Invasive adrenal mass, pheochromocytoma likely, in an 11 year old FS Dachshund

Case Study

Invasive adrenal mass, pheochromocytoma likely, in an 11 year old FS Dachshund

An 11-year-old FS Dachshund was presented for evaluation of vomiting, leukocytosis, and a potential mass seen on survey radiographs. Bloodwork on the dog was otherwise normal.

An 11-year-old FS Dachshund was presented for evaluation of vomiting, leukocytosis, and a potential mass seen on survey radiographs. Bloodwork on the dog was otherwise normal.

Sonographic Differential Diagnosis

Invasive left adrenal mass is seen in this study; the lack of Cushingoid clinical signs points to likely pheochromocytoma, although a nonfunctional adenocarcinoma possible.

Image Interpretation

A large micronodular, dramatically hypoechoic, strongly vascular and invasive mass is present arising from the left adrenal gland, invading the phrenic vein and vena cava. Mass affect upon the left kidney is also present.

DX

Invasive adrenal mass adneocarcinoma or pheochromocytoma

Outcome

Blood pressure measurements were recommended. Low dose dexamethasone suppression test to assess the functionality of the adrenal tumor was recommended as well, especially if urine specific gravity was less than 1.020 (UA was pending). A guarded to poor long term prognosis was given.

Clinical Differential Diagnosis

Abdominal mass – organ neoplasia (origin in spleen, liver, kidney, GI tract, ovary, adrenal, or lymph node), granuloma (mesentery, organ associated, fungal disease, or a perforated and encapsulated foreign body), intestinal obstruction (neoplasia, foreign body), hydronephrosis.

Sampling

None

Patient Information

Patient Name : Genevieve C
Gender : Female, Spayed
Species : Canine
Type of Imaging : Ultrasound
Status : Complete
Liz Wuz Here : Yes
Code : 07_00039

Clinical Signs

  • Vomiting

Images

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CBC

  • WBC, High

Clinical Signs

  • Vomiting