4/10/2020 E-Library - Information At Your Fingertips: Printer Friendly Large soft tissue mass of the anterior left thigh, as described. Considerations include neoplasm such as benign/malignant nerve sheath tumor, hemangioma, soft tissue sarcoma or inflammatory process such as intramuscular abscess.[11] The Pathology Report of the MMC also showed the following: “Left anterior thigh mass excision: Malignant fibrous histiocytoma, myxoid type. Margins of resection negative for tumor.”[12] On February 27, 2007, OSG Manila certified David’s entitlement “to sickness allowance from the company or principal equivalent to basic salary of member.”[13] On March 2, 2007, Dr. Christopher Co Peña (Dr Peña), also of MMC, wrote Dr. Lim, informing the latter of the etiology of soft tissue sarcoma, viz: The following are the etiology of soft tissue sarcoma: 1. Ionizing radiation 2. Genetic predisposition 3. Chemical exposure – Phenoxyacetic acid, cholorophenols, thorotrast, vinyl chloride, arsenic 4. Chronic lymphedema Whether work-related or not will depend on the exposure of the above mentioned factors.[14] On March 5, 2007, the Marine Medical Services of MMC certified that David had undergone medical and surgical evaluation treatment at its establishment from December 21, 2006 due to “malignant fibrous histiocytoma, left thigh calcaneal spur, left; s/p with excision of mass left thigh.”[15] Apparently as a result of another inquiry regarding David’s illness and its relation to his work, Dr. Peña again addressed a letter to Dr. Lim stating: Dear Dr. Lim, This is with regards to Mr. Jessie David, diagnosed case of Malignant Fibrous Histiocytoma last February 2007. S/P Resection. Etiology has already been mentioned in my previous letter dated March 2, 2007. It is difficult to determine exactly whether his work history would have bearing as etiology is multifactorial. Unless there is documented exposure to the previously mentioned chemicals.[16] Despite the non-conclusive findings of the company designated physician and Dr. Peña, elibrary.judiciary.gov.ph/thebookshelf/showdocsfriendly/1/55191 2/12

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