ABSTRACT
Cytology by fine-needle cytology is indispensable for diagnosing head and neck tumor, especially for thyroid nodule. There are two methods of fine needle cytology; one of fine-needle aspiration cytology (FNAC and another of fine-needle non-aspiration cytology (FNNAC). These previous procedures has each disadvantage such as the mixing of blood or low yield of cells. We proposed a new technique: selective low-pressure fine needle aspiration cytology (SLOP-FNAC) to overcome the backwards of previous procedures. We used the scoring system by Mair et al. to evaluate smear quality of specimens obtained with FNNAC and SLOP-FNAC. SLOP-FNAC smears exhibited higher scores in amount of cellular material, degree of cellular degeneration and cell yield, and retention of appropriate architecture compared to FNNAC smears. The SLOP-FNAC smears scored significantly higher for amount of cellular material and retention of appropriate architecture evaluated (P = 0.0261 and P = 0.0024, Student's t-test). SLOP-FNAC may be a useful cell sampling technique that reduces blood contamination while securing a high cell yield with maintaining tissue structure.
ABSTRACT
This 69-year-old man underwent a partial jejunectomy for gastrointestinal stromal tumor(GIST) at the age of 60, and subsequently hepatectomy of segment 5, 6, 7 for liver metastasis of GIST a year later. An irregular mass close to the cutting stump of the liver, and a mass that showed enhanced-effect at segment 4 was discovered 28 months after hepatectomy. In order to treat this second recurrence, we administered imatinib and sunitinib sequentially. The tumor subsequently became drug-resistant, so we removed it surgically together with the liver and a portion of right diaphragm, and a tumor in segment 4. The patient shows no recurrent sign 4 months after surgery. This case suggests that surgical resection should be considered for partially drug resistant GIST.
