Acute renal failure and arterial hypertension due to subcapsular haematoma: is percutaneous drainage a feasible treatment?

A Rare Case of Page Kidney With Superimposed Infection

Page kidney (PK) is a rare renal condition characterized by external compression of the kidney, typically by a subcapsular hematoma, leading to resistant secondary hypertension due to hypoperfusion and ischemia. This hypertension is caused by the external compression of the kidney by a chronic subcapsular hematoma that activates the renin-angiotensin-aldosterone system (RAAS) system. Hematoma formation can result from external or internal trauma. The resolution of the hematoma can take months, and, in some cases, may necessitate a nephrectomy. Unresolved subcapsular hematomas can be complicated by infection, leading to sepsis, hospitalization, and the need for surgical drainage. This report presents a unique case of a 67-year-old female with a spontaneous left renal subcapsular hematoma that did not resolve with conservative measures and was complicated by superimposed infection requiring percutaneous drainage.

Bilateral Page kidney in a postpartum female: a case report

Page kidney results from external compression of the kidney by a subcapsular hematoma and is one of the rare but treatable causes of secondary hypertension. The majority are traumatic or iatrogenic and often unilateral. Spontaneous bilateral Page kidney is rare.

Case Presentation

A 35-year P1 with gestational hypertension presented with a persistent postpartum elevation of blood pressure (BP). Imaging studies revealed bilateral renal subcapsular hematoma (left>right). She was managed with an angiotensin receptor blocker initially and ultrasound-guided percutaneous drainage of the collection for the optimal control of elevated BP.

Clinical Discussion

Ultrasonography and computed tomography of the kidneys are the most frequently used for diagnosing a Page kidney. Medical management with antihypertensive and regular follow-ups form the first line of treatment in Page kidneys. Percutaneous drainage, surgical decortication, laparoscopic intervention, and nephrectomy are necessary in cases of organized late hematomas.

Conclusion

Spontaneous bilateral Page kidney is a rare but potentially treatable and curable form of hypertension. Percutaneous drainage is an effective method to drain the hematoma and control elevated BP.

Osteonecrosis of Femoral Head is Associated with Congenital Multiple Pituitary Hormone Deficiency: Report of Three Cases and Literature Review

Objective: Pituitary hormones are critical for bone development and maturation. It is currently unknown whether congenital multiple pituitary hormone deficiency (CMPHD) is associated with osteonecrosis of femoral head (ONFH). Methods: Clinical presentations and hormonal profiles of three patients with CMPHD and ONFH were retrospectively described. The incidence of ONFH in this population was studied. Results: (1) Congenital hypopituitarism was diagnosed in three patients. Femoral epiphyseal fusion in these patients was markedly delayed, and they had very low bone mineral density. (2) Hip pain, which is the main presentation of ONFH, occurred at the age of 20-30 years. ONFH induced by excessive glucocorticoids was excluded. (3) The estimated incidence of ONFH was approximately 694:100,000. Conclusions: CMPHD, especially a lack of growth and sex hormones, may contribute to ONFH.

Genetic variants associated with Hermansky-Pudlak syndrome

Hermansky-Pudlak syndrome (HPS) is a rare autosomal recessive disorder characterized by defective biogenesis of lysosome-related organelles. Clinical manifestations include a bleeding diathesis due to a platelet delta storage pool deficiency, oculocutaneous albinism, inflammatory bowel disease, neutropenia, and pulmonary fibrosis. Ten genes associated with HPS are identified to date, and each gene encodes a protein subunit of either Biogenesis of Lysosome-related Organelles Complex (BLOC)-1, BLOC-2, BLOC-3, or the Adaptor Protein-3 complex. Several genetic variants and phenotypic heterogeneities are reported in individuals with HPS, who generally exhibit easy bruisability and increased bleeding. Desmopressin, pro-coagulants, or platelet transfusion may be used as prophylaxis or treatment for excessive bleeding in patients with HPS. However, response to desmopressin can be variable. Platelets are effective in preventing or treating bleeding in individuals with HPS, but platelets should be transfused judiciously to limit alloimmunization in patients with HPS who are at risk of developing pulmonary fibrosis and may be potential candidates for lung transplantation. The discovery of new genes associated with HPS in people with excessive bleeding and hypopigmentation of unknown etiology may be facilitated by the use of next-generation sequencing or panel-based genetic testing.