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Lessons of the month: Massive gastrointestinal bleeding in a young woman with idiopathic thrombocytopenic purpura (ITP)

Ksheetij Kothari, Mallikarjun Patil, Renuka Malipatel and Harshad Devarbhavi
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DOI: https://doi.org/10.7861/clinmed.2020-0803
Clin Med January 2021
Ksheetij Kothari
ASt John's Medical College Hospital, Bangalore, India
Roles: senior resident
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Mallikarjun Patil
BSt John's Medical College Hospital, Bangalore, India
Roles: professor
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  • For correspondence: drmalli_arjun@yahoo.co.in
Renuka Malipatel
CSt John's Medical College Hospital, Bangalore, India
Roles: assistant professor
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Harshad Devarbhavi
DSt John's Medical College Hospital, Bangalore, India
Roles: professor and head of department of gastroenterology
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ABSTRACT

Cytomegalovirus (CMV) is a ubiquitous pathogen, belongs to the herpes virus family and can infect the gastrointestinal (GI) system. The disease is usually noted in immunocompromised patients such as solid organ transplant recipients on immunosuppressive drugs, patients with malignancy receiving chemotherapy, patients with AIDS, patients on steroids for autoimmune disorders, and is rarely seen in immunocompetent individuals. In the GI system, CMV most commonly involves the colon, followed by oesophagus, stomach and, rarely, the small intestine. The GI manifestation of CMV infection is usually anorexia, diarrhoea, and blood in stools, abdominal pain and fever. Very rarely, CMV infection may present with a massive GI bleed. We report a case of 36-year-old pregnant woman with idiopathic thrombocytopenic purpura (ITP) who presented with massive GI bleeding following delivery, attributed to isolated CMV enteritis.

KEYWORDS:
  • cytomegalovirus
  • enteritis
  • massive gastrointestinal bleeding

Case presentation

A 36-year-old woman, 34 weeks pregnant, presented with bleeding from her vagina. She was diagnosed with idiopathic thrombocytopenic purpura (ITP) and was taking steroids (prednisolone 10 mg/day) for the previous 5 months. On examination, she was haemodynamically stable and had evidence of fetal distress, so she was then taken for emergency lower segment caesarean section. Intraoperatively, she was found to have placenta accreta and required a hysterectomy to control the bleeding.

On postoperative day 16, she developed fresh blood from her rectum. There was no history of abdominal pain, diarrhoea, fever nor intake of non-steroidal anti-inflammatory drugs (NSAIDs). There was no history suggestive of epistaxis, gum bleeding, haematuria or skin rash. Her medication history included prednisolone 10 mg/day and pantoprazole. On clinical examination, she was afebrile, blood pressure of 110/70 mmHg, pulse rate of 80 beats per minute and respiratory rate of 18 breaths per minute. She had mucosal pallor and no petechiae on the skin. Her abdomen was soft and non-tender with normal bowel sounds. A digital rectal examination revealed fresh blood. Laboratory parameters showed haemoglobin (Hb) of 8 g/dL (drop by 2 g), platelet count 86 × 109/L and total leukocyte count of 7.8 × 109/L. Coagulation profile and liver function tests were normal. An upper gastrointestinal (GI) endoscopy appeared normal until the third part of the duodenum and colonoscopy examination showed fresh blood in the ileum with normal-appearing colonic mucosa suggestive of source of bleeding proximal to ileum and distal to duodenum. Post-procedure, she developed hypotension with passage of massive amount of fresh blood. She was transferred to the intensive care unit and resuscitated with intravenous fluid therapy and packed cell transfusion. Her blood investigations revealed low Hb (4 g/dL) and platelet count was 90 × 109/L. Computed tomography (CT) angiography did not reveal a source of bleeding. She continued to have GI bleeding with haemodynamic instability despite resuscitative measures, hence subjected to emergency laparotomy with intraoperative enteroscopy. Enteroscopy showed a large amount of fresh blood in the distal jejunum and proximal ileum with multiple, discrete, actively bleeding ulcers (Fig 1). The diseased segment was resected (80 cm) and end-to-end anastomosis was done.

Fig 1.
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Fig 1.

Enteroscopy showing multiple, discrete ulcers in jejunum (arrows).

