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The coexistence of a cystadenoma with an ectopic pregnancy in the same fallopian tube is extremely rare. A 30-year-old gravid woman exhibited increasing human chorionic gonadotropin concentrations. Intramuscular methotrexate therapy was administered and ectopic precautions were taken. The patient eventually underwent diagnostic laparoscopy. After pathologic review, an ectopic pregnancy and serous cystadenoma were identified in the left fallopian tube., (Copyright © 2010 AAGL. Published by Elsevier Inc. All rights reserved.)

Diagnostic features of glycogenic acanthosis of the esophagus on air-contrast radiography, endoscopy, and histopathologic studies in 10 selected cases are presented. Glycogenic acanthosis of the esophagus is a common benign entity, characterized by multifocal plaques of hyperplastic squamous epithelium with abundant intracellular glycogen deposits. At esophagoscopy or on autopsy specimens these lesions appear as slightly raised grey-white plaques which are usually 2-10 mm in diameter and may be confluent. They cause a finely nodular or cobblestone mucosal pattern demonstrable on double-contrast views of the well-distended esophagus. The findings are not associated with mucosal ulcerations, luminal narrowing, or mobility disturbance, although some patients may have coexistent hiatal hernia and gastroesophageal reflux.

Two benign ovarian cystic teratomas, each containing a partial human body-like structure (homunculus), are described. One was found in a 30-year-old woman, and the second occurred in a prepubertal 10-year-old girl. Each of the 2 homunculi resembled the lower half of a miniature human body with buttocks, a pair of legs with recognizable feet, and a phallus-like structure in the anterior midline. A relatively well-developed osteocartilagenous skeleton was identified in each of the specimens. The literature pertaining to these so-called fetiform teratomas is reviewed. Only 17 previous cases have been described or mentioned in the English-language literature.

Aspergillosis of the central nervous system is rare. It most commonly occurs in patients with long-standing immunosuppression. To our knowledge this is the first reported case describing the magnetic resonance imaging (MRI) findings in cerebral aspergillosis. The computed tomography (CT) scan findings are also included.

A case of significant hemorrhage into an ileal wall periappendiceal abscess in a 62-year-old man is described. Pathologic correlation of an unusual collection of contrast seen at the distal end of a branch of the ileocolic artery during angiography is discussed and illustrated.

This article describes a series of 12 adult patients in whom a prominent and mobile polypoid fold of the oesophagogastric region was demonstrated radiologically. Subsequent endoscopic and histopathologic studies confirmed the presence of an inflammatory pseudopolyp at the squamocolumnar junction and contiguous with a thick gastric rugal fold. The clinical and radiographic features of this entity and the mechanisms of its formation are reviewed.

The authors recently encountered a patient with omental anisakiasis who presented with features of acute appendicitis and who made an uneventful recovery following resection of an inflammatory omental mass containing the larva(e). Anisakiasis refers to infestation of humans by species of marine nematode larvae belonging to the subfamily Anisakinae. Although this condition is rarely reported in the United States, it has been well described both in Holland and in the Orient. Several publications in the Japanese literature have detailed the morphology of the parasite and the clinical symptoms of infestation. The source of infestation is most often raw or uncooked fish, the latter widely enjoyed as a foodstuff in the Orient, but less popular in the United States. With the growing popularity of "sushi" bars and the increasing numbers of Americans developing a taste for raw fish, this condition may become more prevalent in the future.

True uterine diverticulum is an exceedingly rare entity. We report only the second case, to our knowledge, of a nulliparous uterus containing a diverticulum communicating with the endometrial cavity. True uterine diverticula probably arise from a localized duplication of the distal Müllerian duct on one side. They may be confused pathologically with uterine sacculations of pregnancy, but tend to have thicker walls. Associated conditions include "ectopic" pregnancy in the diverticulum, dysmenorrhea, and abnormal uterine bleeding.