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Periarticular Histiocytic Sarcoma in a 7-year-old FS Bernese Mountain Dog: Our Case Of the Month January 2018

Case Of the Month

Case Of the Month

Periarticular Histiocytic Sarcoma in a 7-year-old FS Bernese Mountain Dog: Our Case Of the Month January 2018

Hx of TTA performed on both knees. The patient was presented for a mass seen on the right knee. Owner reported the patient seemed more tired and not motivated for walks; limping on right hind limb. Examination of the right leg found a 15 cm invasive mass at the knee. The patient was placed on NSAIDS and scheduled for further diagnostics. CBC/Chem was WNL. 

Hx of TTA performed on both knees. The patient was presented for a mass seen on the right knee. Owner reported the patient seemed more tired and not motivated for walks; limping on right hind limb. Examination of the right leg found a 15 cm invasive mass at the knee. The patient was placed on NSAIDS and scheduled for further diagnostics. CBC/Chem was WNL. 

DX

Periarticular histiocytic sarcoma knee, suspicion of metastatic disease in the lungs and abdomen (lymph nodes).

Outcome

FNA of lung nodules and abdominal lymph nodes as well as popliteal lymph nodes were recommended. Bone marrow examination was also offered as a diagnostic option. Chemotherapy and radiation therapy were discussed with the owner as the recommended treatment. Restaging was performed on the patient after 2 months of treatment with chemo (CCNU) and palliative radiotherapy. Complete remission of the lesions in the chest and abdomen was confirmed.

Comments

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Patient Information

Gender : Female, Spayed
Species : Canine

Clinical Signs

  • "Not Doing Right"
  • Difficulty walking
  • Lethargy

Exam Finding

  • Lethargy
  • Masses

Images

knee_ca-crml_kneelungs_rlungs_lmedial_iliac_ln_2ln_spleen_2left_chest_2_months_post_tx_00022658_00041752_dicom_cr_2011_07_14_0000734350right_chest_2_months_post_tx_00022658_00041752_dicom_cr_2011_07_14_0000734351iliac_2_months_post_tx_ohne_titel

Clinical Signs

  • "Not Doing Right"
  • Difficulty walking
  • Lethargy