Dziedzic-Nyrka Natalia, Dancer Sumari, Kaipak Emma Fredholm, Nowak Lina, Pinilla Manuel, Carrera Ines, Garcia-Pertierra Sofia, Clements Dylan N, Schwarz Tobias
1Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, UK.
2IVC Evidensia Animal Referral Hospital Helsingborg, Helsingborg, Sweden.
J Am Vet Med Assoc. 2024 Oct 3;263(1):1-6. doi: 10.2460/javma.24.06.0429. Print 2025 Jan 1.
To describe the CT features of Morel-Lavallée lesions (MLLs) and their association with trauma in cats. This study aimed to investigate whether MLL fluid in cats accumulates between the dermis and deep fascia near superficial trauma, exhibits a vertical attenuation gradient, and shows no or only mild contrast enhancement on CT images.
3 young cats: a 1-year-old neutered male domestic shorthair cat, a 2-year-old neutered male domestic shorthair cat, and a 3-year-old neutered female British Shorthair cat.
The clinical presentation of the 3 cats in the study involved recurrent swelling and fluid accumulation affecting at least 1 pelvic limb following trauma.
In all cases, there was a fluid-filled space deep to the skin and superficial subcutaneous layer but superficial to the deep fascial plane overlying the muscular component of the pelvic limbs. The MLL fluid had a vertical attenuation gradient and no or only mild contrast enhancement.
Morel-Lavallée lesions are often initially overlooked, likely due to distraction by concomitant significant bone injuries, and can be mistaken for hematomas, seromas, subcutaneous edema, contusions, or cellulitis, leading to less aggressive treatment. If left untreated, MLLs present a significant risk of extensive skin necrosis compared to other types of subcutaneous swelling.
描述猫莫雷尔-拉瓦利埃损伤（MLLs）的CT特征及其与创伤的关系。本研究旨在调查猫的MLL液体是否在浅表创伤附近的真皮和深筋膜之间积聚，在CT图像上是否呈现垂直衰减梯度，以及是否无强化或仅轻度强化。
3只年轻猫：1只1岁绝育雄性家猫短毛猫、1只2岁绝育雄性家猫短毛猫和1只3岁绝育雌性英国短毛猫。
研究中的3只猫的临床表现为创伤后至少1条后肢反复肿胀和积液。
在所有病例中，皮肤和浅皮下层深部但覆盖后肢肌肉成分的深筋膜平面浅部存在一个充满液体的间隙。MLL液体具有垂直衰减梯度，无强化或仅轻度强化。
莫雷尔-拉瓦利埃损伤最初常被忽视，可能是由于同时存在的严重骨损伤的干扰，且可能被误诊为血肿、血清肿、皮下水肿、挫伤或蜂窝织炎，从而导致治疗不够积极。与其他类型的皮下肿胀相比，如果不治疗，MLLs存在广泛皮肤坏死的重大风险。
