was initially treated with empirical antibiotics without achieving clinical or radiological changes. After ruling out an infectious cause, activity of the underlying disease, and other causes of fibrosis, treatment with cyclophosphamide was stopped. Following this, there was an immediate improvement of her clinical and radiological states. The administration of cyclophosphamide was considered directly related to the cause of her symptoms.