[What can hide a hydrocele?].

The catheter migration after ventriculoperitoneal shunt (VPS) for hydrocephalus is a very rare complication. It is caused by a disconnection or rupture of the catheter. Then, this one can be exteriorized through the anus or the mouth.

[Hydatid cyst of the trapezius muscle: an unusual location].

Echinococciasis, or hydatid disease, is a broad-based anthropozoonosis common to humans and several mammal species. The disease results from the development of the larval or hydatid form of the canine tenia (Echinococcus granulosis) in the body. Hydatid cysts are uncommonly found in muscles, even in endemic zones.