Intercostal neuralgia caused by a parosteal lipoma of the rib

Parosteal lipoma is an extremely rare benign tumor that is composed mainly of mature adipose tissue, and it has an intimate relationship to the underlying periosteal bone. We believe that only three cases have been previously reported that have described parosteal lipoma of the rib. Although parosteal lipoma is asymptomatic, motor and sensory function deficits have been reported that were caused by the tumor compressing the neuromuscular bundles in the proximal forearm and the sciatic nerve. We present here an exceedingly rare case of intercostal neuralgia caused by a parosteal lipoma of the rib.     

Intraosseous Lipoma of the Calcaneus: Report of a Case and a Short Review of the Literature

One case of an intraosseous lipoma of the calcaneus bone is presented together with a short review of the literature. Only 20 cases of tumors in the extremities have so far been published. The typical X-ray picture shows a cystic, sharply demarcated cavity, which macroscopically at operation is filled with yellowish, adipose tissue. in the present case and one previously published a central sclerotic mass was observed. The histological picture is typical, with mature adipose tissue mixed with a few degenerated bone trabeculae.     

A case of intraosseous lipoma in the frontal bone

A case of intraosseous lipoma in the frontal bone was reported. A 62-year-old woman had a hard tumor affecting the right frontal bone. The slowly growing tumor was first noticed when she was in her late teens. The completely excised right frontal lesion was composed of mature adipose tissue with abundant fibrous stroma. Intraosseous lipoma affecting the skull is extremely rare, with only 17 cases having been reported previously. Presurgical diagnosis of intraosseous lipoma of the skull is difficult because of its non-specific radiological features. Pathological study is indispensable for a correct diagnosis.     

Sphenoclival intraosseus lipoma: case report and literature review.

Objective: To present the case of a rare tumor in the sphenoidoclival area and discuss potential pitfalls in diagnosis and management. Design: Case report with literature review. Setting: Tertiary referral center. Case Summary: Our patient presented with headache, vertigo, vision problems, and feeling of pressure in the central segment of the face. MR and CT showed a lesion in the body of the sphenoid, with signs of bone destruction and irregular borders. Differential diagnosis included intraosseous meningioma, chordoma, and inflammatory process. Results: Endoscopic/microscopic transnasal approach was performed to reach clival bone and to biopsy the tumor. Histopathological examination showed intraosseous lipoma. Conclusion: Intraosseous lipoma is a rare tumor, or more accurately a hamartoma, and is usually found in the calcaneus or in the proximal femur. It is even rarer in the skull base. Usually it does not present any symptoms and is an incidental finding during imaging for other symptoms. As a rule it runs an indolent course and does not require any treatment. Since no definitive diagnosis can be made only on the basis of imaging (CT and MRI), it requires an open biopsy that if possible should be made in accordance with the principles of minimally invasive surgery.     

Spindle cell lipoma of the spermatic cord

Spindle cell lipoma usually occurs as a solitary, subcutaneous, circumscribed lesion in the back, posterior neck or shoulders of older men. As a paratesticular tumor, spindle cell lipoma is extremely rare. Herein we report the second case of spindle cell lipoma of the spermatic cord in the published reports. The tumor comprised mature adipocytes and uniform spindle cells within thick ropey collagen bundles and mast cells. Immunohistochemical studies showed spindle cells positive for CD34, a diagnostic feature of this tumor.     

An Intraosseous Lipoma of the Calcaneus: A Case Report

Intraosseous lipomas are one of the rarest bone tumors found in the body. The incidence has been reported to be <0.1% of all primary bone tumors. The differential diagnoses of an intraosseous lipoma in the calcaneus include plantar fasciitis, retrocalcaneal bursitis, gout, stress fracture, unicameral bone cyst, aneurysmal bone cyst, osteoblastoma, enchondroma, chondromyxoid fibroma, nonossifying fibroma, giant cell tumor, chondroblastoma, fibrous dysplasia, and chondrosarcoma. It has been reported that 60% to 70% of patients with an intraosseous lipoma present with symptoms. This article describes a case of a pathologic fracture secondary to a large intraosseous lipoma, the surgical treatments, and the subsequent resolution of symptoms. The purpose of our report was 3-fold: (1) to increase awareness of intraosseous lipomas and their potential to cause pathologic fractures in the calcaneus; (2) to suggest a possible treatment protocol for intraosseous lipomas in the calcaneus; and (3) to describe a rare case of an intraosseous lipoma of the calcaneus not located exclusively in the neutral triangle.     

Intraosseous lipoma of the fifth metatarsal: a case report

Intraosseous lipomas are benign tumors of bone. Although the tumor may affect many different locations, small bone involvement is quite rare. The authors report a case of an intraosseous lipoma of the fifth metatarsal treated with curettage and packing with allograft. The clinical and laboratory features of the case are also discussed.     

