(a) A 50-year-old male presented with a 3 cm nodule in the left lobe of thyroid gland with a hard left cervical lymph node. Fine…

(a)(i) Diagnosis and surgical management

Diagnosis: papillary thyroid carcinoma (PTC) of the left lobe with a metastatic left lateral cervical lymph node (cN1b).

FNAC shows "Orphan Annie-eye" nuclei: optically clear, ground-glass nuclei with nuclear grooves and intranuclear pseudo-inclusions. It may also show papillae and psammoma bodies (Bethesda category VI).

Pre-operative work-up

• High-resolution USG of the neck to map the central (level VI) and lateral (levels II–V) compartments.
• FNAC of the node with thyroglobulin estimation in the needle washout.
• CECT or MRI of the neck if the disease is bulky or fixed (avoid iodinated contrast only if early RAI is planned).
• TSH, calcium and PTH.
• Pre-operative laryngoscopy to document vocal-cord function.

Surgery

• Thyroid: total thyroidectomy, because the tumour is 3 cm with nodal metastasis. Lobectomy suits only low-risk, node-negative tumours of 1–4 cm.
• Central neck: central (level VI) neck dissection. It is therapeutic when central nodes are involved, and is usually done alongside a lateral dissection.
• Lateral neck: therapeutic, compartment-oriented lateral neck dissection (modified radical neck dissection of levels IIa–Vb). It preserves the spinal accessory nerve, internal jugular vein and sternocleidomastoid. "Berry picking" of nodes is not advised.
• Technique: preserve both recurrent laryngeal nerves (nerve monitoring helps), the external branch of the superior laryngeal nerve and the parathyroids, with autotransplantation if a gland is devascularised.

Adjuvant treatment and follow-up

• Risk: ATA 2015 intermediate risk (N1b).
• Radioiodine: RAI (I-131) ablation or adjuvant therapy after TSH stimulation (withdrawal or recombinant TSH).
• Hormone therapy: levothyroxine with TSH kept mildly suppressed (about 0.1–0.5 mU/L), relaxed later according to response.
• Surveillance: serum thyroglobulin with anti-Tg antibodies, neck USG and dynamic risk restratification.

(a)(ii) Prognostic scoring systems for differentiated thyroid carcinoma

• AGES (Mayo Clinic): Age, histological Grade, Extent, Size.
• AMES (Lahey Clinic): Age, distant Metastasis, Extent, Size; it classifies patients as low or high risk.
• MACIS (Mayo Clinic): distant Metastasis, Age, Completeness of resection, local Invasion, Size. It is widely used, with a score under 6 carrying the best prognosis.
• GAMES (Memorial Sloan Kettering): Grade, Age, Metastasis, Extent, Size.
• EORTC score.
• DeGroot clinical class (I–IV) and the Ohio State University (Mazzaferri) staging.
• NTCTCS (National Thyroid Cancer Treatment Cooperative Study) staging.
• AJCC/UICC TNM (8th edition): uses an age cut-off of 55 years. All patients under 55 are stage I without distant metastasis, or stage II with it. It predicts mortality.
• ATA 2015 risk stratification: predicts the risk of recurrence (low, intermediate or high). Response-to-therapy categories provide dynamic risk stratification (excellent, biochemical incomplete, structural incomplete, indeterminate).

The older indices and TNM predict death. The ATA system predicts recurrence and guides the use of RAI, TSH targets and the intensity of follow-up.

(a)(iii) Post-operative complications of total thyroidectomy

Immediate (within 24–48 hours)

• Reactionary haemorrhage and neck haematoma: can compress the airway (through laryngeal oedema from venous congestion). It needs bedside opening of the wound and urgent re-exploration.
• Airway problems: laryngeal oedema; bilateral recurrent laryngeal nerve palsy causing stridor, which needs reintubation or tracheostomy; tracheomalacia (rare).
• Unilateral recurrent laryngeal nerve injury: hoarseness and aspiration. Injury to the external branch of the superior laryngeal nerve causes loss of high pitch and voice fatigue.
• Thyroid storm: rare, and seen only in an inadequately prepared thyrotoxic patient.

