Pulmonary paracoccidioidomycosis showing reversed halo sign with nodular/coarse contour

Imaging findings in chikungunya fever

“…Unlike some fungal infections that are quite common in our country, such as paracoccidioidomycosis, which has been the subject of several recent publications in the radiology literature of Brazil ( 3 - 6 ) , very little has been written about the imaging aspects of infections with viruses transmitted by the Aedes mosquito. Imaging methods such as ultrasound and magnetic resonance imaging could play a key role in documenting joint involvement in the acute phase of chikungunya fever, especially in patients who develop chronic arthritis ( 2 ) .…”

Acute paracoccidioidomycosis with duodenal and cutaneous involvement and obstructive jaundice

“…Patients usually seek medical attention between 4 and 12 weeks of illness [7] , [9] . In decreasing order of frequency, the presence of enlarged lymph nodes, digestive symptoms, hepatosplenomegaly, osteo-articular involvement and skin lesions are the main forms of presentation of this systemic mycosis [7] , [9] , [10] , [11] . Skin lesions include papules, papules and crusts, acneiform lesions with papules and pustules.…”

Reversed halo sign in invasive fungal infections

“…Recent studies conducted in Brazil 1 - 3 have stressed the importance of the reversed halo sign (RHS) in the diagnosis of lung diseases in immunocompetent patients. However, the RHS in immunocompromised patients has not received the same emphasis.…”