Pocketbook of Differential Diagnosis

Coma

Coma can be defined as a state of prolonged unconsciousness from which a person cannot be roused, or numerically categorised as a GCS score of <8. Causes (all causes of coma require emergency assessment) Trauma ● Head injury (diffuse axonal…

Clubbing

Clubbing is the selective bulbous enlargement of the distal segments of fingers or toes due to proliferation of connective tissues ( Fig. 10 ). Open full size image Figure 10 Clubbing . Note the exaggerated longitudinal curvature and the loss…

Chest pain

Chest pain is a common presenting symptom of disorders that can range from trivial to life-threatening. Causes Cardiovascular ● Angina ● Myocardial infarction ● Pericarditis/myocarditis ● Acute aortic dissection Gastrointestinal ● Gastro-oesophageal reflux disease ● Peptic ulcer disease ● Oesophageal…

Breast pain

Pain in the breast is a common symptom in general surgical practice. Most cases are benign and due to cyclical mastalgia, but occasionally pain may be the presenting symptom of carcinoma. Causes ● Cyclical mastalgia (fibroadenosis, cystic mastitis) ● Noncyclical…

Backache

Backache is one of the most common complaints seen in general practice and orthopaedic clinics. Most causes are either traumatic or degenerative, but other causes are numerous and may occur as a result of pathology in almost any system of…

Axillary swellings

The great majority of axillary swellings are enlarged lymph nodes. Axillary nodes can be enlarged due to secondary deposits from carcinoma of the breast. Most axillary swellings are easily diagnosed from clinical examination alone. Causes Superficial ● Acute abscess ●…

Ascites

Ascites is the accumulation of excess free fluid in the peritoneal cavity ( Fig. 5 ). Open full size image Figure 5 CT scan of ascites . There is free fluid throughout the peritoneal cavity (arrows) . Causes Hepatic ●…

Arm swellings

Swelling may be localised or generalised. Localised swellings may be related to joints or fractures. Localised swellings around joints are covered in the section on Joint Disorders (p. 247). This section includes only those conditions that may cause generalised swelling…

Arm pain

This section deals with pain in the upper limb unrelated to joint pains, and focuses on causes related to either neurological or vascular lesions. Musculoskeletal causes of arm pain are covered in the chapter on Joint Disorders (p. 247). Causes…