Dog Owner's Home Veterinary Handbook.pdf - Mr. Walnuts

Seborrhea: Dry type—Similar to heavy dandruff. Greasy type—Yellow-brown greasy
scales that adhere to hair shafts; rancid odor. May occur secondary to other skin
problems.
Vitiligo: Some hair loss, but mostly pigment loss that causes hair to change color.
Mostly seen on the face and head. Seen most often in Rottweilers and Belgian
Tervuren.
Zinc-responsive dermatosis: Crusty, scaly skin with hair loss over the face, nose,
elbows, and hocks. Cracked feet. Caused by zinc deficiency. Arctic or Northern
breeds are most susceptible.
Skin Diseases with Pus Drainage
THE SKIN AND COAT • 115
Actinomycosis and nocardiosis: Uncommon skin infections with abscesses and
draining sinus tracts that discharge pus and respond slowly to treatment.
Acute moist dermatitis (hot spots): Rapidly advancing patches of inflamed skin
from which the hair falls out. The skin is covered with a wet exudate of pus.
Progresses through self-chewing and results in pyoderma. Often occurs under ear
flaps of dogs with drop ears, such as Newfoundlands and Golden Retrievers. May be
associated with an underlying skin disease, but can also occur in hot, humid weather
if dogs swim or are bathed and don’t dry thoroughly.
Cellulitis or abscess: Painful, warm, reddened skin or pockets of pus beneath the
skin. Look for a cause, such as a foreign body, bite wound, or self-trauma from irritative
skin disease.
Folliculitis (hair pore infection): Hair shaft protrudes through the center of a pustule.
Superficial—Similar to impetigo, but extends to involve armpit folds and chest.
Deep—Pustules become larger and firmer. Pus, crusts, and draining tracts in the skin.
Impetigo: Pustules and thin brown crust on hairless skin of abdomen and groin.
Occurs in young puppies. May also be called puppy acne.
Interdigital cysts: A swelling between the toes that may open and drain pus.
Mycetoma: Painful swelling at the site of a puncture wound, usually on the legs or
feet. Pus drains through sinus tracts deep in the mass. Usually caused by a fungus, but
can be bacterial.
Puppy acne: Purplish red bumps on the chin and lower lip. Not painful. Also called
impetigo.
Puppy strangles (juvenile pyoderma): Painful swelling of the face (lips, eyelids,
ears), followed by rapid appearance of pustules and draining sores. Swollen lymph
nodes around the head and neck. Occurs in puppies under 4 months of age.
Skin fold pyoderma (skin wrinkle infection): Red, inflamed skin with a foul odor in
a lip fold, nose fold, vulvar fold, or tail fold.