Skin 2

• What is the common name and affected population for Superficial Pustular Dermatitis?

  • Also called Impetigo
  • Most common in young animals
• What causes Canine Pyotraumatic Dermatitis, and which animals are predisposed?

  • Caused by self-trauma (often from allergies)
  • Predominantly seen in hot weather and animals with dense coats
• What causes Dermatophilosis, and what is its characteristic appearance in histology?

  • Caused by Dermatophilus congolensis
  • Characteristic "train-track" appearance of bacteria in histology
• What is the pathogen responsible for Exudative Epidermatitis in pigs, and where is it commonly seen?

  • Caused by Staphylococcus hyicus
  • Seen in poor hygiene conditions in piggeries
• What organism causes Fleece Rot in sheep, and what is the primary contributing factor?

  • Caused by Pseudomonas aeruginosa
  • Contributing factor is moisture trapped in long fleece
• What environmental factor predisposes horses to Equine Pastern Dermatitis?

  • Chronic damp housing leading to bacterial infection of the pastern and heel
• What causes Staphylococcal Folliculitis and Furunculosis, and which breed is predisposed?

  • Caused by Staphylococcus infection of hair follicles
  • German Shepherds are predisposed due to immune deficiency (IgA)
• How does a cat bite abscess form, and what are the consequences?

  • Oral bacteria from cat bite deposited into dermis
  • Causes abscess formation, potentially leading to lymphadenitis
• What is the most common cause of Mycobacterial infection in cats, and what is the prognosis?

  • Feline Leprosy (due to mouse bites)
  • Infection is difficult to eradicate and often recurs after excision
• What is the cause of Botryomycosis, and what is its characteristic appearance?

  • Caused by Staphylococcal infection
  • Characterized by sulphur granules (bacteria surrounded by antibodies)
• Which animals are commonly affected by Avian Pox, and what is the characteristic lesion?

  • Affects birds (e.g., pigeons, turkeys, bullfinches)
  • Lesions are proliferative, crusting, and ulcerative
• What is the causative agent of Lumpy Skin Disease, and is it zoonotic?

  • Caused by Capripoxvirus
  • It is zoonotic and affects cattle
• What is another name for Contagious Ecthyma, and how is it transmitted?

  • Also known as Scabby Mouth
  • Transmitted through abrasions caused by rough herbage
• Where do Bovine Fibropapillomas typically develop, and what other species can be affected by papillomavirus?

  • Commonly on the penis and vulva of cattle
  • Also causes oral papillomatosis in dogs and sarcoids in horses
• What is the most common fungal cause of Dermatophytosis in dogs, and what is its primary clinical sign?

  • Caused by Microsporum canis
  • Main clinical sign is alopecia and crusting
• What is the primary complaint in dogs with Malassezia dermatitis, and which areas are typically affected?

  • Odor is the primary complaint
  • Commonly affects the ventrum, periauricular area, and feet
• What is the primary cause of Demodicosis in dogs, and what breed is often predisposed?

  • Caused by Demodex canis, a normal resident of hair follicles
  • More common in young animals and immune-suppressed dogs
• How does Sarcoptic Mange spread, and which animals are most affected?

  • Spread by direct contact, highly contagious
  • Affects dogs, foxes, and humans (zoonotic)
• Which skin issue do fleas commonly cause in cats and dogs?

  • Fleas are a common cause of allergic dermatitis in both cats and dogs
  • Often affecting the dorsolumbar region and base of the tail
• What areas of the body do Chorioptic Mites infect, and what is the result?

  • Chorioptic mites affect the lower limbs, scrotum, perineum, and udder
  • Causing crusting and thickening of the skin
• Which species are affected by fly strike and what causes it?

  • Sheep are affected by myiasis (maggots)
  • Caused by flies laying eggs on the skin
• What organism causes Pyhtiosis, and which species is most commonly affected?

  • Caused by Pythium insidiosum
  • Primarily affects horses, leading to pyogranulomatous dermatitis
• What causes Diamond Skin Disease in pigs, and what is its characteristic lesion?

  • Caused by Erysipelothrix rhusiopathiae
  • Resulting in vascular infarcts and characteristic diamond-shaped skin lesions
• What disease can cause alopecia in sheep, and what is the causative agent?

  • Scrapie, a prion disease
  • Can lead to wool loss and neurological signs
• Other name for exudative epidermatitis of pigs 


  Greasy pig disease
• What is furunculosis 


  Hair follicle rupture
• Characteristics of papular stomatitis 


  Caused by- parapox virus

  Stomatitis in calves and mammary papillitis in adults

  Zoonotic disease-milkers nodules

  Target shaped lesions
• Subcutaneous fungal infection in Persian cats how does it occur 


  In this case the fungi can infect open wounds this is rare in many species but occurs here
• What is the fungus that infects Persian cats and what does it cause 


  Cryptococcus neoformans

  Causes dermal granulomas with fungal hyphae.

  It is rarely confined to skin and can spread to the brain 🧠
• State the types of fungal yeast 


  Histoplasma capsulatum, blastomyces spp, coccidosis immitis