Annette Fitzgerald Levey

Clinical Pathologist IDEXX, Wetherby, UK

Figure 1. Cutaneous histiocytoma sampled by aspiration without suction (left). The same lesion sampled by impression smear (right).

DIY diagnostics: cytology

The clinical picture: the gross features of any lesion and presenting signs are likely to provide the clinician with a list of differentials. Consideration of your clinical suspicion should help you...