Gross examination of resected small bowel revealed large punched-out ulcers (Fig 2). On histopathological examination, characteristic intranuclear owl's eye inclusion bodies were seen in endothelial and stromal cells suggesting cytomegalovirus (CMV) infection (Fig 3). The serum CMV polymerase chain reaction test revealed viraemia (2,000 copies/mL). She was treated with intravenous ganciclovir 300 mg every 12 hours and an additional 3 units of packed cell and platelet transfusion. Although bleeding was controlled, her general condition deteriorated due the development of multi-organ failure. She died 5 days after surgery despite antiviral therapy and other supportive care.

Fig 2.
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Fig 2.

Resected part of small bowel showing punched out ulcers (arrows).

Fig 3.
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Fig 3.

Haematoxylin and eosin stain showing ulceration, granulation tissue and enlarged stromal cells with characteristic intranuclear owl's eye inclusion bodies. a) Magnification × 400. b) Magnification × 1,000.

Discussion

Our patient had obscure overt gastrointestinal bleeding (bleeding from unknown source after standard endoscopy, colonoscopy and radiological imaging).1 The common causes in young individuals are small bowel ulcers due to inflammatory bowel disease, NSAIDs intake and small bowel tumours (such as gastrointestinal tumours (GIST), lymphoma, neuroendocrinal tumours and carcinoma), Meckel's diverticulum, Dieulafoy's lesion and telangiectasia.2 After the negative standard endoscopy and colonoscopy examination, further investigations to ascertain the source of bleeding include CT angiography to rule out a structural cause. If the CT is normal, further evaluation includes capsule endoscopy and push enteroscopy in haemodynamically stable individuals. Rarely in haemodynamically unstable patients (as with our patient), when CT doesn't reveal the cause and the requirement of surgical resection is imminent, intraoperative enteroscopy is required to ascertain the source of bleeding and surgical treatment can be done at the same time.3

Primary CMV infection is usually acquired in the first 20 years of life, which is either asymptomatic or may have self-limiting mononucleosis (such as symptoms in immunocompetent individuals).4 Following primary infection, CMV remains dormant in host tissue in harmony with host immunity and gets reactivated with suppressed immune response. The CMV infection of the gastrointestinal tract is usually due to reactivation of the dormant CMV due to immunosuppression and rarely due to superinfection of the diseased GI tract, like in inflammatory bowel disease. CMV can infect any part of GI system from oesophagus to rectum, but commonly involves colon (55%), oesophagus and stomach (40%) and, rarely, the small intestine (4.3%).5

CMV infects vascular endothelial cells and surface epithelium of the small bowel and causes sub-epithelial haemorrhages, erosions, and superficial and deep ulcers which manifest with persistent diarrhoea, weight loss, obscure GI bleeding, intestinal obstruction, perforation and, rarely, massive GI bleeding.6 The pathogenesis of massive GI bleeding is due to vasculitis, vascular erosion and deep ischaemic ulcers. There are few case reports of massive GI bleeds due to CMV enteritis in literature.7–10 In most of the published cases, patients were immunocompromised. Diagnosis of CMV enteritis is difficult due to non-specific presentation and requirement of enteroscopy for histopathological diagnosis. Presence of CMV inclusion bodies is considered to be diagnostic. In our patient, diagnosis was done on basis of histopathological examination of a surgically resected specimen which showed presence of CMV inclusion bodies. Ganciclovir therapy is the treatment of choice. For massive GI bleeds, surgical resection is to be considered if embolisation therapy is not feasible/fails.

Conclusion

CMV enteritis can rarely present as massive GI bleed. It needs to be suspected as one of the causes of GI bleed in immune-compromised patients and needs to be confirmed by enteroscopy. Early initiation of anti-viral therapy may avert the need for surgery. Delayed diagnosis increases morbidity and mortality.

  • © Royal College of Physicians 2021. All rights reserved.

References

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    , Perera MT, Olliff S, et al. Cytomegalovirus ileitis causing massive gastrointestinal haemorrhage in a patient following hepatic resection. Trop Gastroenterol 2011;32:145–7.
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Lessons of the month: Massive gastrointestinal bleeding in a young woman with idiopathic thrombocytopenic purpura (ITP)
Ksheetij Kothari, Mallikarjun Patil, Renuka Malipatel, Harshad Devarbhavi
Clinical Medicine Jan 2021, 21 (1) e100-e102; DOI: 10.7861/clinmed.2020-0803

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Lessons of the month: Massive gastrointestinal bleeding in a young woman with idiopathic thrombocytopenic purpura (ITP)
Ksheetij Kothari, Mallikarjun Patil, Renuka Malipatel, Harshad Devarbhavi
Clinical Medicine Jan 2021, 21 (1) e100-e102; DOI: 10.7861/clinmed.2020-0803
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