Intraosseous lipoma of the calcaneus

Abstract Intraosseous lipoma is rare and often misdiagnosed. A patient with intraosseous lipoma in the calcaneus is presented with conventional radiography, bone scintigraphy, magnetic resonance imaging and histological findings. The intention of this work is to show the diagnostic procedure of a rare bone tumor. Despite its benign nature, the tumor is often salvaged by surgery. However, a simple observation can avoid unnecessary surgical intervention and complication.     

Lipome intraosseux du calcanéus : à propos d’une observation

Intraosseous lipoma of the calcaneus is a rare, benign, primary bone lesion, frequently misdiagnosed as other tumours, especially unicameral bone cysts. We present the case of a 48-year-old member of the armed services who was diagnosed with intraosseous lipoma of the calcaneus and discuss the clinical presentation and treatment choice.     

A case of lipoma of the spermatic cord

A rare case of lipoma of the spermatic cord is reported. A 53-year-old man was admitted with painless mass in the left scrotum during the preceding one year. Since an elastic soft, tenderless, smooth surface, fist-sized and low echoic solid pattern mass in the left scrotum was suspected of tumor of the spermatic cord, resection of the mass with left orchiectomy was performed. Histological finding showed lipoma of the spermatic cord. Including the present case, 61 cases of intrascrotal lipoma in the Japanese literature are reviewed.     

An unusual and spectacular case of spindle cell lipoma of the posterior neck invading the spinal cervical canal and posterior cranial fossa

The authors describe the first case of spindle cell lipoma of the posterior neck invading the upper cervical spinal canal and the posterior cranial fossa. Spindle cell lipoma is an extremely rare variant of benign lipoma. It usually occurs as a solitary subcutaneous well-circumscribed lesion in the posterior neck or shoulders of adult men. Local aggressiveness is unusual. This 61-year-old man presented with an increased left cerebellar syndrome and headaches. He also had a posterior neck tumefaction, which had been known about for a long time. Computed tomography and MR imaging studies revealed a voluminous mass extending to the upper cervical canal and posterior cranial fossa and eroding the neighboring bones. The lesion was well delimited, and contrast enhancement was intense and heterogeneous. The tumor, which had initially developed under the muscles of the posterior neck, was totally resected. Histological assessment revealed numerous fat cells with spindle cells secreting collagen. The large size of the tumor and the submuscular location, bone erosion, and compression of the CNS were unusual in this rare subtype of benign adipose tumor. Its presentation could simulate a sarcoma.     

Adult intussusceptions caused by a lipoma in the jejunum: report of a case and review of the literature

ABSTRACT: Intussusceptions in adults is rare. Gastrointestinal lipomas are rare benign tumors and intussusceptions due to a gastrointestinal lipoma constitutes an infrequent clinical entity. Lipoma may develop as a benign tumor in all organs and rarely in large or small intestine. The present report describes a case of jejunojejunal intussusceptions in an adult with a history of colicky upper abdominal pain. Ileo-ileal invagination was diagnosed by computed tomography scan. Exploratory laparotomy revealed jejunojejunal intussusceptions secondary to a lipoma which was successfully treated with segmental intestinal resection. A review of the literature is also performed regarding this rare association revealing the diagnostic and therapeutic debates that exist.     

Das parosteale Lipom

Paraosteal lipoma is a rare benign tumour of the musculoskeletal system. It's features consist of a fatty component seated on a hypersotosis i.e. an exostose-like bone prominence. This tumor has a high tendency of metaplasia. Therefore chondroid elements may be present in addition to the fatty and bony components. Therapy of choice is complete surgical removal including the hyperostosis. Presenting this case the clinical and morphological characteristic of this rare tumour are discussed.     

Laparoscopic Management of a Large Duodenal Lipoma Presented as Gastric Outlet Obstruction

Lipoma of the duodenum is a rare tumor, with fewer than 230 cases reported to date. A majority of these tumors were managed by endoscopic and open surgical intervention, with published data on one case that was managed by total laparoscopy. We report a case of a 43-year-old woman with signs and symptoms of gastric outlet obstruction who was diagnosed as having a large duodenal lipoma that was managed successfully with laparoscopic excision.     

A case of retroperitoneal pleomorphic lipoma

A 71-year-old male patient was referred to our department for further examination for right retroperitoneal tumor. Exploration was done through a flank approach and the tumor with right adrenal gland was removed. A pleomorphic lipoma was diagnosed histopathologically. There have been 8 reported cases of pleomorphic lipoma including our present case in Japan and we discuss the pathogenesis and treatment of this rare disease.     

