Niveditha Arul1, Abiramy Prabavathy Arumugam2,*, Vijayalakshmi Padmanaban2, Devadevi Narayanan2, and Rajkumar Karuppaiah2
1Rajiv Gandhi Institute of Veterinary Education and Research, Kurumbapet, Puducherry, India
2 Department of Veterinary Medicine, Rajiv Gandhi Institute of Veterinary Education and Research, Kurumbapet, Puducherry, India
Introduction:Skin diseases are the most common problem in dogs. Due to the hot and humid climate, their prevalence is high in Puducherry, India.Case report:In this case report, concurrent infection of scabies and dermatophytosis was observed in a 2-month-old Chippiparai male pup presented to the Veterinary clinicalcomplex,Mettupalayam, Puducherry,India.The clinical signs wereintense scratching, crusty lesions, and an off odor. The temperature was 99.7°F, the heart rate was 85 beats per minute,the respiratory rate was 22 breaths per minute,and the appetite was normal. Regional examination of other organs revealed no abnormality. Ear canal examination did not reveal the presence of any ear mites. Dermatological examination revealed generalized alopecia and pityriasis with positive Pinna pedal reflex. Skin scraping by direct microscopy (10 ×)confirmed the presence of Sarcoptessp. and DermatophyteSp. was confirmed by Lactophenol cotton blue staining technique. The dog underwent a successful treatment that included oral administration of ivermectin at a dosage of 300 μg/kg body weight, twice weekly for 4 weeks. Additionally, the dog received a topical wash with an acaricide solution containing 2% permethrin and 2% miconazole once every 3days for the same 4-week period. The supportive therapywas also provided byadministering a dewormer called pyrantel pamoate at a dosage of 20mg, and providing the dog with 4 drops of an herbal immunostimulant orally.Conclusion:Concurrent infection of scabies and dermatophytes can be managed even in a 2-month-old pup with the above protocol without any toxicity.
Canine scabies is a pruritic skin condition caused by the infestation of Sarcoptes scabiei var canis,which belongs to the family Sarcoptidae1. It is a globose mite with short legs. The mite has four stages in its life cycle –ovum, six-legged larva, eight-legged nymph, and eight-legged adult. The life cycle lasts2-3 weeks. Females penetrate into epidermis to form tunnels into which eggs are laid. As they hatch, larvae and nymph excavate tunnelsand reach the skin surface to mature and mate1. The mites feed on lymph and epidermal cells1. Their burrowing activity causesirritation, itching, inflammation, exudates,coagulations,and crust. Moreover, it leads toexcessive keratinization and proliferation of connective tissue, resulting inthickened and wrinkled skin and alopecia2. Scabies is typically presented with intense scratching,erythema, papule formation followed by scales, crust,and alopecia. The commonaffected sites are ear, muzzle, face, and elbow,which extendover the whole body in severe infestation3. Dermatophytosis is a contagious superficial fungal skin disease of keratinized structures.