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Human Tapeworm from Simalungun, Indonesia.

Umar Zein¹, Sahat Siregar, Hadiki Habib

¹Faculty of Medicine, Islamic University of Sumatera Utara, Medan, Indonesia. Dr. Umar Zein Tropical Disease and Infection Clinic, Medan, Indonesia. umar.zein@fk.uisu.ac.id.

Acta Medica Indonesiana

|August 7, 2019

Summary

A 46-year-old Indonesian man experienced daily tapeworm segment discharge for ten years. Diagnosis confirmed Taeniasis asiatica, a rare tapeworm infection, based on unique morphological features and local culinary practices.

Keywords:

T. saginata T. solium Taenia asiatica tapeworm

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Area of Science:

Medical Parasitology
Infectious Diseases
Gastroenterology

Background:

Taeniasis is a human intestinal infection caused by tapeworms.
Taenia solium and Taenia saginata are common causes, but Taenia asiatica is increasingly recognized, particularly in Asia.
Understanding the specific tapeworm species is crucial for accurate diagnosis and treatment.

Observation:

A 46-year-old Indonesian male presented with a decade-long history of daily passage of mobile tapeworm segments (proglottids).
Physical examination revealed no significant symptoms, despite the chronic nature of the discharge.
A 2.86-meter-long tapeworm was recovered after treatment with Praziquantel and Bisacodyl.

Findings:

Microscopic examination of the recovered tapeworm revealed unique morphological characteristics, including 16 pairs of uterine branches and the absence of a rostellum on the scolex.
These features, along with the patient's ethnographical background involving consumption of raw pork, strongly indicated Taenia asiatica infection.
The proglottid morphology (length:width ratio of 1-1.5:1) further differentiated it from T. solium and T. saginata.

Implications:

This case highlights the importance of considering Taenia asiatica in the differential diagnosis of taeniasis in endemic regions.
The unique morphological findings underscore the need for detailed macroscopic and microscopic analysis for precise species identification.
Further molecular studies are recommended to fully characterize this tapeworm and its potential subtypes.