RESUMO
INTRODUCTION: A solitary infantile myofibroma tumor arises as a hard, painless cutaneous or subcutaneous nodule and is defined as an uncommon soft tissue neoplasm that is usually seen in childhood. CASE PRESENTATION: A nine-month-old female infant presented with a solid mass that appeared one month ago. The mass gradually increased in size within the right posterior triangle of the neck, without any local or systemic accompanying symptoms. Laboratory tests were normal. Ultrasonography revealed a homogeneous tissue mass measuring 1.5 × 3 cm, with blood flow within it. Multislice CT scan accurately localized the isolated tumor. The mass was surgically excised and found within the sternocleidomastoid muscle, without any adhesions to adjacent tissues. Histological examination of the tumor and immunohistochemical tests confirmed infantile myofibroma. CLINICAL DISCUSSION: IM is one of the most common soft tissue tumors in children and mainly consists of myofibroblasts. 90 % of IM cases are diagnosed before the age of two years. Possible therapeutic measures for this tumor include conservative management, surgical resection, chemotherapy, radiation therapy, and steroid injections into the tumor. Surgical removal of the tumor is often performed, and if it is single and completely removed, the prognosis is good with a recurrence rate of less than 10 %. CONCLUSION: Infantile myofibroma is considered a benign tumor, but it may be fatal in some cases. Each case is treated individually according to the number (single or multicentric), size, location, symptoms, and visceral involvement. Surgical resection remains the therapeutic procedure of choice in most cases.
RESUMO
INTRODUCTION AND IMPORTANCE: Hydatid cysts are a parasitic disease that occurs when humans ingest contaminated food or water containing parasitic eggs. It is a common disease worldwide, especially in cattle breeding areas. In rare cases, the primary cysts contain daughter cysts inside them, as seen in this case. CASE PRESENTATION: We report a 28-year-old rural woman who presented with a history of sputum-producing cough, dyspnea, hemoptysis, and pain in the right side of the chest. The chest-abdomen-pelvis MSCT revealed a large number of cysts (more than 200 cysts) with daughter cysts inside them in the right lung and mediastinum. The cysts were surgically resected. After surgery, albendazole 200 mg twice a day was prescribed, with monitoring of liver function. CLINICAL DISCUSSION: In the lungs, hydatid cysts are commonly found in the right lung (50 %), left lung (40 %), and may also be bilateral (10 %). The presence of multivesicular cysts in the lung is very rare. There are two hypotheses concerning the daughter cysts' formation. The first one suggests the effect of repeated mechanical trauma, while the other proposes the defensive mechanism of the patient. Diagnosis of the hydatid cysts in the lung is primarily through radiographic investigations such as Chest X-ray and CT scan. Surgery is still the main method to manage pulmonary hydatid cysts. CONCLUSION: Although rare, multivesicular hydatid cysts in the lung should be considered, as they can mimic other diseases such as tumors and can cause an embolus in the pulmonary artery.
