Publications by authors named "Johanna Aronniemi"

Background: Intra-abdominal lymphatic malformations (LMs) are relatively rare congenital anomalies and can be divided into intra- and retroperitoneal subgroups. This study aims to evaluate the outcomes after surgical resection of intraperitoneal LMs in children.

Methods: The records of all patients ≤16 years of age with intraperitoneal LMs managed at our tertiary center between 2007-2022 were reviewed.

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Background: Sporadic venous malformation (VM) and angiomatosis of soft tissue (AST) are benign, congenital vascular anomalies affecting venous vasculature. Depending on the size and location of the lesion, symptoms vary from motility disturbances to pain and disfigurement. Due to the high recurrence of the lesions, more effective therapies are needed.

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Article Synopsis
  • A study was conducted to analyze the long-term outcomes of proximal humeral fractures in adolescents and compare them to age-matched controls after treatment.
  • Data were collected from 209 patients treated between 1995 and 2005, with follow-up assessments focusing on various shoulder function outcomes, including the DASH questionnaire and Simple Shoulder Test.
  • Results indicated that long-term outcomes for these patients were generally positive, showing no significant functional differences compared to a normal population, and no treatment advantages for surgical versus non-surgical options.
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Introduction: Venous malformations (VMs) are congenital low-flow lesions with a wide spectrum of clinical manifestations. An increasing number of studies link VMs to coagulation abnormalities, especially to elevated D-dimer and decreased fibrinogen. This condition, termed localized intravascular coagulopathy (LIC), may pose a risk for hemostatic complications.

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This case of congenital tuberculosis (TB) emphasizes that TB should be suspected in newborns whose parents are from areas with high incidence of TB or who present with symptoms of an infection unresponsive to wide-spectrum antibiotics.

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Background: Intra-articular venous malformations of the knee are an uncommon cause of unilateral knee pain in children. Timely diagnosis is important because lesions with intrasynovial involvement can lead to joint space hemorrhage and secondary cartilage damage.

Objective: To describe our tertiary center's experience of diagnostics and typical magnetic resonance imaging (MRI) findings.

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Objectives: To review our clinical experience and characteristics of Finnish patients with plunging ranula and compare our results with reports from other populations.

Design: A retrospective study from the electronic hospital records between 2005 and 2016.

Setting: The Department of Otorhinolaryngology and Head and Neck Surgery of Helsinki University Hospital, Finland.

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Article Synopsis
  • The study aims to enhance treatment for extremity low-flow vascular malformations by examining histology and imaging of venous malformations (VMs) that didn’t improve after sclerotherapy.
  • Out of 102 patients treated with sclerotherapy, 19 underwent surgery due to inadequate response, with a notable prevalence of angiomatosis of soft tissue (AST) among lower-extremity intramuscular lesions.
  • The findings highlight the importance of histological analysis in distinguishing between AST and VMs, as they can appear similar on imaging, which is crucial for effective treatment decisions.
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Background Sclerotherapy is often the primary treatment for peripheral venous malformations. It is mostly sufficient alone, but can be combined with other endovascular techniques. Despite its mini-invasiveness, it is not without potentially severe complications.

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Sclerotherapy is one treatment option for head and neck venous malformations (VMs). Evaluation of complication risks is, however, essential to improve its safety. We aimed to systematically report sclerotherapy complications by means of the Clavien-Dindo classification and to distinguish factors predisposing to complications.

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Objective: To analyze the spectrum of testicular tumors in children in an unselected population-based series, as well as the results of testis-preserving surgery.

Patients And Methods: Our hospital database was analyzed for operations for testicular tumors from 1981 to 2006. The clinical data and findings during follow up (4.

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