Intramuscular Lipoma of the Flexor Hallucis Brevis Muscle

Kalmar, Garrett; Doobay, Nathalia

doi:10.7547/15-082

Cited by 5 publications

(6 citation statements)

References 15 publications

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“…13 MRI is the preferred imaging modality to aid in diagnosis and may also be indicated prior to excision to assess the anatomical relationship of the tumor and adjacent structures. 16 On MRI, intramuscular lipomas are typically round or fusiform, displaying signal intensity of fat with similar findings in both T1 and T2 weighted images. 10 Although lipomas may have characteristic findings on MRI, one study demonstrated that observers correctly diagnosed a large (greater than 5 cm) deep mass as a lipoma or liposarcoma 69% of the time.…”

Section: Discussionmentioning

confidence: 95%

“…Surgical approaches include intralesional curettage, local excision, wide excision with negative margins, complete muscle excision, and compartmental excision. 16 Advocates of wide excision cite the risk of malignancy or recurrence, since the possibility of recurrence with intralesional curettage would necessitate reoperation and additional muscle excision. 7 Histopathology is recommended for definitive diagnosis and to rule out malignant lesions.…”

Section: Discussionmentioning

confidence: 99%

“…MRI is the preferred imaging modality to aid in diagnosis and may also be indicated prior to excision to assess the anatomical relationship of the tumor and adjacent structures 16. On MRI, intramuscular lipomas are typically round or fusiform, displaying signal intensity of fat with similar findings in both T1 and T2 weighted images 10.…”

Section: Discussionmentioning

confidence: 99%

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Forearm mass dilemma during a pediatric hand surgery medical mission: a case report

Talsania

Novak

Alolabi

et al. 2021

Current Orthopaedic Practice

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Forearm mass dilemma during a pediatric hand surgery medical mission: a case report

Talsania

Novak

Alolabi

et al. 2021

Current Orthopaedic Practice

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“…Some lipomas that occur in the muscle are called IMLs, and the first case of IML in the trapezius muscle was reported in 1853[ 6 , 7 ]. Most of the IMLs occur in the trunk and proximal limbs, and tumors located in the wrist and fingers are rarely reported[ 8 , 9 ]. In 1988, Brand and Gelberman[ 10 ] reported the first case of lipoma in FDS causing triggering at the carpal tunnel and median nerve compression.…”

Section: Discussionmentioning

confidence: 99%

Trigger finger at the wrist caused by an intramuscular lipoma within the carpal tunnel: A case report

Huang¹,

Jin²,

Song³

et al. 2021

WJCC

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BACKGROUND Trigger finger at the wrist, which occurs with finger movement, is an uncommon presentation. Few reports describing cases of trigger finger at the wrist have been published. Thus, we present a case of an intramuscular lipoma arising from an anomalous flexor digitorum muscle belly in a 48-year-old female patient causing painful finger triggering at the wrist and carpal tunnel syndrome (CTS). CASE SUMMARY A 48-year-old woman with complaints of a catching sensation during wrist motion and a progressive tingling sensation on the palmar aspect of the right hand for approximately 2 years was referred to our hospital. Triggering of the index to middle finger was evident with a palpable and audible clunk over the carpal tunnel during passive motion. Tinel’s sign was positive over the carpal tunnel of the right wrist with a positive Phalen’s test. Nerve conduction studies of the median nerve demonstrated a right CTS. Ultrasound examination revealed a 2.5 cm × 2.0 cm subcutaneous hyperechoic mass with no obvious blood flow at the wrist of the right arm. Surgical excision of the tumor and muscle mass led to a resolution of the patient’s symptoms, and any triggering or discomfort disappeared. The patient has had no evidence of recurrence at more than 1 year of follow-up. CONCLUSION Triggering of the fingers at the wrist is rare. It must be noted that there are many possible causes and types of triggering or clicking around the wrist. Accurate diagnosis is mandatory to avoid inaccurate treatment of patients with trigger wrist. During the diagnosis and treatment of CTS, attention should be paid to the variation of tendon tissue in the carpal tunnel, to avoid only focusing on the release of transverse carpal ligament and ignoring the removal of anomalous muscle belly.

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“…They may be associated with painful wrist triggering with associated carpal tunnel syndrome caused by an intramuscular lipoma of the lumbrical muscle [72,73]. They may be localized to the thenar [74][75][76][77][78], in the thenar or hypothenar muscles [79], to the abductor digiti minimi [80], to the extensors [81] and to the lexor hallucis brevis [82]. …”

Section: Editorialmentioning

confidence: 99%

Anatomical Distribution of Intramuscular Lipomas

Sferopoulos¹

2017

J Forensic Sci Res

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EDITORIALLipomas are the most common type of soft tissue tumor occurring in the subcutaneous tissue. Rarely, lipomas present in the deep soft tissue such as intermuscular, intramuscular, and parosteal sites. When they occur within a skeletal muscle they are called intramuscular lipomas. Intramuscular lipomas may involve both children and adults. They are benign, nontender, deep located, circumscribed but unencapsulated lesions. Intramuscular lipomas account less than 1% of all lipomas. Most are located within a single muscle (solitary), while cases involving two or more muscles are very rare. They present with typical histological features. They may be divided into the in iltrative, the well-circumscribed and the mixed type. Differential diagnosis of the in iltrative type from liposarcoma is very dif icult. Local recurrence may be evident if the surgical margin is not clear. They can occur in almost any anatomical site [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].Intramuscular lipomas of the head may involve the tongue, which is one of the most commonly involved sites [16][17][18][19][20][21][22][23][24] The chest wall [44,45] and the intercostal muscles [46] may also be involved. It may appear as a breast mass involving the pectoralis major [47][48][49] and may also involve the heart; involvement of the left ventricular myocardium, extending to the epicardial space; has also been reported [50]. The large muscles of the trunk may be involved such as the trapezius, the latissimus dorsi, the rhomboid major and the muscles of the anterior abdominal wall [14,51].

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Intramuscular Lipoma of the Flexor Hallucis Brevis Muscle

Cited by 5 publications

References 15 publications

Forearm mass dilemma during a pediatric hand surgery medical mission: a case report

Forearm mass dilemma during a pediatric hand surgery medical mission: a case report

Trigger finger at the wrist caused by an intramuscular lipoma within the carpal tunnel: A case report

Anatomical Distribution of Intramuscular Lipomas

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