Dermatosis Associated with Feeding Low-Quality Food (Generic Food Dermatosis) : A Case Series
Blanco, Alejandro Diego (Universidad de Buenos Aires. Servicio de Dermatología del Hospital Escuela (Argentina))
López, Melissa (Universidad de Buenos Aires)
Kantor, Laura (Ciudad Autónoma de Buenos Aires)
Duchene, Adriana (Universidad de Buenos Aires)
Ferrer i Caubet, Lluís (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals)

Data:	2026
Resum:	Severe crusting dermatosis affecting the mucocutaneous junctions, pressure points, and trunk of dogs fed low-quality dry food was first reported in the United States in the 1980s. Since then, only a few cases have been documented. Twenty-two adult dogs owned by private individuals were evaluated. All dogs exhibited thick crusts forming plaques and marked scaling on the face-particularly around the lips, nasal bridge, and eyelids-as well as on the paw pads, dorsal digits, abdomen, and dorsum. Pruritus ranged from moderate to severe, and all dogs showed varying degrees of lethargy and reduced activity. Each dog was fed a low-quality commercial diet. A presumptive diagnosis of dermatosis associated with poor-quality food was made. Skin biopsies from nine dogs revealed similar histopathologic changes, characterized by epidermal hyperplasia, severe parakeratotic hyperkeratosis with spongiosis, and exocytosis of lymphocytes and neutrophils. The skin lesions resolved within 15-30 days after switching to a high-quality diet. This case series highlights that dermatosis associated with low-quality food should remain in the differential diagnosis for dogs presenting with symmetric crusted and scaly lesions on the face, mucocutaneous junctions, and paws, particularly when nutritional deficiencies are suspected.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Generic food dermatosis ; Nutritional dermatosis ; zinc-deficiency dermatosis
Publicat a:	Veterinary sciences, Vol. 13, Num. 1 (January 2026) , p. 106, ISSN 2306-7381

DOI: 10.3390/vetsci13010106

10 p, 12.8 MB

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