Rare case of cecal carcinoma surrounding the femoral head along the psoas major muscleA 52-year-old female was admitted to our hospital with a 10-month history of abdominal mass in her right lower abdomen. Physical examination revealed a palpable hard mass, poor mobility, mild tenderness, redness on the surface of the skin, and no signs of tenderness, rebound pain, or muscle tightness, in the right lower abdomen and upper 1/3 of the right thigh, and limited range of motion in the right hip. Other physical examinations were normal. Laboratory investigations, including routine blood tests, liver and kidney function, tumour markers, and urine and stool tests, were unremarkable. Adenocarcinoma was shown on biopsy.Computed tomography (CT) scans revealed an irregular soft tissue mass, originating from the cecum and encasing the right femoral head along the psoas major muscle, in the right iliac fossa to inguinal region, with unclear boundary and equal or slightly lower density. The lesion showed mild to moderate uneven enhancement in contrast-enhanced