Hydatic disease has always been the most common in countries where large amount of sheep and cattle is raised, but increased travel and immigration have made this condition a serious worldwide public problem. Cyst hydatid may affect all parts of the human body like the heart, the bone marrow, the eye, the brain, the kidney, and the spermatic cord. Humans can become infested by accidentally ingesting the eggs that are passed in the feces from definitive hosts (usually a canid, such as a wolf, fox, or dog). Even in endemic countries, the primitive pleural hydatid cyst is exceptional, and it is very difficult to distinguish from other pleural and parietal cystic masses especially that in majority of cases the immunologic tests are negative. We report two cases of pleural hydatid cyst discovered in two young patients, with a nonspecific clinical presentation. The interest of this paper is to raise the primordial role of imaging in the positive diagnosis of primary pleural hydatid cyst.

Kaposi's Sarcoma (KS) occurs as a pathological entity that may be classified into four different types: classic, endemic, epidemic, and iatrogenic. It can arise among HIV-positive subjects or within immunosuppression, yet exceptionally of tuberculous origin. We describe a new case report of an HIV-negative patient, manifesting Kaposi's disease in the course of tuberculosis, with the aim to assess this uncommon disorder and to outline this rare atypical association.

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