A 32 years lady present with shoulder tip pain and diagnosis is pan coast tumour and presents with miosis. Diagnosis is

Pan-coast tumor can cause compression of sympathetic ganglion resulting in Horner syndrome. These tumors are associated with Pancoast syndrome, characterized by pain, that may arise in shoulder / chest wall & characteristically radiates to ulnar surface of hand Features of Horner's syndrome: P - Ptosis M - Miosis E - Enophthalmos A- Anhidrosis L - Loss of ciliospinal reflex