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Peer-reviewed veterinary case report

Foreign body reaction from ruptured skin cysts in dogs

By Kim, Ha-Jung et al.·Published in Veterinary medicine and science·2021·Department of Veterinary Internal Medicine, South Korea·View original on PubMed

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Original publication title: Foreign body reaction to ruptured follicular cysts in dogs.

Species:
dog
Skin & coatDogs

Plain-English summary

A 3-year-old neutered male Samoyed and a 5-year-old neutered female Maltese were brought in with painful, ulcerated masses on their skin caused by ruptured follicular cysts. The Samoyed had multiple nodules on his forelimbs, while the Maltese had lesions around her jaw. After testing, the vets found that both dogs had severe skin reactions due to these cysts. Treatment included oral steroids and cyclosporine, which significantly improved the skin issues within two weeks, along with surgery to remove any remaining cysts.

People also search for: dog skin lumps treatment · Samoyed cysts · Maltese skin infection · dog follicular cysts · dog skin ulcer treatment

Abstract

BACKGROUND: Cutaneous cysts are common in dogs, and surgical resection is the recommended treatment. However, additional therapy may be required for ruptured follicular cysts with severe cutaneous complications. CASE PRESENTATION: A 3-year-old neutered male Samoyed was presented with multifocal masses on the forelimbs. A 5-year-old neutered female Maltese was also presented with multiple masses and ruptured lesions, which were ulcerative and painful, around the parotid and submandibular glands. The lesions were examined cytologically. In addition, bacterial and fungal cultures and histopathologic examination were performed. Cutaneous multifocal nodules in the Samoyed could not be diagnosed via cytological examination or bacterial/fungal culture. Histopathology revealed numerous follicular cysts with multiple pyogranulomas of various sizes, some of which contained central keratin debris. In the Maltese, cytologic examination revealed central keratins or enucleated ghost cells in the intact cysts and few keratinized squamous cells mixed with neutrophils, mucus and metachromatic cells in the ruptured cysts. Histopathologic examination revealed severely dilated follicular cysts. Oral steroid and cyclosporine therapy resulted in marked improvement in the aseptic pyogranulomas after 2 weeks in formal case and combined with a surgery for residual cysts in latter case. CONCLUSIONS: We have reported two canine cases of ruptured follicular cysts causing foreign body-like aseptic pyogranulomas around cutaneous tissues and their successful management with pharmacological therapy and surgery.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34021736/