Normal and abnormal MR imaging findings in the intrinsic muscles of the hand

Congress:

ESSR 2018

Poster Number:

P-0128

Type:

Educational Poster

Keywords:

Tissue characterisation, Pathology, Diagnostic procedure, MR-Functional imaging, MR, Musculoskeletal system, Musculoskeletal soft tissue, Extremities

Authors:

B. Kislinger¹, A. Chhabra², R. A. K. Dessouky³, G. Andreisek⁴; ¹Frauenfeld/CH, ²Dallas , Tx/US, ³EG, ⁴Münsterlingen/CH

DOI:

10.1594/essr2018/P-0128

DOI-Link:

https://dx.doi.org/10.1594/essr2018/P-0128

Background

Like other skeletal muscles, the intrinsic muscles of the hand can be affected by various conditions resulting in change of morphology or MR imaging appearance. Detailed knowledge about normal MR imaging appearance, normal anatomy, as well as common normal variants and pathologies is always crucial for correct diagnoses.

This educational poster will review the anatomy and function of the intrinsic muscles of the hand and will use clinical cases to illustrate some typical findings in common pathologies as followed:

Normal Imaging Findings
Function and Anatomy	^{Hypothenar Muscles}	^{_{Abductor Digiti Minimi}} ^{_{Flexor Digiti Minimi}} ^{_{Opponens Digiti Minimi}}
	_{Thenar Muscles}	^{_{Flexor Pollices Brevis}} ^{_{Abductor Pollices Brevis}} ^{_{Adductor Pollices}} ^{_{Opponens Pollicis}}
	_{Interosseous Muscles}	^{_{Dorsal Interosseous}} ^{_{Palmar Interosseous}}
	_{Lumbrical Muscles}
Spectrum of Abnormal Imaging Findings	_{Anatomical Variations}
	_{Trauma- and Exercise-induced Changes}
	_{Denervation Syndromes}
	_Myositis
	_{(Pseudo-) Tumors}