Key diagnostic features of fever of unknown origin: Medical history and physical findings.

Background: Fever of unknown origin (FUO) has many possible causes, so detailed history taking and physical examination are required. We identified key diagnostic features of medical history and physical findings for an efficient diagnosis of FUO.

Methods: A total of 42 consecutive patients (mean age: 50.

A case of amebiasis with negative serologic markers that caused intra-abdominal abscess.

A 23-year-old Japanese woman presented with abdominal distention following fever, diarrhea, and abdominal pain during a stay in Taiwan. Serology for the detection of amebic-antibodies and stool microscopic examination were both negative. A computed tomography scan showed a 13 cm diameter abscess spreading from the lower abdominal wall to the pelvic retroperitoneal space.

Successful surgical intervention for rectal perforation due to polyarteritis nodosa: report of a case.

Background: Polyarteritis nodosa (PAN) is a primary systemic necrotizing vasculitis with diffuse organ involvements, resulting in a high mortality rate due to multiple organ failure. Although the small bowel is the frequently targeted organ of PAN-associated vasculitis, rectal involvement is very rare, and only one case of rectal bleeding has been previously reported. The mortality rate of PAN with gastrointestinal (GI) perforation is reportedly much higher than that of without severe GI involvement.

[A Serious Case of Pseudomembranous Colitis in which Treatment with Endoscopic Vancomycin Sprinkling Got a Good Result].

We report herein on a 71-year-old man who developed pseudomembranous colitis (PMC). He was treated with oral metronidazole and vancomycin prescription, but deteriorated, and developed a toxic megacolon. Under paralytic ileus condition, per os and enema treatment efficacy was thought to be limited.