A Rare Diagnosis of Right Lung Mass in a Young Girl

Case DesCriptionA 15-year-old female presented with a 3-month history of progressive breathlessness, persistent dry cough, and marked unintentional weight loss accompanied by severe anorexia, without any history of fever, night sweats, hemoptysis, or known tuberculosis contact.On examination, she appeared markedly cachectic with a body weight of 20 kg and height of 136 cm; her vital signs revealed hypoxia with SpO₂ of 89% on room air, tachypnea with a respiratory rate of 41/minute, tachycardia (heart rate of 112/minute), and a blood pressure of 102/68 mm Hg.The inspection revealed tracheal deviation to the left, along with visible use of accessory muscles of respiration.Palpation demonstrated tracheal deviation to the left, and percussion of the right hemithorax yielded a dull note with complete absence of air entry on auscultation.There was no peripheral lymphadenopathy, hepatosplenomegaly, bone tenderness, or evidence of primary bone lesions.Laboratory studies showed anemia (Hb of 9 gm/dL) consistent with nutritional deficiency, normal total leukocyte count for age, hypoproteinemia, and no evidence of active infection, as procalcitonin and CRP were within normal limits.A blood culture was performed and demonstrated no growth of any pathogenic organism, effectively ruling out concurrent bloodstream infection.