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We report the case of a patient with hematocolpos on hymenal imperforation, revealed following cyclic pelvic pain with primary amenorrhea associated with pelvic heaviness for one year. MRI showed significant distension of the vagina forming a pseudo mass, well limited, in T1 high signal, in moderate T2 high signal, with the presence of declining deposits in hyposignal related to hemosiderin. A hymenotomy was performed under general anaesthesia, the postoperative course was favourable. This case illustrates the particularity of suspecting a hematocolpos in the presence of a pelvic mass in a young girl with amenorrhea.

We report an observation of a macro- and microcystic lymphatic malformation located in the right upper limb. This was a 5-year-old girl with no previous pathological history, followed since the age of 11 months for a congenital subcutaneous, painless and soft swelling of the right upper limb. Ultrasound of the soft tissue and magnetic resonance imaging (MRI) allowed the diagnosis of macro- and microcystic lymphatic malformation of the right upper limb. There is little epidemiological data on cystic lymphatic malformations (CLM). Superficial MLKs are more numerous than deep MLKs; of the superficial MLKs, nearly 75% are located in the head and neck, with an estimated incidence of 1.2 to 2.8 per 1000 births, and in the axillary hollows in 20% of cases. They affect equally males and females and different ethnic backgrounds. Involvement of the upper limb and particularly the arm is very rare. MRI plays an important role in the diagnosis and assessment of the tumor’s boundaries. Treatment can be difficult because of the location of the tumor and its extension into the surrounding tissue.

Cystic echinococcosis is a parasitic infestation caused by the tapeworm Echinococcus granulosus.Although adults are mostly affected, children also suffer from this disease. The lungs are the most common sites of infection in children, however involvement of other sites is also seen. Peritoneal cystic echinococcosis is rare in children even in endemic areas. Determining whether the origin of this site is primary or secondary remains controversial, especially in children. Secondary peritoneal cystic echinococcosis are expected to occur after spontaneous, traumatic or accidental rupture during surgery of primary liver or splenic cysts. Primary peritoneal cystic echinococcosis without any evidence of another organ involvement has been rarely reported. We report a case of cystic echinococcosis involving the peritoneum and scrotum presenting with a gradually increasing scrotal swelling in a 7-year-old child, along with sonographic, CT, and MRI features.

Rhabdomyosarcoma is a soft tissue highly malignant neoplasm. The most common sites in childhood are the head and neck with only 10% of all cases occurring in the orbit. Clinical manifestations are not specific which makes pre-operative diagnosis challenging. Orbital tumors are mostly detected at early stages, due to their obvious symptoms but they are characterized with a rapid growth. Imaging techniques and especially MRI are very contributive in the diagnosis process. The purpose of this review is to provide a general overview of primary orbital Rhabdomyosarcoma through a representative case of a patient that has been managed at our institute as well as a review of the literature.

Definition: Fibromatosis colli is a congenital torticollis of muscular origin. It is secondary to a unilateral retraction of the sternocleidomastoid muscle, which appears enlarged and swollen on imaging. Radiological-Clinical Observation: It is a one month old infant who consults in the pediatric department for a cervical swelling lateralized to the right with a vicious neck attitude. Discussion: Fibromatosis colli is an infantile pseudotumor. Its incidence is approximately 0.4% of live births. Its exact etiology is still unknown. This condition is often unilateral. Ultrasound is the examination of choice for the exploration of this disease. In case of diagnostic doubt, a cytopunction may be indicated. The treatement is generally conservative and based on motor physiotherapy. Surgical treatment is sometimes necessary in case of persistence of the lesion. Spontaneous evolution can lead to an almost total cure by the age of 24 months in most cases. Conclusion: Fibromatosis colli is considered among the rare causes of cervical masses in infants and newborns. Imaging plays an important role in its diagnosis and post-treatment follow-up. Its treatment is often conservative and the evolution is favorable.