Myiasis pathology

Introduction

Myiasis is infestation by the larvae (maggots) of fly species within the arthropod order Diptera (the adult flies are two-winged).

Histology of myiasis

In myiasis, the histopathology shows the larva of the fly in the dermis or subcutis. There is a surrounding infiltrate (figures 1–3).

Figure 1

Figure 2

Figure 3

None are generally needed.

Differential diagnosis for myiasis

Other conditions that should be considered include:

• Ticks — these have legs and mouth
• Tunga penetrans — look for a flea with legs; this almost always involves the feet.