Case Report: 55 year old man with fever and pelvic pain

History of Presenting Illness:

55 year old man with insulin-requiring diabetes mellitus and diabetic polyneuropathy with right foot ulcer presents to the Emergency Department with pain in the suprapubic area radiating into the rectum and shaking chills.

  • He went in a river to fish 4 weeks ago and developed a blister around his diabetic ulcer; it swelled up but there was no obvious purulence.
  • About 4 weeks ago, he developed fever and chills and thought he was coming down with a cold; symptoms gradually subsided after 3 days.
  • 4 days prior to presentation, he noted onset of fatigue.
  • The next day, he noticed the onset of fever and chills.
  • The day of admission, he developed fullness in the bladder and deep pelvis. He decided to go in, because he thought he might need antibiotics.

Review of Systems: Gen: +fevers, chills; GI: no nausea, vomiting or diarrhea Lungs; no cough or shortness of breath, 12 point other than above was negative

Past Medical History:

  1. Diabetes mellitus with polyneuropathy – prior surgery on left foot 2 years ago. Last A1c was 10.0 one month ago
  2. Hypertension
  3. Hyperlipidemia
  4. Recent admission for ulcer debridement in setting of acute cellulitis (right foot) – 2 months ago; Group B Strep grew on culture. He had prior exposure to keflex
  5. Rosacea, papulopustular – he mentions that 3 days before he became ill, he saw a pustule on his lid and expressed it. He uses clindagel and topical hydrocortisone

Social: No smoking or alcohol; he quit smoking after recent hospital visit

Fam HX: noncontributory

Meds:

  1. Lantus insulin 60 units daily
  2. Novolog 15 units pre meal with sliding scale adjustment
  3. Lisinopril 20mg daily
  4. Atorvastatin 20mg qhs

All: sulfa

Physical Examination

VS: T 102.3, HR 115, BP 100/50, Resp 16 bpm, Pulse ox 98% room air

Gen: Appears acutely ill, moderate distress from suprapubic and posterior pain

HEENT: No thrush or ulcers; Lymph: no axillary, cervical or supraclavicular LAD. Neck: Supple, nonrigid, trachea midline

Chest: Hs1s2, tachycardia, no murmur, click, rubs or gallops; Lungs: no wheezes, rales or rhonchi

Abd: suprapubic tenderness suggested, Rectal: Declined.

Extremities: Right foot: dry, calloused diabetic foot ulcer, slightly malodorous, no evidence of expressible fluctuance or erythema on examination.

Neuro: Cranial nerves 2-12 intact, non-focal

Laboratory and Radiographic Investigation:

  • Wbc: 25,000, Neutrophils 85%, Lymphoctyes 10%
  • H/H: 12/36, Platelet 95,000
  • Chemistry: BUN 26, Creatinine 1.2
  • LFT: AST 200, ALT 150, Alk phos 159
CT Abdomen and pelvis

Discussion Questions:

Question 1: What does this CT scan show?

Question 2: The patient was found to have 6/6 positive blood cultures for an organism that was also found in his urine culture (spoiler below). Given his particular presentation, which microorganism is likely to be the cause?

Question 3: The patient is hospitalized for this presentation. Which antibiotic(s) would be appropriate to start with?

You can find the answers here.

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