It is a form of sphingolipidosis (a subgroup of lysosomal storage diseases), as it involves dysfunctional metabolism of sphingolipids.The disease is named after the French physician Philippe Gaucher, who originally described it in 1882. Signs and symptoms
Painless hepatomegaly and splenomegaly: the size of the spleen can be 1500–3000 g, as opposed to the normal size of 50–200 g. Splenomegaly may decrease the affected individuals capacity for eating by exerting pressure on the stomach. While painless, enlargement of spleen increases the risk of splenic rupture. Hypersplenism and pancytopenia, the rapid and premature destruction of blood cells, leads to anemia, neutropenia, leukopenia, and thrombocytopenia (with an increased risk of infection and bleeding). Cirrhosis of the liver is rare. Severe pain associated with joints and bones occurs, frequently presenting in hips and knees. Neurological symptoms occur only in some types of Gauchers (see below):
Type I: impaired olfaction and cognition
Type II: serious convulsions, hypertonia, intellectual disability, and apnea
Type III: muscle twitches known as myoclonus, convulsions, dementia, and ocular muscle apraxia
Parkinsons disease is recognized as being more common in Gauchers disease patients and their heterozygous carrier relatives. Osteoporosis: 75% of patients develop visible bony abnormalities due to the accumulated glucosylceramide. A deformity of the distal femur in the shape of an Erlenmeyer flask  is commonly described. Yellowish-brown skin pigmentation

Genetics
The three types of Gauchers disease are autosomal recessive. Both parents must be carriers for a child to be affected.
In other animals
The acromion process of bats (Mammalia: Chiroptera) is particularly elongated compared to that of  humans. Turtles have an acromion that forms the anterior part of the triradiate pectoral girdle (together with the coracoid and scapula). In this highly specialized endoskeletal structure, the scapula is a dorsal (directed upwards) process attached to the first rib; the coracoid is a posteroventral (directed backward and down) process; and the acromion is a medioventral (directed inwards and down) process (also known as the prescapular process) located at the base of the scapula. This had led to some controversy regarding the evolutionary origin of turtles, because in both pareiasaurs and non-mammalian therapsids the acromion is located at the dorsal tip of the scapula. In modern turtles, the acromion projects ventrally and articulates with the plastron (the flat lower part of the shell), but it evolved in a common ancestor of pareiasaurs and turtles long before the plastron. In these primitive ancestors, the acromion projected forward to form a strong and flexible articulation between the shoulder girdle and the clavicle. Notwithstanding these changes, the acromion of turtles retains its original function, to support the shoulder girdle and increase stride length. Additional images
Notes
 This article incorporates text in the public domain from page 203 of the 20th edition of Grays Anatomy (1918)

Habermeyer, Peter; Magosch, Petra; Lichtenberg, Sven (2006). Classifications and Scores of the Shoulder. Heidelberg: Springer. ISBN 978-3-540-24350-2. Lee, Michael S. Y. (January 22, 1996). "The Homologies and Early Evolution of the Shoulder Girdle in Turtles". Proc. R. Soc. Lond.