Which of the following is an incorrect match between symptoms and disease?

The association between myalgias and trichuriasis is not supported by the typical symptomatology of the disease. Trichuriasis, caused by the whipworm Trichuris trichiura, primarily presents with gastrointestinal symptoms such as abdominal pain, diarrhea, and potentially rectal prolapse in cases of heavy infection. While patients might experience discomfort due to the gastrointestinal effects, myalgias, or muscle pain, are not recognized as a primary symptom associated with this infection.

In contrast, the other options accurately describe well-established symptom-disease relationships. Dysentery is a hallmark symptom of amebiasis, which is caused by the Entamoeba histolytica parasite and is characterized by severe diarrhea with blood and mucus. Malabsorption syndrome is indeed linked to giardiasis, where Giardia lamblia disrupts intestinal absorption, leading to weight loss, diarrhea, and nutritional deficiencies. Chronic Chagas disease commonly features cardiac involvement due to the destruction of heart tissue by the Trypanosoma cruzi parasite, resulting in various cardiac issues, including arrhythmias and cardiomyopathy. These alignments represent distinct pathophysiological mechanisms that associate them unequivocally with their respective diseases.