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Lipoma — Clinical Guidelines

Overview

Lipomas are benign mesenchymal tumors composed of mature adipocytes, commonly found in subcutaneous tissues but can occur in various anatomical locations including bone, brain, and visceral organs. 1 6 8

Diagnosis

Clinical Presentation: Often asymptomatic, but can present with pain, pressure symptoms, or mimic other conditions depending on location (e.g., rotator cuff tear, hearing loss). 1 3 13

Imaging: MRI and CT are crucial for diagnosis, especially in deep-seated or atypical locations like intraosseous or intracranial sites. 8 10 12

Histopathology: Definitive diagnosis often requires histopathological examination, particularly for variants like angiofibrolipoma or pleomorphic lipoma. 3 15

Management

Surgical Excision: Primary treatment for symptomatic lipomas, tailored to location (e.g., marginal excision for spinoglenoid notch, endoscopic removal for colonic lipomas). 1 7 17

Minimally Invasive Techniques: Liposuction for subcutaneous lipomas and endoscopic methods for colonic lipomas can reduce scarring and complications. 2 7

Observation: Asymptomatic lipomas, especially incidental findings, may be managed conservatively without intervention. 13

Special Populations

Pediatrics: Specific management strategies not detailed in provided abstracts.

Elderly: Surgical risks may be higher; careful patient selection and minimally invasive techniques recommended. 1

Comorbidities: Management should consider coexisting conditions; endoscopic techniques may offer safer alternatives in high-risk patients. 7 17

Key Recommendations

Excise Symptomatic Lipomas: Surgical excision is recommended for symptomatic lipomas to alleviate symptoms and confirm diagnosis. (Evidence: Strong 1 7)

Consider Minimally Invasive Approaches: For subcutaneous and colonic lipomas, minimally invasive techniques like liposuction and endoscopic removal can be safer and less invasive. (Evidence: Moderate 2 7)

Observe Asymptomatic Lesions: Asymptomatic lipomas, particularly incidental findings, can be managed conservatively without surgical intervention. (Evidence: Expert opinion 13)

References

1 Kim JY, Choe JS, Cho JH. A Large Size Lipoma at Spinoglenoid Notch Mimicked Traumatic Rotator Cuff Tear. The journal of hand surgery Asian-Pacific volume 2018. link 2 Gaucher S, Maladry D, Silitra AM, Documet D, Philippe HJ. Removal of subcutaneous lipomas: Interest of liposuction. Journal of cosmetic dermatology 2017. link 3 Jacob A, Kneile J, Welling DB. Angiofibrolipoma of the ear canal. The Laryngoscope 2005. link 4 Perimenis P, Liatsikos E, Athanasopoulos A, Barbalias G. Penile lipomas, cause of sexual dysfunction. International urology and nephrology 2002. link 5 Gupta S, Pandhi R, Kumar B. "Pot-lid" technique for aesthetic removal of small lipoma on the face. International journal of dermatology 2001. link 6 Tejero A, Arenas AJ, Sola R. Bilateral intraosseous lipoma of the calcaneus. A case report. Acta orthopaedica Belgica 1999. link 7 Araki Y, Isomoto H, Tsuji Y, Matsumoto A, Yasunaga M, Hayashi K et al.. Endoscopic removal with clipping for colonic lipomas. The Kurume medical journal 1998. link 8 Beşkonakli E, Cayli SR, Ergün R, Okten AI. Lipoma of the interpeduncular fossa: demonstration by CT and MRI. Neurosurgical review 1998. link 9 Dawson JS, Dowling F, Preston BJ, Neumann L. Case report: lipoma arborescens of the sub-deltoid bursa. The British journal of radiology 1995. link 10 Williams CE, Close PJ, Meaney J, Ritchie D, Cogley D, Carty AT. Intraosseous lipomas. Clinical radiology 1993. link81453-9) 11 Trapp CF, Baker EJ. Mobile encapsulated lipomas. Cutis 1992. link 12 Mata JM, Cáceres J, Ferrer J, Gómez E, Castañer F, Velayos A. Endobronchial lipoma: CT diagnosis. Journal of computer assisted tomography 1991. link 13 Marin GA, Villa GL. Colonic lipomas. Endoscopic and radiologic characteristics. New Jersey medicine : the journal of the Medical Society of New Jersey 1990. link 14 Baruchin AM, Herold ZH, Shmueli G, Lupo L. Macrodystrophia lipomatosa of the foot. Journal of pediatric surgery 1988. link80157-x) 15 Nigro MA, Chieregato GC, Querci della Rovere G. Pleomorphic lipoma of the dermis. The British journal of dermatology 1987. link 16 Sarma DP, Weilbaecher TG, Basavaraj A, Reina RR. Symptomatic lipoma of the duodenum. Journal of surgical oncology 1984. link 17 Bar-Meir S, Halla A, Baratz M. Endoscopic removal of colonic lipoma. Endoscopy 1981. link 18 Fukui M, Tanaka A, Kitamura K, Okudera T. Lipoma of the cerebellopontine angle. Case report. Journal of neurosurgery 1977. link

Lipoma