Crusting, Scaling, Pustules and Papules Quiz
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Questions and Answers

What is the characteristic feature of a papule?

  • Large size
  • Fluid-filled cavity
  • Flat and discolored
  • Raised and solid (correct)

    • Which of the following is not a primary lesion?

  • Crust (correct)
  • Pustule
  • Papule
  • Macule

    • Which of the following is a common cause of crust in dermatological conditions?

  • Fungal infection
  • Bacterial infection (correct)
  • Hypersensitivity
  • Viral infection

    • Which of the following is a primary keratinization disorder that is breed-related and occurs in younger animals?

    <p>Ichthyosis</p> Signup and view all the answers

    Which of the following is a common ectoparasite that causes burrowing mange in dogs?

    <p>Sarcoptes</p> Signup and view all the answers

    Which of the following is a common hypersensitivity that can cause dermatological issues in dogs, cats, and horses?

    <p>Environmental hypersensitivity</p> Signup and view all the answers

    Which of the following is a common endoparasite that can cause dermatological issues in horses?

    <p>Demodex</p> Signup and view all the answers

    Which of the following is a primary lesion that is a secondary keratinization disorder?

    <p>Scale</p> Signup and view all the answers

    Which of the following is a common viral infection that can cause dermatological issues in horses only?

    <p>Occult sarcoids</p> Signup and view all the answers

    Which of the following is a common ectoparasite that causes dermatological issues in dogs and cats?

    <p>Fleas</p> Signup and view all the answers

    Which of the following is a common fungal infection that can affect multiple species, especially cattle, horses, and cats?

    <p>Dermatophytosis</p> Signup and view all the answers

    What is a cutaneous reaction pattern with multiple causes, often presenting as papules in cats?

    <p>Military dermatitis</p> Signup and view all the answers

    Which of the following is a common location for lesions associated with sarcoptic mange in dogs?

    <p>Ventral abdomen, pinneal margins, hocks and elbows</p> Signup and view all the answers

    Which of the following should be considered when lesions primarily affect the face, pinnae, and head?

    <p>Autoimmune disease</p> Signup and view all the answers

    What should be considered when lesions are at various stages of development and are consistent with superficial pyoderma?

    <p>Bacterial folliculitis</p> Signup and view all the answers

    Which of the following should be investigated to determine the cause of bacterial or Malassezia infection?

    <p>Cytology</p> Signup and view all the answers

    Which of the following is a common cause of military dermatitis in cats?

    <p>Dermatophytosis</p> Signup and view all the answers

    Which of the following is a common location for lesions associated with fleas in dogs?

    <p>Caudal and dorsal trunk</p> Signup and view all the answers

    What is the cutaneous reaction pattern with multiple causes, often presenting as papules in cats?

    <p>Milliary dermatitis</p> Signup and view all the answers

    What factors should be taken into consideration when producing a ranked differential diagnosis?

    <p>Signalment, history, and clinical examination</p> Signup and view all the answers

    What are some common locations for lesions associated with sarcoptic mange in dogs?

    <p>Ventral abdomen, pinneal margins, elbows, hocks</p> Signup and view all the answers

    What should be considered when lesions primarily affect the face, pinnae, and head?

    <p>Autoimmune disease</p> Signup and view all the answers

    What should be considered when lesions are at various stages of development and are consistent with superficial pyoderma?

    <p>Pemphigus</p> Signup and view all the answers

    What should be investigated to determine the cause of bacterial or Malassezia infection?

    <p>Cytology (+/- bacterial culture)</p> Signup and view all the answers

    What are some common causes of scale in dermatological conditions?

    <p>Bacterial infections, fungal infections, viral infections, ectoparasites, hypersensitivities, and underlying primary causes such as primary keratinization disorders.</p> Signup and view all the answers

    What are some common causes of crust in dermatological conditions?

    <p>Crust is almost always a secondary lesion and can be associated with scaling, pustular/papular, and ulcerative/erosive conditions. It often involves surface squames, hair, and topical medications.</p> Signup and view all the answers

    What are some common bacterial infections that can cause dermatological issues?

    <p>Pyoderma/folliculitis in dogs and horses, and dermatophilosis in farm animals and horses.</p> Signup and view all the answers

    What are some common fungal infections that can cause dermatological issues?

    <p>Dermatophytosis (ringworm) in all species but especially in cattle, horses, and cats, and Malassezia dermatitis in dogs.</p> Signup and view all the answers

    What are some common viral infections that can cause dermatological issues?

    <p>Viral papillomas in cattle and horses, and occult sarcoids in horses.</p> Signup and view all the answers

    What are some common ectoparasites that can cause dermatological issues?

    <p>Fleas in dogs and cats, lice in farm animals and horses, surface mites (especially Chorioptes) in horses and cattle, and burrowing mites (such as Sarcoptes) in dogs.</p> Signup and view all the answers

    What are some common hypersensitivities that can cause dermatological issues?

    <p>Flea hypersensitivity in dogs and cats, environmental and food allergies in dogs, cats, and horses, insect bite hypersensitivity in horses, and nutritional deficiencies/metabolic diseases.</p> Signup and view all the answers

    What are some common primary keratinization disorders?

    <p>Primary keratinization disorders are rare and include inherited defects in the normal keratinization process, such as abnormal formation of keratinocytes with or without abnormal sebaceous gland function. Some examples are nasal hyperkeratosis in Dogue de Bordeaux and ichthyosis in Golden Retrievers.</p> Signup and view all the answers

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