A radiological sign can sometimes resemble a particular object or pattern and is often highly suggestive of a group of similar pathologies. Awareness of such similarities can shorten the differential diagnosis list. Many such signs have been described for X-ray and computed tomography (CT) images. In this article, we present the most frequently encountered plain film and CT signs in chest imagi...

1. Dipartimento di Radiologia, A.O. dei Colli, Ospedale Monaldi, Napoli, Italia. 2. Dipartimento di Radiologia, Ospedale Bellaria, AUSL Bologna, Bologna, Italia. 3. Dipartimento di Medicina e Chirurgia, Sezione Malattie Apparato Respiratorio, Università di Salerno, Salerno, Italia. 4. Dipartimento di Scienze Biomediche e Neuromotorie, Università di Bologna, Sezione di Anatomia Patologica, M. Ma...

A 79-year-old non-smoker woman was admitted to our hospital following 15 days of unproductive coughing, moderate fever (38°C) and asthenia. She was diagnosed with rheumatoid arthritis five years before; the dia gnosis was made based on the presence of morning stiffness, symmetric joint pain and swelling in fingers, wrists, elbows, and ankles, and a positivity for both rheumatoid factor (1/160) ...

We read with great interest the well-written and informative pictorial essay by Park et al. (1), which reviews the thoracic manifestations of sarcoidosis, classifying them as typical and atypical. They indicate that the less frequent and unusual manifestations may be observed in 25% to 30% of cases, emphasizing the difficulty to differentiate sarcoidosis from other diseases, and the importance ...

PURPOSE We aimed to describe the computed tomography (CT) features of pulmonary mucormycosis including sequential changes between follow-ups. MATERIALS AND METHODS Between June 2001 and May 2011, five patients (three males and two females; median age, 43 years; age range, 13-73 years) who had been pathologically diagnosed with pulmonary mucormycosis constituted our study population. Their cli...