Giant ethmoid mucocele presenting as a nasal region mass with intracranial extension, a case report.

Background: Mucocele is expansile slowly growing benign cystic lesion that occurs as a result of occlusion of the ostia of the paranasal sinuses. It mostly involves the frontal sinus followed by ethmoid and rarely sphenoid and maxillary sinuses. Case presentation: Authors present a rare case of giant ethmoid mucocele in 34-year-old adult male presenting as nasal region mass with intracranial extension. Conclusions: Authors highlight that giant ethmoid mucoceles are rare and may have intracranial or extracranial extension resulting in craniofacial disfigurement which should be considered in patient presenting with nasal region mass.

Unilateral diplopia and ptosis in a child with COVID-19 revealing third cranial nerve palsy.

We report the case of a 10-year-old boy with acute-onset diplopia and ptosis in the right eye. CR was positive for SARS-CoV-2. The patient was managed successfully with corticosteroids. We highlight the need for heightened suspicion of occult COVID-19 infection among children presenting with unusual III nerve palsy.

Lumbar fetiform teratoma; a case report.

Fetiform teratoma is a rare highly developed mature teratoma with organoid differentiation although it is not as developed as fetus in fetus which is the only differential diagnosis of this entity. It should be distinguished from the fetus in fetu by absence of the axial skeleton. A 6-month-old baby girl with a lumbar lump underwent ultrasonography, CT-scan and surgery. On imaging, a sac-like structure was noted in the lumbar region containing bowel segments, mesentery-like structure and few lymph nodes. The patient underwent surgery. The entire sac with its content were completely excised. Very few cases of fetiform teratoma have been reported in English literature however to the best of our knowledge lumbar fetiform teratoma has not been reported up to now. Highly developed teratoma is a diagnostic dilemma as it resembles fetus in fetu. The absence of a spinal axis differentiates this entity from the fetus in fetu.

Radiographic features of Ollier's disease - two case reports.

BACKGROUND: Ollier's disease is a non-hereditary, benign bone tumor which is usually characterized by presence of multiple radiolucent lesions (enchondromas) in the metaphysis of long bones with unilateral predominance. The disease is a rare clinical entity with 1/100000 occurrence in early childhood. Patients mostly present with multiple hard swellings and deformity of the tubular bones specially hands and feet with leg discrepancy and pathologic fractures. CASE PRESENTATION: We present two cases of Ollier's disease in a 13 years old female and 8 years old boy which had no specific symptoms. The girl had multiple hard swellings and deformity in the fingers of both hands and left toes with left leg deformity and discrepancy. Her plain radiographs demonstrated multiple expansile enchondromas in the phalanges of hands, left toes and metaphyses of upper humeri as well as left leg bones. The enchondromas were also noted in the left iliac bone and anterior end of ribs. The boy had bowing deformity and shortage of left leg with multiple enchondromas in the metaphyses of left femur, left tibia and fibula as well as left iliac bone in his radiographic images. CONCLUSION: Ollier's disease is usually diagnosed by clinical signs and typical location of enchondromas across skeleton in conventional radiography. It usually does not need specific treatment. Well understanding of the clinical manifestation and radiographic features can prevent unnecessary application of other imaging modalities; while other diagnostic imaging modalities like MRI, ultrasound and scintigraphy can be used in complicated and painful conditions.

CT and MRI Features of Pediatric-Aged Colloid Cysts: Report of Two Cases.

A 10-year-old boy with the history of headache, anorexia, and vomiting was referred to our department to undergo a brain CT scan. CT images demonstrated a well-defined, rounded, hyperdense lesion at the level of the foramen of Monro causing moderate dilatation of the lateral ventricles. An 11-year-old girl with a long history of a headache was also referred to undergoing a brain MRI. MR images demonstrated a well-defined round abnormal signal intensity lesion at the level of the foramen of Monro causing moderate dilatation of lateral ventricles. The findings from imaging perspective were consistent with the colloid cyst of the third ventricle. Therefore, the diagnosis of the colloid cyst was made.

Childhood giant omental and mesenteric lipoma.

Omental and mesenteric lipomas are very rare benign lesions of mature adipose tissue. They are well-defined, noninvasive, and encapsulated masses that can be discovered in asymptomatic patients or may cause variable nonspecific symptoms depending on their size and location. The omental and mesenteric lipoma has confusing features in ultrasound; however, computed tomography and magnetic resonance imaging can well characterize and demarcate these lesions. Though few cases of mesenteric and omental lipomas have been reported in the literature, but because of its large size and childhood presentation, the case we present, can be one of the largest childhood omental and mesenteric lipomas ever reported. A 6-year-old girl presented with slowly progressing abdominal distension and repeated dull abdominal pain for last 4 years. Abdominal and pelvic computed tomography examination revealed a huge mesenteric and omental lipoma that was resected surgically without any complications.