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Malcolm D. Mattes,Jon S. Cardinal,Geraldine M. Jacobson 대한방사선종양학회 2016 Radiation Oncology Journal Vol.34 No.2
Although carbohydrate antigen (CA) 19-9 is a useful tumor marker for pancreatic cancer, it can also become elevated from a variety of benign and malignant conditions. Herein we describe an unusual presentation of elevated CA 19-9 in an asymptomatic patient who had previously undergone adjuvant chemotherapy and radiation therapy for resected early stage pancreatic cancer. The rise in CA 19-9 might be due to delayed radiation-induced inflammation related to previous intra-abdominal radiation therapy with or without radiation recall induced by gemcitabine. After treatment with corticosteroids the CA 19-9 level decreased to normal, and the patient has not developed any evidence of recurrent cancer to date.
Mattes, Malcolm D.,Cardinal, Jon S.,Jacobson, Geraldine M. The Korean Society for Radiation Oncology 2016 Radiation Oncology Journal Vol.34 No.2
Although carbohydrate antigen (CA) 19-9 is a useful tumor marker for pancreatic cancer, it can also become elevated from a variety of benign and malignant conditions. Herein we describe an unusual presentation of elevated CA 19-9 in an asymptomatic patient who had previously undergone adjuvant chemotherapy and radiation therapy for resected early stage pancreatic cancer. The rise in CA 19-9 might be due to delayed radiation-induced inflammation related to previous intra-abdominal radiation therapy with or without radiation recall induced by gemcitabine. After treatment with corticosteroids the CA 19-9 level decreased to normal, and the patient has not developed any evidence of recurrent cancer to date.
Musculoskeletal ultrasound: athletic injuries of the lower extremity
Nathaniel B. Meyer,Jon A Jacobson,Vivek Kalia,김성문 대한초음파의학회 2018 ULTRASONOGRAPHY Vol.37 No.3
Athletic injuries of the lower extremities are commonly encountered in clinical practice. While some pathology can be diagnosed on physical exam, others are a clinical dilemma with nonspecific symptomatology. In these situations, ultrasound imaging can be utilized as an exceptional diagnostic tool, offering unique advantages over other imaging modalities. This article will review the imaging characteristics of commonly encountered athletic injuries of the lower extremity.
MR Imaging Appearances of Soft Tissue Flaps Following Reconstructive Surgery of the Lower Extremity
Olaf Magerkurth,Gandikota Girish,Jon A Jacobson,Sung Moon Kim,Monica K Brigido,Qian Dong,David A Jamadar 대한영상의학회 2015 Korean Journal of Radiology Vol.16 No.1
MR imaging appearances of different types of reconstructive muscle flaps following reconstructive surgery of the lower extremity with associated post-surgical changes due to altered anatomy, radiation, and potential complications, can be challenging. A multidisciplinary therapeutic approach to tumors allows for limb salvage therapy in a majority of the patients. Decision-making for specific types of soft tissue reconstruction is based on the body region affected, as well as the size and complexity of the defect. Hematomas and infections are early complications that can jeopardize flap viability. The local recurrence of a tumor within six months after a complete resection with confirmed tumor-free margins and adjuvant radiation therapy is rare. Identification of a new lesion similar to the initial tumor favors a finding of tumor recurrence.