PMC10336687_01
Computed tomography of the lungs of the patient showing the structure in the left lung that was later diagnosed as cystic echinococcosis.
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A chest X-ray revealed a perihilar solid structure in the left pulmonary hilus, and a subsequent CT scan revealed a cystic unilocular structure with the size of 6.1 x 3.2 x 4.1 cm (Fig. 1).
Removed echinococcal cyst.
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Due to the patient's history of pronounced haemoptysis, it was not possible to make a core-needle biopsy of the cyst, and it was decided to perform a left-sided thoracotomy and remove the cyst in toto (Fig. 2).
Histopathology of the echinococcal cyst, H&E staining. Protoscoleces (left) and hyaline membrane (right).
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Surprisingly, pathological examination described the structure as a cyst composed of a hyaline membrane and protoscoleces (Fig. 3) - CE.