Early (days)

• Hypocalcaemia from hypoparathyroidism: transient in about 20–30% and permanent in 1–3%. It causes perioral tingling, Chvostek's and Trousseau's signs and tetany. Serum calcium and PTH are monitored, with oral or IV calcium and calcitriol given as needed.
• After lateral neck dissection: chyle leak (particularly on the left, from thoracic duct injury), and injury to the spinal accessory, hypoglossal or phrenic nerve, the sympathetic chain (Horner's syndrome) or the marginal mandibular nerve.
• Wound problems: infection and seroma.

Late

• Permanent hypothyroidism, requiring lifelong levothyroxine.
• Permanent hypoparathyroidism and voice change.
• Hypertrophic scar or keloid.
• Recurrence of the disease.

(b)(i) Sources of health information

The WHO and standard public-health texts list these sources, with Indian examples:

• Census: decennial; the 2027 Census will be the first digital census.
• Registration of vital events: Civil Registration System under the RBD Act, 1969 (amended 2023 to create a national digital database of births and deaths), and Medical Certification of Cause of Death (MCCD).
• Sample Registration System (SRS): estimates of birth, death and infant mortality rates, the maternal mortality ratio and cause of death (verbal autopsy).
• Notification of diseases and surveillance: IDSP and the Integrated Health Information Platform (IHIP).
• Hospital records: HMIS, the facility-based reporting of NHM.
• Disease registers: NCDIR population- and hospital-based cancer registries; Ni-kshay for TB.
• Record linkage: ABHA IDs and electronic health records under the Ayushman Bharat Digital Mission (ABDM).
• Epidemiological surveillance and programme records: U-WIN for immunisation, the RCH portal and ICTC/ART registers.
• Health-service and manpower statistics: Health Dynamics of India (Rural Health Statistics), and the National Health Profile.
• Population health surveys: NFHS, LASI, the Comprehensive National Nutrition Survey (CNNS), the National Sample Survey rounds on health, and ICMR surveys (for example, ICMR–INDIAB).
• Environmental and other routine statistics: air quality (CPCB), water quality, and socio-economic data.

(b)(ii) Limitations of hospital records as a source of health information

• Coverage: records show only the "tip of the iceberg". They capture patients who reach hospital, and miss mild, domiciliary, rural and private-sector cases and deaths at home.
• Selection (Berkson's) bias: admission depends on severity, distance, cost, socio-economic status, specialisation and referral patterns. Hospital patients are therefore not representative of the community.
• No defined population: without a denominator, incidence, prevalence and mortality rates cannot be calculated. Hospital case-fatality overestimates community case-fatality.
• Quality: records are often incomplete, illegible or inaccurate. Diagnoses vary with facilities and change over time, and ICD coding is not standardised.
• Duplication and fragmentation: readmissions and transfers inflate counts. Records are not linked across facilities, a gap ABDM record linkage aims to close.
• Other limitations: the information is curative, with little data on risk factors or the social determinants of health. Reporting is delayed, and record-keeping is weak, especially in the private sector.

(b)(iii) Use of pictograms for presenting health information data

A pictogram (a picture diagram, or ISOTYPE) shows data with pictures or symbols that resemble the item counted, such as a human figure for persons, a cot for hospital beds or a syringe for vaccinations.

Principles of construction

• Equal-sized symbols: each symbol stands for a fixed number (for example, one figure = 1,000 children). Quantities are shown by the number of symbols, not by enlarging a symbol, because larger symbols exaggerate by area.
• Fractions: partial symbols show fractional values.
• Labelling: a clear title, a key, the source and the time period.
• Categories: few, with simple, culturally familiar symbols.

Uses

• Communicating with lay and less-literate audiences through posters, wall charts, IEC and behaviour change communication (BCC) materials. Examples are the number of children immunised, the proportion of institutional deliveries, family size in family-planning campaigns, and COVID-19 appropriate behaviour.
• Making comparisons between areas or years at a glance.
• Supporting health-worker job aids and dashboards.

