Benign cystic mesothelioma in a child.

An 11-month-old male presented with massive ascites and respiratory distress with no known etiology. Laparotomy confirmed ascites with multiple large cystic structures that originated in the left retroperitoneum. Grossly, it resembled lymphangioma; however, histopathologic diagnosis was benign cystic mesothelioma (BCM), an entity that presents mainly in women of childbearing age.

Partial splenectomy for littoral cell angioma.

Littoral cell angioma is a rare primary splenic tumor that is difficult to differentiate preoperatively from other benign and malignant splenic lesions and may have immunogenic origins. Preoperative ultrasound and computed tomographic scan showed that our patient's lesion was solitary and localized. Total splenectomy is usually required because littoral cell angioma is generally large and/or diffuse.

Cystic dysplasia of the rete testis.

Cystic dysplasia of the rete testis is a rare benign testicular tumor that is found mainly in the pediatric population and that must be distinguished from malignant lesions. Ultrasonography can aid in diagnosis and in evaluation for associated renal lesions. Treatment options include orchiectomy, testicular-sparing excision of the cystic mass, and nonoperative surveillance.

Cytomegalovirus enterocolitis complicated by perforated appendicitis in a premature infant.

A 9-week-old, former 30-week estimated gestational age premature infant had recurrent episodes of abdominal distention. Laparotomy revealed partial small bowel obstruction caused by ileocecal inflammation with stenosis, and a perforated appendix with fistulization into the cecum. The resected appendix and ileocecal junction showed intranuclear and intracytoplasmic viral inclusions, and were cytomegalovirus positive by immunoperoxidase staining, which implicated cytomegalovirus as the etiology of the recurring bouts of enterocolitis with appendicitis.

Sliding indirect hernia containing both ovaries.

Although sliding indirect inguinal hernias containing the ipsilateral ovary and fallopian tube are not uncommon in infant girls, sliding hernias containing both ovaries are rare. This report describes a large indirect inguinal hernia in a 1-year-old infant girl that contained the left uterine fundus, left bladder ear, as well as both ovaries and fallopian tubes.

Spontaneous infarction of fibroadenoma in an adolescent girl.

A 12-year-old pre-menarcheal girl presented with a solitary breast mass and bloody nipple discharge. Ultrasonography showed an unusual mass with complex characteristics, composed of a frondular structure within a 2.3 x 1.