Interstitial granulomatous dermatitis with arthritis (IGDA) or Ackerman dermatitis syndrome is a skin condition that most commonly presents with symmetrical round-to-oval red or violet plaques on the flanks, armpits, inner thighs, and lower abdomen.[1]
Interstitial granulomatous dermatitis with arthritis commonly presents with symmetrical round-to-oval red or violet plaques on the flanks, armpits, inner thighs, and lower abdomen.[1] The arthritis that coexists with these skin lesions may develop years, months, or even years before the cutaneous lesions first manifest. The symmetrical nature of the joint involvement is evident, frequently affecting the fingers, elbows, wrists, and shoulders.[2]
This entity has a unique histopathology that is characterized by a diffuse, dense inflammatory infiltrate that is primarily made up of histiocytes within the reticular dermis. Palisades are formed by small foci of histiocytes and degenerated collagen. Neutrophils and eosinophils may be found in the infiltrate in addition to other things. Vasculitis and mucin deposition are not anticipated.[2]
^ abLong, David; Thiboutot, Diane M; Majeski, Joseph T; Vasily, David B; Helm, Klaus F (1996). "Interstitial granulomatous dermatitis with arthritis". Journal of the American Academy of Dermatology. 34 (6). Elsevier BV: 957–961. doi:10.1016/s0190-9622(96)90272-8. ISSN0190-9622. PMID8647988.
^Worsnop, F. S.; Ostlere, L. (March 27, 2013). "Interstitial granulomatous dermatitis with arthritis presenting with the rope sign". Clinical and Experimental Dermatology. 38 (5). Oxford University Press (OUP): 564–565. doi:10.1111/ced.12052. ISSN0307-6938. PMID23531209. S2CID28851504.
^Antunes, Joana; Pacheco, David; Travassos, Ana Rita; Soares-Almeida, Luís Miguel; Filipe, Paulo; Sacramento-Marques, Manuel (2012). "Autoimmune thyroiditis presenting as interstitial granulomatous dermatitis". Anais Brasileiros de Dermatologia. 87 (5). FapUNIFESP (SciELO): 748–751. doi:10.1590/s0365-05962012000500013. ISSN0365-0596. PMID23044569.
^Verneuil, Laurence; Dompmartin, Anne; Comoz, François; Pasquier, Corinne Jeanne; Leroy, Dominique (2001). "Interstitial granulomatous dermatitis with cutaneous cords and arthritis: A disorder associated with autoantibodies". Journal of the American Academy of Dermatology. 45 (2). Elsevier BV: 286–291. doi:10.1067/mjd.2001.114577. ISSN0190-9622. PMID11464193.
Schanz, Stefan (January 1, 2012). "Interstitial Granulomatous Dermatitis With Arthritis Responding to Tocilizumab". Archives of Dermatology. 148 (1). American Medical Association (AMA): 17–20. doi:10.1001/archdermatol.2011.341. ISSN0003-987X. PMID22250229.