Limitations

• The picture is only approximate, and precise values are hard to read.
• Pictograms suit only a few categories, and some symbols need cultural adaptation.
• They cannot show complex relationships.
• They can mislead if the symbol size is varied.

(c)(i) Signs and symptoms of Pelvic Inflammatory Disease (PID)

PID is an ascending polymicrobial infection of the upper genital tract, usually by Chlamydia trachomatis or N. gonorrhoeae, together with anaerobes, Mycoplasma genitalium and vaginal flora. Many cases are mild or asymptomatic ("silent PID").

Symptoms

• Bilateral lower abdominal and pelvic pain.
• Abnormal or purulent vaginal discharge.
• Fever and malaise.
• Deep dyspareunia.
• Intermenstrual or postcoital bleeding and menorrhagia.
• Dysuria.
• Right upper-quadrant pain (Fitz-Hugh–Curtis perihepatitis).

Signs

• Minimum criteria (CDC): cervical motion tenderness, uterine tenderness or adnexal tenderness in a sexually active woman with pelvic pain and no other cause.
• Supportive signs: temperature above 38.3 °C; mucopurulent cervical discharge or cervical friability; abundant WBCs on saline microscopy of vaginal fluid; raised ESR or CRP; NAAT-proven gonorrhoea or chlamydia.
• Adnexal mass: suggests a tubo-ovarian abscess.
• Specific tests: endometrial biopsy showing endometritis; TVS or MRI showing thickened, fluid-filled tubes or a TOA; laparoscopic confirmation.

(c)(ii) Complications of PID

Acute

• Tubo-ovarian abscess and pelvic abscess.
• Rupture of an abscess, leading to generalised peritonitis and septic shock.
• Fitz-Hugh–Curtis syndrome.

Long-term sequelae

• Tubal-factor infertility: about 10% after one episode, rising steeply with repeated episodes.
• Ectopic pregnancy: risk raised about 6–10 times.
• Chronic pelvic pain: in about a third of women.
• Other sequelae: hydrosalpinx and pyosalpinx; pelvic adhesions; recurrent PID; increased risk of HIV acquisition; psychosexual problems.

(c)(iii) Management of a 28-year-old P1L1 woman with a unilateral tubo-ovarian abscess

The aims are to control sepsis, preserve fertility and ovarian function, and prevent recurrence.

• Admission and assessment: vitals and signs of sepsis; CBC, CRP, blood cultures; urine pregnancy test to exclude ectopic pregnancy; NAAT for gonorrhoea and chlamydia; HIV and syphilis serology; TVS or CT to confirm abscess size and location. Remove an IUD only if there is no response.
• IV antibiotics with anaerobic cover (CDC 2021): ceftriaxone 1 g IV daily, plus doxycycline 100 mg every 12 hours, plus metronidazole 500 mg every 12 hours. Alternatives are cefoxitin or cefotetan with doxycycline, or clindamycin with gentamicin. After 24–48 hours of clinical improvement, switch to oral doxycycline and metronidazole to complete at least 14 days. About 70% of abscesses under 7–8 cm respond to antibiotics alone.
• Drainage: if there is no response within 48–72 hours, or the abscess is large (over 7–8 cm), image-guided (transvaginal or transgluteal USG/CT) drainage is done. It is minimally invasive and preserves fertility.
• Surgery: laparoscopy (or laparotomy) for suspected rupture, peritonitis or septic shock, or failure of drainage. It includes drainage, adhesiolysis and lavage. If the adnexa is destroyed, unilateral salpingectomy or salpingo-oophorectomy is done, preserving the opposite tube, ovary and uterus. Ruptured TOA is a surgical emergency.
• Partner and prevention: treat the partner (from the last 60 days) and abstain until both complete treatment; counsel on condoms and contraception. In India, NACO/NACP syndromic management uses the pre-packed STI/RTI kit 6 (cefixime, metronidazole and doxycycline) for outpatient PID.
• Follow-up: review within 72 hours of discharge and repeat USG; retest for chlamydia or gonorrhoea at 3 months. Assess tubal patency later with HSG or laparoscopic chromotubation, and refer early for IVF if the tubes are damaged.