An 11-year-old miniature poodle dog was presented with bilateral flank alopecia, gynecomastia, severe thrombocytopenia, and preputial edema. Based on characteristic clinical and hematological findings of hyperestrogenism and the presence of a caudal abdominal mass, a Sertoli cell tumor (SCT) was...

Background: Noninflammatory alopecia is a frequent problem in dogs. Estrogen-induced alopecia is well described in dogs, with estrogen producing testicular tumors and canine female hyperestrogenism. Objectives: To increase awareness that extensive alopecia in dogs can be caused by exposure to...

Canine endocrine dermatopathies account for 8.6% of the dermatological appointments, frequently presenting classic signs of non-pruritic bilaterally symmetrical alopecia that develops chronically. The most common are hypothyroidism, hyperadrenocorticism (HAC) and hyperestrogenism. Hypothyroidism is ...

Estradiol concentrations are evaluated in canine serum as part of an adrenal panel used to diagnose atypical Cushing's syndrome and other endocrine abnormalities. Estradiol concentrations are often elevated in dogs without clinical signs of hyperestrogenism, and the significance of this elevation...

Background - Noninflammatory alopecia is a frequent problem in dogs, and the pathogenesis is still unclear. Objective - The objective of this study was a comparative histological description of skin biopsies from dogs with different alopecic disorders and control dogs matched for coat type, season...

Sex hormone-related alopecia is a rare clinical condition in dogs. A 9-year-old female dog was presented with a history of symmetrical alopecia on the caudal aspects of both thighs. A dermatophyte culture, skin scrapes, and acetate strip examinations were negative for dermatophytes, parasites, and...

The objective of this article is to report a case of sertolioma in a dog with dermatological characteristic symptoms, but presenting an unusual aggressive behavior, both completely reverted after castration. Case: A 9-year-old, uncastrated, aggressive and uncontrollable Canadian Husky dog was...

In dog clinical patterns characterized by generalized bilaterally symmetrical alopecia are described. Even if it is not yet proved the direct association with alterations in sex hormones (in excess or deficiency) the name given in these cases is alopecia X. While it has been proven a correlation...

A 9-year-old spayed female Flemish cattle dog was presented with a history of vaginal discharge and a slowly progressive bilateral symmetrical alopecia on the neck, shoulders and flanks, ventral abdomen and the perineal area. Clinical examination revealed pattern alopecia with the presence of...

Endocrine diseases in the dog commonly manifest with dermatological lesions. Hypothyroidism is the most common endocrinopathy and usually presents with alopecia in areas of wear, seborrhea, and recurrent infections. Common clinical signs associated with hyperadrenocorticism include polyuria,...