Rupture spontanée de la rate sur sarcome de Kaposi intrasplénique chez un patient séropositif pour le VIH

Splenic Kaposi’s sarcoma in a human immunodeficiency virus-negative patient: A case report

BACKGROUND

Kaposi’s sarcoma (KS) is a malignancy that usually affects the skin of the lower extremities, and may involve internal organs. It originates from the vascular endothelium. It is well known that the development of KS is associated with human herpes virus 8 (i.e. HHV8) infections. Sporadic KS cases have mainly been found in Africa. Isolated splenic KS in Asia has rarely been reported. We present here a case of KS primarily involving the spleen in a human immunodeficiency virus (HIV)-negative Chinese patient.

CASE SUMMARY

A 50-year-old male patient was admitted to hospital due to abdominal distension and discomfort, reduced food intake and weight loss. Medical examination revealed that the patient had moderate anemia, a low platelet count, slight fatty liver and a huge mass in the spleen. Spleen lymphoma was considered. An anti-HIV test was negative. The whole spleen was surgically excised. The final pathological diagnosis was nodular stage spleen KS, and the patient underwent total splenectomy. He recovered well and was discharged from hospital 12 d after surgery. Two weeks later, the patient developed liver metastasis and died within 1 mo after surgery.

CONCLUSION

KS is difficult to diagnose and pathological examination is necessary. KS has a poor prognosis and should be diagnosed and treated early to improve survival.

613 cases of splenic rupture without risk factors or previously diagnosed disease: a systematic review

BACKGROUND

Rupture of the spleen in the absence of trauma or previously diagnosed disease is largely ignored in the emergency literature and is often not documented as such in journals from other fields. We have conducted a systematic review of the literature to highlight the surprisingly frequent occurrence of this phenomenon and to document the diversity of diseases that can present in this fashion.

METHODS

Systematic review of English and French language publications catalogued in Pubmed, Embase and CINAHL between 1950 and 2011.

RESULTS

We found 613 cases of splenic rupture meeting the criteria above, 327 of which occurred as the presenting complaint of an underlying disease and 112 of which occurred following a medical procedure. Rupture appeared to occur spontaneously in histologically normal (but not necessarily normal size) spleens in 35 cases and after minor trauma in 23 cases. Medications were implicated in 47 cases, a splenic or adjacent anatomical abnormality in 31 cases and pregnancy or its complications in 38 cases. The most common associated diseases were infectious (n = 143), haematologic (n = 84) and non-haematologic neoplasms (n = 48). Amyloidosis (n = 24), internal trauma such as cough or vomiting (n = 17) and rheumatologic diseases (n = 10) are less frequently reported. Colonoscopy (n = 87) was the procedure reported most frequently as a cause of rupture. The anatomic abnormalities associated with rupture include splenic cysts (n = 6), infarction (n = 6) and hamartomata (n = 5). Medications associated with rupture include anticoagulants (n = 21), thrombolytics (n = 13) and recombinant G-CSF (n = 10). Other causes or associations reported very infrequently include other endoscopy, pulmonary, cardiac or abdominal surgery, hysterectomy, peliosis, empyema, remote pancreato-renal transplant, thrombosed splenic vein, hemangiomata, pancreatic pseudocysts, splenic artery aneurysm, cholesterol embolism, splenic granuloma, congenital diaphragmatic hernia, rib exostosis, pancreatitis, Gaucher's disease, Wilson's disease, pheochromocytoma, afibrinogenemia and ruptured ectopic pregnancy.

CONCLUSIONS

Emergency physicians should be attuned to the fact that rupture of the spleen can occur in the absence of major trauma or previously diagnosed splenic disease. The occurrence of such a rupture is likely to be the manifesting complaint of an underlying disease. Furthermore, colonoscopy should be more widely documented as a cause of splenic rupture.

Atraumatic splenic rupture: an unusual manifestation of acute HIV infection

A 27-year-old white male, who had sex with other men, presented to the emergency department with 3 days of left shoulder and abdominal pain. He reported no history of trauma to the abdomen. On abdominal imaging, he was found to have hemoperitoneum from a ruptured spleen; he underwent splenectomy. Causes of atraumatic splenic rupture can be divided into six main categories: infectious, neoplastic, inflammatory, congenital or structural, iatrogenic, and idiopathic. Work-up of the atraumatic splenic rupture revealed that his HIV antibody was newly positive. He had a documented negative HIV antibody 3 weeks prior to the current admission. CD4 cell count, obtained after splenectomy, was 904 cells per microliter and the HIV-1 plasma RNA level was 4657 copies per milliliter. Spleen pathology demonstrated an enlarged spleen with increase in the number of small to intermediate size lymphoid cells in the red pulp, and reactive follicular lymphoid hyperplasia, with numerous secondary lymphoid follicles and reactive germinal centers in the white pulp. T-cell receptor (TCR) gene rearrangement studies demonstrated a positive TCR beta gene rearrangement, without a TCR gamma gene rearrangement, consistent with a clonal CD8(+) T-cell population. The case gives rare insight into what happens in the spleen during acute HIV infection and encourages HIV testing in those presenting with atraumatic splenic rupture. Counseling patients with acute HIV to avoid potential trauma should also be considered.