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Very atypical presentation of a retroperitoneal "atypical lipoma". A well differentiated liposarcoma presenting as sciatic hernia. 2007

Alessandro Cappellani, and Antonio Zanghì, and Maria Di Vita, and Domenico La Porta, and Giovanni Alfano, and Alessio Francesco D'Angelo
Dipartimento di Chirurgia, Cattedra di Chirurgia Generale, Sezione di Chirurgia Generale e Senologia, dell'Università di Catania.

Unlike hernias and neoplasms of any other body site, the sciatic hernia is uncommon and the finding of an atypical lipoma in it is probably unique. In such instance making the correct diagnosis is paramount in order to perform a procedure with a radical intent. A CT scan must be considered any time a rare form of hernia is observed and the surgical treatment of a retroperitoneal lipoma has to be radical, to prevent a recurrence. This is the strategy followed by the authors in a case of a 53 year old lady presenting with a large retroperitoneal lipomatous neoplasm within a sciatic hernia.

UI MeSH Term Description Entries
D008067 Lipoma A benign tumor composed of fat cells (ADIPOCYTES). It can be surrounded by a thin layer of connective tissue (encapsulated), or diffuse without the capsule. Fatty Tumor,Hibernoma,Lipoma, Pleomorphic,Atypical Lipoma,Lipomata,Lipomatosis, Multiple,Atypical Lipomas,Fatty Tumors,Hibernomas,Lipoma, Atypical,Lipomas,Lipomas, Atypical,Lipomas, Pleomorphic,Lipomatas,Lipomatoses, Multiple,Multiple Lipomatoses,Multiple Lipomatosis,Pleomorphic Lipoma,Pleomorphic Lipomas,Tumor, Fatty,Tumors, Fatty
D008080 Liposarcoma A malignant tumor derived from primitive or embryonal lipoblastic cells. It may be composed of well-differentiated fat cells or may be dedifferentiated: myxoid (LIPOSARCOMA, MYXOID), round-celled, or pleomorphic, usually in association with a rich network of capillaries. Recurrences are common and dedifferentiated liposarcomas metastasize to the lungs or serosal surfaces. (From Dorland, 27th ed; Stedman, 25th ed) Liposarcoma, Dedifferentiated,Liposarcoma, Pleomorphic,Atypical Lipomatous Tumor,Liposarcoma, Well Differentiated,Well Differentiated Liposarcoma,Atypical Lipomatous Tumors,Dedifferentiated Liposarcoma,Dedifferentiated Liposarcomas,Lipomatous Tumor, Atypical,Liposarcomas,Pleomorphic Liposarcoma,Pleomorphic Liposarcomas,Well Differentiated Liposarcomas
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006547 Hernia Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the ABDOMINAL WALL or the respiratory DIAPHRAGM. Hernias may be internal, external, congenital, or acquired. Enterocele,Hernias
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012186 Retroperitoneal Neoplasms New abnormal growth of tissue in the RETROPERITONEAL SPACE. Neoplasm, Retroperitoneal,Neoplasms, Retroperitoneal,Retroperitoneal Neoplasm
D012584 Sciatic Nerve A nerve which originates in the lumbar and sacral spinal cord (L4 to S3) and supplies motor and sensory innervation to the lower extremity. The sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. It has two major branches, the TIBIAL NERVE and the PERONEAL NERVE. Nerve, Sciatic,Nerves, Sciatic,Sciatic Nerves
D016896 Treatment Outcome Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series. Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes

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