Diagnosis and Management of Occult Cervical Tuberculous Lymphadenopathy

Abstract

Objective: Some cervical tuberculous lymphadenopathy (CTL) presents no evidence of tuberculosis (TB), even after thorough examination of a fine-needle aspiration (FNA) specimen. After the examination of excisional specimens, when the polymerase chain reaction (PCR) analysis identifies the nucleic acid of Mycobacterium tuberculosis (Mtb) or the culture results are positive, then the diagnosis of CTL is established. We refer to this condition as occult CTL (OCTL). Patient and Methods: The present work is a retrospective review of a consecutive series of OCTL cases that were treated at the Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, between June 2015 and September 2020. When the diagnosis of OCTL was established, the patients received the standard anti-TB chemotherapy. Results: Fourteen cases of OCTL, including 9 female and 5 male patients, aged 24 to 71 years (median age 42 years), were included in the present study. The most commonly observed levels of lymph node involvement were level V and level II. Each level of the involved lymph nodes was removed entirely through en bloc surgical resection. An evaluation of the excisional specimens led to positive PCR results in all 14 cases, with 2 cases presenting positive culture and 3 cases exhibiting positive acid-fast bacilli (AFB) staining. Recovery was uneventful, and the anti-TB chemotherapy was completed in all cases. The median duration of follow-up was 29 months, during which no case of TB relapse was observed. Conclusions: Wide surgical excision is crucial for the diagnosis and management of OCTL, and when used in combination with anti-TB chemotherapy, it results in satisfactory patient outcomes.