Equinococosis quística músculo-esquelética primaria de evolución crónica / Primary musculo-skeletal echinococcosis of chronic evolution

Resumen La equinococosis quística es una zoonosis parasitaria crónica de alta prevalencia en Chile. Se presenta el caso clínico de un varón de 66 años, proveniente de la Región del Maule, con una equinococosis quística músculo-esquelética. Consultó por dolor, aumento de volumen y una fístula en muslo izquierdo, con salida de líquido cristalino. En el estudio imagenológico se identificaron múltiples lesiones quísticas en el ala sacra, hueso ilíaco y tejidos blandos de zona inguinal y muslo izquierdo. La serología Elisa IgG para Equinococcus granulosus fue positiva. Se realizó la resección quirúrgica de las lesiones musculares y se inició terapia antiparasitaria combinada con albendazol y praziquantel, con buena respuesta clínica; sin embargo, al suspender la terapia, por iniciativa del paciente, se reiniciaron los síntomas.

Cystic echinococcosis is a chronic parasitic zoonosis of high prevalence in Chile. We report a clinical case of a 66-year-old man, domiciled in an urban area of the Maule Region, who presents skeletal muscle cystic echinococcosis. Consultation for pain, volume increase and left thigh fistula that gives out crystalline fluid. In the study with imaging techniques, multiple cystic lesions are identified in the sacral wing, iliac bone, soft tissues of the groin and left thigh. No cysts were evident in other organs. Serology Elisa IgG was positive Echinococcus granulosus. Surgical resection of soft tissue injuries. Combined antiparasitic therapy with albendazole and praziquantel was started, with good clinical response. Upon discontinuation of antiparasitic therapy at the initiative of the patient, symptoms are reinitiated.

Atypical presentation of hydatid cyst in the thigh

To emphasise that hydatid cyst disease can present as a soft tissue mass even in an unusual site like the thigh, we report the case of a 21-year male patient who presented to Surgical Unit IV, Civil Hospital, Karachi, with a slow growing cystic swelling on the medial aspect of the left thigh. Based on serology and imaging, a diagnosis of solitary subcutaneous hydatid cyst thigh was made and cystopericystectomy was performed. Histopathology confirmed the diagnosis. Up to three months postoperatively, there was no recurrence. In the absence of visceral organ involvement, this is the first reported case of primary subcutaneous hydatid disease of the thigh in Pakistan

A case of sparganosis mimicking a varicose vein

Recent advances in radiological and serological techniques have enabled easier preoperative diagnosis of sparganosis. However, due to scarcity of cases, sparganosis has been often regarded as a disease of other etiologic origin unless the parasite is confirmed in the lesion. We experienced a case of sparganosis mimicking a varicose vein in terms of clinical manifestations and radiological findings. Sparganosis should be included among the list of differential diagnosis with the varicose vein.