In a 7 months old, male, friesian calf a blackish discolouration area was observed in the connective tissue of the caudal cervical region. The lesion was unilateral and the preescapular lymph node was slightly increased in size.

Histologically an accumulation of amorphous, acellular and eosinophilic material was observed surrounded by a fibrous reaction and abundant macrophages loaded with intracytoplasmic granules of brown pigment. The lymph node histological appearance was normal. This lesios is compatible with a foreign body granuloma, probably resulting from the percutaneous administration of a pharmacological product, most likely oily in nature.

The lesion of blackish coloration, was located in the  caudal cervical region close to the preescapular  lymph node.

The lesion of blackish coloration, was located in the caudal cervical region close to the preescapular lymph node.

Appearance of the lesion in the connective tissue.

Appearance of the lesion in the connective tissue.

Closer look at the blackish material. Mild hyperplasia of the preescapular lymph node

Closer look at the blackish material. Mild hyperplasia of the preescapular lymph node