"Doughnut" sign is seen in
.CONGENITAL HYPEROPHIC PYLORIC STENOSIS is hyperophy of musculature of pyloric antrum, especially the circular muscle fibres, causing primary failure of pylorus to relax. Duodenum is normal. Clinical features of congenital pyloric stenosis 1. Vomiting 2. VGP 3. Palpable mass 4. Constipation and dehydration Diagnosis is established by -- Clinical examination. -- U/S abdomen (very useful)--Doughnut sign. * Pyloric muscle 4 mm or more in thickness. * Length of pyloric canal > 1.8 cm. -- Barium meal shows obstruction. ref:SRB&;S manual of surgery,ed 3,pg no 752
Intussusception
Carcinoma colon
CHPS
Volvulus
G.I.T