Related Experiment Video
Updated: Aug 22, 2026

Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis
Published on: December 15, 2011
Granulomatous contact dermatitis due to gold earrings
D K Armstrong1, M Y Walsh, J F Dawson
1Department of Dermatology, Belfast City Hospital, Northern Ireland.
Abstract:
A young female developed persistent nodules at sites of ear piercing with gold earrings and patch testing demonstrated a positive allergic response to gold sodium thiosulphate. Histological examination of the nodules demonstrated a prominent sarcoidal-type granulomatous tissue reaction. This is in contrast to previous reports of lymphocytoma cutis type histology and was associated with the occurrence of epithelioid granulomata at the site of a strongly positive and long-lasting patch-test reaction.
Related Concept Videos
Immunogold Electron Microscopy
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Sexually Transmitted Infections
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions
Staphylococcal Skin Infections
Cryptococcal Meningitis

