Acta Medica Okayama Volume 58, Issue 5 2004 Article 4 OCTOBER 2004 A thoracic-epidural granulocytic sarcoma case that was diagnosed preceding the onset of and that recurred co-incidental to acute promyelocytic leukemia, which developed after surgical treatment. Ahmet Savranlar * Yucel Ustundag † Tulay Ozer ‡ Taner Bayraktaroglu ** Nejat Demircan †† Huseyin Ozdemir ‡‡ Ali Borazan § * Zonguldak Karaelmas University, † Zonguldak Karaelmas University, ‡ Zonguldak Karaelmas University, ** Zonguldak Karaelmas University, †† Zonguldak Karaelmas University, ‡‡ Zonguldak Karaelmas University, § Zonguldak Karaelmas University, Copyright c 1999 OKAYAMA UNIVERSITY MEDICAL SCHOOL. All rights reserved.