L-아스파라기나제는 급성 림프모구백혈병 환자에서 사 용이 증가하는 약물로, 췌장염은 이 약제의 중요한 합병증 중 하나이며, 항암화학치료 중 이에 대한 주의가 필요하다. 급성 췌장염은 드물지만 치명적 합병증인 괴사성 췌장염 으로 진행할 수 있으며 빠른 진단과 적절한 처치가 중요하다. 본 증례는 괴사성 췌장염에 동반된 췌관 누출 그리고 췌장가성낭이 경유듀적 췌관 스텐트 삽입으로 호전되었던 증례이다. 향후 이러한 L-아스파라기나제 유발 췌장염 및 췌관 누출의 치료를 위한 다양한 접근 및 안전성에 대해 추가적인 연구가 요구된다.

An Australian cattle dog (case 1: 6-year-old castrated male) and a Shih-Tzu dog (case 2: 8-year-old castrated male) were referred to the Gyeongsang Animal Medical Center due to anorexia and depression. Physical examinations, complete blood counts, serum chemical analysis, radiography, ultrasonography, and bone marrow biopsy were performed. Upon physical examinations of cases 1 and 2, enlargement of superficial lymph nodes was not identified. Hematologic findings in these dogs included leukocytosis with severe lymphocytosis, anemia, and thrombocytopenia. Upon radiography, both dogs showed splenomegaly. Upon examination of a peripheral blood smear in case 1, immature lymphoid cells, featuring decreased nuclear chromatin condensation and nuclear pleomorphism, were present. Biopsy samples of the bone marrow in case 1 revealed hypercellularity as well as a large number of immature lymphoblastic cells similar in shape to cells in the peripheral blood. The characteristic morphological features of peripheral blood and bone marrow samples in case 2 were small lymphocytes. Thus, the dogs were tentatively diagnosed with acute lymphoblastic leukemia (ALL) and chronic lymphocytic leukemia (CLL), respectively. After diagnosis, the CLL patient was administered chlorambucil and prednisolone therapy. Due to its similarity to human leukemia, the canine leukemia model provides a valuable model for research into human leukemia.

Three-way Philadelphia (Ph) variant translocation is rarely found in patients with acute lymphoblastic leukemia. We report a 3-way Ph variant t(1;9;22)(p22;q34;q11.2) which was detected for the first time in acute lymphoblastic leukemia and a combined novel variant t(1;15)(q11;q24). The patient was a 56-year-old woman and was diagnosed with acute lymphoblastic leukemia. Karyotypic analysis showed 46,XX, t(1;9;22)(p22;q34;q11.2),der(15)t(1;15)(q11;q24). t(1;9;22)(p22;q34;q11.2) was reported only in patient with chronic myelogenous leukemia. Additional FISH showed 1q trisomy and supported the accurate detection of der(15)t(1;15)(q11;q24). Further studies are necessary to discover genes involved in development of the novel variant and the significance of the novel variant.