What disease is indicated by dysphagia to solids and liquids along with thick/thin blood smears revealing motile parasites?

The symptoms of dysphagia to solids and liquids, combined with the presence of motile parasites in blood smears, are indicative of Chagas disease. This disease is caused by the protozoan parasite Trypanosoma cruzi, which is transmitted to humans through the bite of infected triatomine bugs.

In the chronic phase of Chagas disease, the motor impairment of the esophagus can lead to difficulties in swallowing both solids and liquids. This condition, known as achalasia, results from the destruction of the neurons in the esophagus due to the parasite. The observation of motile parasites in blood smears further supports this diagnosis, as the detection of Trypanosoma cruzi in blood can confirm the disease.

Other diseases listed, like leishmaniasis, schistosomiasis, and filariasis, do not typically present with the specific combination of dysphagia and motile parasites in blood. Leishmaniasis is primarily associated with skin lesions and visceral symptoms but not dysphagia. Schistosomiasis is characterized by a variety of features depending on the species but is more related to gastrointestinal or urinary symptoms, without the specific swallowing issues seen in Chagas. Filariasis usually causes lymp