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International Journal of Clinical & Medical Images


Clinical-Medical Image - International Journal of Clinical & Medical Images (2022) Volume 9, Issue 7

Rare Origin of a Soft Tissue Cystic Mass of the Thigh: Muscular Hydatidosis

Rare Origin of a Soft Tissue Cystic Mass of the Thigh: Muscular Hydatidosis

Author(s): Zakia El Yousfi*, Kaoutar Imrani, Abdelilah Drissi Maniani, Ittimade Nassar and Nabil Moatassim Billah

Department of Central Radiology, Ibn Sina Hospital, Morocco

*Corresponding Author:
Zakia El Yousfi
Department of Central Radiology
Ibn Sina Hospital, Morocco
Tel: +212656118885
E-mail: [email protected]

Received: 29 June 2022, Manuscript No. ijcmi-22-68105; Editor assigned: 01 July 2022, Pre QC No. P-68105; Reviewed: 14 July 2022, QC No. Q-68105; Revised: 18 July 2022, Manuscript No. R-68105; Published: 25 July 2022, DOI: 10.4172/2376-0249.1000837

Citation: El Yousfi Z, Imrani K, Maniani AD, Nassar I and Billah NM. (2022) Rare Origin of a Soft Tissue Cystic Mass of the Thigh: Muscular Hydatidosis. Int J Clin Med Imaging 9:837.

Copyright: © 2022 El Yousfi Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and so urce are credited.

Clinical-Medical Image

Clinical History

her right thigh that had been increasing in size for last 8 months and had become progressively more painful especially during hip movement, without inflammation or lymphadenopathy.

Imaging Findings

Right thigh MRI showed multiloculated cystic formations on the right gluteus maximus and gluteus medius muscles extending inter-muscularly to the anterior and medial compartment of the thigh. They were thin-walled and appeared in intense hyper signal T2 weighted imaging and hypo signal T1 weighted imaging. Peripheral enhancement was observed after injection of Gadolinium. The formations respected the femoral vessels, but had a contact to the sciatic nerve, which was repressed but without visible signs of invasion. Surgical excision of mass was performed. Histopathology confirmed the diagnosis of hydatid cyst disease.


Muscular hydatidosis is rare and is thought to account for only 1-4% of hydatidosis even in highly endemic countries [1]. The thoracic wall musculature, pectoralis major, sartorius, quadriceps and gluteus are the reported locations of primary muscle localizations [2]. Three different pathways can be used by the parasite to reach and penetrate the muscles: passage into the systemic circulation after escaping from the hepatic and pulmonary capillary filtration, lymphatic passage through the intestine, or a venous circuit shunting the liver [3] (Figure 1).

Ultrasound is the first-line examination of choice; images correspond to the stages of Gharbi’s classification and reflect the evolutionary stage of the disease [4]. MRI is the gold-standard for diagnosis as it allows for precise localisation and numbering of cysts, as well as assessment of their relationships with the neighbouring vascular and neural elements [5]. Furthermore, it comforts the diagnosis by showing peripheral enhancement after gadolinium injection, eliminating differential diagnoses such as soft tissue tumours [6] (Figure 2).

Treatment of MH is based on a combination of medical treatment and surgery, with wide excision of the mass. Long-term follow-up is recommended for early diagnosis of recurrence.

Final diagnosis

Intramuscular hydatidosis

Differential diagnosis list


Chronic hematomas


Necrotic malignant soft tissue tumours


Muscular hydatidosis; Soft tissue tumours; MRI

Encephalopathy; Herpes; MRI


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Citations : 226

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