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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Pneumactocele is commnly found in case of-
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The correct answer is  Pneumocystis jirovecii pneumonia can present with progressive dyspnoea,dry cough & fever.Chest X ray shows bilateral interstitial infiltrate spreading out from hilar region.High resolution CT is more sensitive,showing typical 'ground-glass 'interstitial infiltrates.Pneumatocoeles can occur and may rupture,resulting in a pneumothorax.Treatment is with high dose co-trimoxazole,together with adjunctive steroids. Reference:Davidson's Medicine-22nd edition,page no:400.