A hepatic lipoma mimicking angiomyolipoma of the liver: Report of a case

Lipoma of the liver is extremely rare. Since the current knowledge of such tumors is based primarily on individual case reports and small case series, little is so far known about this disease. This report presents a case of lipoma of the liver mimicking angiomyolipoma. The patient was a 38-year-old man, who was hospitalized without any symptoms after a medical check. Radiological examinations (computed tomography, ultrasonography, magnetic resonance imaging) showed a well-defined mass, which was finally diagnosed to be located in the left part of the caudate lobe of the liver, containing two spotty enhanced nodules within the tumor. These were diagnosed to be either lipoma or angiomyolipoma of the liver. The resected specimen measured 9 cm in diameter. The cut surface of the specimen showed an encapsulated, homogeneous, yellowish tumor consisting of mature adipose tissue, which was diagnosed as lipoma of the liver. The two nodules within the tumor were encapsulated hemorrhage. Histopathological examinations revealed the lipoma to be composed of mature lipocytes without angiomatous or myomatous elements. There was no immunoreactivity to homatropine methylbromide 45. Therefore, the final diagnosis was lipoma of the liver, which is an extremely rare benign liver tumor.     

A case of intrathoracic chest wall type lipoma]

Intrathoracic lipoma is a comparatively rare disease. We have recently experienced a case of intrathoracic chest wall type lipoma associated with Charcot-Marie-Tooth disease. The case was a 16-year-old man, in whom preoperative examination of his foot-drop due to Charcot-Marie-Tooth disease pointed out an abnormal chest shadow. Image diagnosis led to intrathoracic chest wall type lipoma. The tumor was easily resectable and was lipoma pathohistologically as well. The literature presented us with 22 cases of such lipoma, which appeared to be predominant for age not more than 10 and age 41-60 and to occur favorably in postero-superior chest wall. Preoperative diagnosis of the present disease became possible to a certain extent by means of CT, MRI. However, in view of imperfect differentiation between lipoma and liposarcoma, surgical resection should be considered, if possibly. No case of intrathoracic lipoma associated with Charcot-Marie-Tooth disease had been reported in the literature, and the causal relationship there between also remains unknown, but to be further examined.     

Lipoma of the esophagus--report of a case and review of the literature

We report herein, a rare case of esophageal lipoma and review the Japanese literature on this subject. Lipoma of the alimentary tract is relatively uncommon but that of the esophagus is extremely rare with only 17 cases having been reported in Japan. The majority of these cases occurred in the cervical esophagus with the most serious symptom being regurgitation of the pedunculated tumor which lead to asphyxia and death in one case. Only 2 cases occurred in the thoracic esophagus and these tumors were small in size and resected endoscopically. This is the first reported case of an esophageal lipoma being located in the thoracic esophagus which was resected through a thorocotomy. The clinical features of esophageal lipoma are also described herein.     

Parietal lipomeningocele--case report

A 2-month-old female infant had had a parietal mass since birth. Neuroimaging revealed a lipoma under the splenium of the corpus callosum that was connected to the subcutaneous lipoma via a bone defect in the cranium bifidum of the parietal region. At the age of 5 months, partial resection of only the extracranial mass was carried out. The histological diagnosis was lipoma. She grew up normally without neurological disorders during follow up for 12 years after the surgery. In the present case, the intracranial lipoma was associated with the cranium bifidum, and dysraphism was possibly involved in the pathogenesis. Resection of only the extracranial subcutaneous tumor can be performed for cosmetic reasons.     

Giant pedunclated lipoma of the esophagus: A case report

IntroductionAlthough Esophageal lipoma is extremely rare and pathologically benign, surgical excision of the lipoma is recommended when symptomatic or uncertain biological behavior. In general, some of the esophageal lipoma has a stalk. The pedunclated non-invasive tumor can be removed by stalk ligation, which is either endoscopic or surgical approache. Therefore, the preoperative evaluation is essential. We herein present a case of a huge esophageal lipoma.Case reportA 82-year-old man, with a wet cough and dyspnea for 6 months, who had the huge mass that almost completely occupied the esophageal lumen, was referred to our institution for the treatment.We diagnosed the mass as non-invasive tumor that has a stalk at the close to the esophageal orifice, by the CT image using air injection into esophageal lumen. We performed excision of the pedunclated huge mobile mass by esophagotomy via right thoracic approach with use of endoloop. Pathological examination showed a lipoma.ConclusionIn conclusion, an adequate preoperative evaluation to identify the correct origin of the stalk is mandatory for a successful treatment. In order to do the adequate preoperative evaluation and successful surgery, our diagnostic method of CT image can be effective.