• Parasites, Hosts and Diseases
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• 제25권2호
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• pp.129-140
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• 1987

The present study was undertaken to demonstrate the surface structure of Paragonimus westermani metacercaria in Korea with special reference to the distribution of sensory papillae. Metacercariae were isolated from crayfish, one of the second intermediate tost of P. westermani in Bogil island, Chollanam-do (Province), Korea, where has been known as an endemic area of human paragonimiasis. Isolated metacercariae were encysted and examined with light. scanning and transmission electron microscopes for morphological features. On the surface of iBetacercariae, three types of sensory FaFillae were identified. Large domed papillae ($3~5{\mu\textrm{m}}$), which were covered with wrinkled plasma n!embrane of the worm, were distributed on the oral and ventral suckers only. On the oral sucker, these large domed papillae were 12~13 in number. On the other hand large domed papillae on the ventral sucker were constantly 6 in number and hexagonal in distribution. Small domed papillae ($2~3{\mu\textrm{m}}$), of which surface was more smooth than those of large ones, were distributed symmetrically on the ventral (30~32 pairs) and dorsal surfaces (40~42 Pairs). Ciliated Papillae ($0.8~1.5{\mu\textrm{m}}$) were observed about 5~6 in number around the oral sucker and 3~5 pairs each on the ventral and dorsal surface of the body. Single Fcinted spines covered the entire surface of the body except around the excretory pore. Spines on the anterior fart of the body were 0.9~2.0${\mu\textrm{m}}$ in length and $45~55/100{\mu\textrm{m}}$2 in number, and were gradually reduced in length ($0.4~1.4{\mu\textrm{m}}$) and in nuns.her ($12~27/100{\mu\textrm{m}}$2) toward the posterior part. The body wall of p. westermoni metacercariae was consisted with anucleated syncytium layer, fibrous interstitial layer and musclar layer. In the anucleated syncytium, biconcave ($0.15~0.55{\mu\textrm{m}}$) and spherical ($0.08~0.16{\mu\textrm{m}}$) secretory granules, which were transferred from epidermal cells via protoplasmic tubules, mitochondria and rihoEorses, T-ere observed. Spines originated around the basement membrane protruded externally. Epidermal cells were consisted with a nucleus and a cytoplasm, and connected to syncytium with protoplasmic tubules. In the cytoplasm many secretory granules, mitochondria, Golgi complex, endoplasmic reticula, ribosomes and lipid droplets were observed.

• Tuberculosis and Respiratory Diseases
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• 제66권6호
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• pp.451-456
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• 2009

폐흡충증은 예전에 비해서 발생 빈도가 감소 하였으나, 현재도 산발적으로 발생하고 있다. 폐흡충증은 민물 게나 민물 가재 등의 섭취력이 있고, 혈액검사상 호산구 증가증이 있는 경우 의심을 해보아야 한다. 객담이나 대변 검사상 충란을 발견할 경우 폐흡충증을 진단할 수 있으나 실제로 발견되는 경우는 40% 미만이므로 폐흡충증이 의심된다면 방사선학적 및 혈청학적 방법에 의해 폐흡충증을 확인하는 것이 필요하다. 치료로는 praziquantel 25 mg/kg 씩 1일 3회, 이틀간 투여하는 1회 치료 과정으로 비교적 좋은 예후를 보인다. 그러나 본 증례처럼 1회 치료로 불충분하여 재발하는 경우가 있으므로 치료 후에도 정기적인 추적 관찰이 필요하겠다. 또한 재발 및 재치료율을 낮추기 위한 연구와 재발 환자의 치료 기간 정립이 필요할 것으로 생각된다. 저자들은 좌측 흉수를 주소로 내원하여 폐흡충에 의한 흉수로 진단 받은 35세 환자에서 praziquantel 25 mg/kg씩 1일 3회, 2일간 투여하여 호전 보였으나, 이후에 3차례나 재발하여 총 4차례 치료 과정을 반복하여 호전된 증례를 경험하였기에 문헌과 함께 보고하는 바이다.