True or False: All patients presented for dermatologic problems have an underlying systemic illness.

The statement that all patients presented for dermatologic problems have an underlying systemic illness is false. Dermatologic issues can arise from a variety of causes that are not necessarily linked to systemic illnesses. For instance, skin problems can be due to localized infections, parasites, allergies, or even environmental factors. While some dermatologic conditions may indeed indicate underlying systemic health issues, many cases can be entirely isolated to the skin and its appendages without any systemic involvement. Thus, stating that all patients with dermatologic problems have a systemic illness overgeneralizes the complexities of dermatological diagnoses. This understanding is crucial for veterinary professionals to ensure they consider all possible causes when assessing and diagnosing skin issues in animals.