BACKGROUND Primary tumors in the presacral (retrorectal) space are extremely rare in adults, with an estimated incidence of 0.0025 to 0.014 in large referral centers. Congenital varieties are most common and comprise two thirds of these tumors. Primary retroperitoneal sarcomas in the pelvic region are extremely rare. We report the ultrasound and the corresponding Computed Tomography (CT) featur...

Introduction: Bile ducts hamartoma (von Meyenburg complexes) is a common but unknown pathology of the liver. It can lead to widening bile ducts. usually detected incidentally in asymptomatic patients. There are indications transformation into duct cancer or hepatocellular carcinoma.Aim study: The aim study draw attention little known, - von complexes and sensitize medical professionals implicat...

OBJECTIVE Retrorectal tumours are rare lesions in adults. The diagnosis of retrorectal lesion is often difficult and misdiagnosis is common. We present significant number of cases in view of scarce information available on this matter. METHODS 14 patients were treated at Vilnius university hospital "Santariskiu klinikos" Centre of abdominal surgery from 1997 to 2010. The case notes of patient...

composed of varying proportions of mesenchymal tissues including cartilage, fat, epithelial, and connective tissue combined with entrapped respiratory epithelium (1). Pulmonary hamartomas are the most common benign neoplasms of the lung, accounting for 7-14% of benign solitary pulmonary nodules (1, 2). Pulmonary hamartomas are most commonly presented as incidental lung nodules found on a routin...

BACKGROUND Folliculosebaceous cystic hamartoma (FSCH) is a rare cutaneous hamartoma consisting of dilated folliculosebaceous units invested in mesenchymal elements. These lesions have a striking predilection for the central face and scalp of adults. The vast majority of lesions present as 0.5-1.5-cm papules or exophytic nodules. A single case of giant FSCH has been reported on the upper back. ...

Congenital mesoblastic nephroma is a stromal neoplasm of infancy. It has been referred to as mesenchymal, cystic or leiomyomatous hamartoma. These tumors are centered around the hilus of the kidney. Mesoblastic nephromas need to be distinguished from other pediatric renal neoplasms as these lesions are treated by complete surgical excision without chemotherapy unless gross residual tumor remain...

Mesenchymal liver hamartomas are benign tumors that can cause life-threatening abdominal distension and carry a risk for malignant transformation. In this case report, we describe a 13-month-old male with Beckwith-Wiedemann Syndrome (BWS) who presented with multiple mesenchymal liver hamartomas causing severe intra-abdominal mass effect. Imaging revealed six large multi-locular cystic lesions, ...

BACKGROUND Hamartoma of the thoracic wall is a rare benign tumor that occurs in infancy and can be mistaken for a malignancy due to its clinical and imaging features. Hamartomas are extrapleural soft tissue lesions that cause rib expansion and destruction and appear on imaging as cystic areas with fluid levels and calcification. They can cause scoliosis, pressure on the neighboring lung parench...